Inner Mongolia Climate

Inner Mongolia (内蒙古自治区) stretches approximately 2,400 kilometres from northeast to southwest, crossing northeastern, northern and northwestern China. Its enormous east–west span, high plateau terrain and distance from the ocean create one of China’s strongest regional climate contrasts.

Most of the region has a temperate continental monsoon climate. Spring warms quickly but is dry, windy and unstable; summer is short, warm and responsible for most annual rainfall; autumn is clear but brief, with temperatures falling rapidly; and winter is long, cold and dominated by dry continental air and frequent cold waves.

Annual precipitation generally ranges from about 100 millimetres in the western deserts to around 500 millimetres in the wetter eastern and mountain areas. Most places receive more than 2,700 hours of sunshine annually. The frost-free season is relatively short, generally lasting about 80–150 days.

There is no single “Inner Mongolia climate.” Hailar (海拉尔) may remain below −20°C in midwinter while Wuhai (乌海) experiences much milder daytime conditions. Hulunbuir (呼伦贝尔) may be green and rainy in July, while the Alxa deserts (阿拉善沙漠) remain extremely dry. Travellers therefore need to plan according to the specific city, banner, elevation and landscape rather than relying on a province-wide forecast.

How Geography and Landforms Shape the Climate

The Inner Mongolian Plateau Creates a Strong Continental Climate

Most of Inner Mongolia is a plateau landscape lying around or above 1,000 metres. The region also contains mountains, hills, river plains, forests, sandy lands, deserts, lakes and broad grasslands. The high elevation and inland position allow the land to heat and cool rapidly, producing large differences between daytime and nighttime temperatures.

Strong sunshine can make a summer afternoon feel warm, but temperatures may fall quickly after sunset. In spring and autumn, a comfortable midday can be followed by a near-freezing night. This temperature range is one of the most important considerations when packing for Inner Mongolia.

The Greater Khingan Mountains Divide Forest and Grassland Climates

The Greater Khingan Mountains (大兴安岭) extend through northeastern Inner Mongolia and form an important climatic and ecological boundary. Their forested slopes intercept moisture and create cooler, wetter conditions around Arxan (阿尔山), Genhe (根河), Mangui (满归) and other eastern mountain areas.

East and southeast of the mountain system, seasonal monsoon influence is stronger. Forests, wetlands and meadow grasslands receive considerably more moisture than the central plateau and western desert regions.

The mountains also delay spring and advance winter. Snow can remain in northern forest areas well into April, while frost may return as early as September.

The Yinshan Mountains Separate the Hetao Plain from the Northern Plateau

The Yinshan Mountains (阴山山脉) cross central Inner Mongolia and form another major climate boundary. Moist air rising along the southern slopes produces relatively greater rainfall around Hohhot (呼和浩特), Baotou (包头) and the Yellow River corridor.

North of the mountains, the Ulanqab and Xilingol plateaus are colder, windier and generally drier. The contrast between the sheltered Yellow River plain and the exposed northern grasslands can be considerable even across a relatively short distance.

Official regional descriptions identify the Greater Khingan and Yinshan mountains as major natural boundaries controlling temperature and precipitation differences across Inner Mongolia.

Rainfall Decreases Sharply from East to West

Moisture carried by the East Asian summer monsoon reaches eastern Inner Mongolia more easily than the distant western interior. Rainfall therefore decreases broadly from northeast and southeast toward the west.

This creates a clear ecological progression:

Greater Khingan forests and wetlands → meadow grasslands → typical steppe → desert steppe → Gobi and desert

Hulunbuir, Xing’an League (兴安盟), Tongliao (通辽) and eastern Chifeng (赤峰) receive sufficient summer rainfall to support forests, wetlands, farmland and productive grasslands. Xilingol (锡林郭勒) and Ulanqab (乌兰察布) are dominated by open steppe and semi-arid grassland, while Alxa, western Ordos and parts of Bayannur (巴彦淖尔) and Wuhai have desert climates with very low rainfall and high evaporation.

The Yellow River Creates Local Agricultural and Wetland Microclimates

The Yellow River passes through Ordos, Hohhot, Baotou, Bayannur, Wuhai and Alxa’s eastern margin. The river and irrigation systems support the Hetao Plain (河套平原), lakes, wetlands and productive farmland within an otherwise dry region.

Large water surfaces such as Wuliangsuhai Lake (乌梁素海), Hasuhai Lake (哈素海) and Wuhai Lake (乌海湖) can increase local humidity and fog. However, they do not fundamentally change the dry continental character of western and central Inner Mongolia.

Deserts Intensify Heat, Dryness and Daily Temperature Differences

The Kubuqi Desert (库布其沙漠), Ulan Buh Desert (乌兰布和沙漠), Tengger Desert (腾格里沙漠) and Badain Jaran Desert (巴丹吉林沙漠) experience strong solar radiation, limited cloud cover and very low humidity.

Summer afternoons can become extremely hot at dune level, but desert nights may feel cool. Spring is the windiest season and has the greatest risk of blowing sand and reduced visibility. Autumn provides the most stable conditions for desert travel.

Alxa has a dry continental climate characterised by low rainfall, frequent wind, abundant sunshine and strong evaporation.

Main Climate Regions of Inner Mongolia

Monthly Mean Temperature Table

The following table compares four representative locations: Hailar for the northeastern grassland, Xilinhot for the central grassland plateau, Hohhot for the Yinshan–Yellow River region and Ordos for the south-central plateau and desert margin.

The figures are rounded monthly mean temperatures intended for long-term travel planning rather than short-term forecasting. Hailar values use 1991–2020 climate normals; the other city figures are compiled from long-period climate datasets.

The table represents urban meteorological stations. Forest valleys, exposed grassland camps, volcanoes, dune fields and mountain summits may be considerably colder at night.

Inner Mongolia Twelve-Month Climate and Travel Guide

January: Ice, Snow and Extreme Cold

January is the coldest period across Inner Mongolia. Hulunbuir, Genhe and northern forest areas frequently experience temperatures below −30°C, while strong wind can make exposed conditions feel significantly colder.

This is a rewarding month for the Hulunbuir ice-and-snow season, frozen rivers, winter Naadam events, snow-covered forests and camel festivals in Xilingol or Alxa.

Recommended clothing: Expedition-grade down coat, thermal underwear, fleece, insulated trousers, snow boots, balaclava, thick gloves and heat packs.

Recommended route: Hailar–Chen Barag Banner–Manzhouli, or Hohhot–Xilingol winter grassland.

February: Winter Festivals and Clear Snow Landscapes

February remains very cold but often offers clear skies and extended daylight. Chinese New Year celebrations, ice activities and winter pastoral experiences continue across the region.

In central and western Inner Mongolia, sunny afternoons may feel relatively comfortable, but temperatures drop sharply after sunset.

Recommended clothing: Full winter equipment remains essential. Carry spare gloves and protect phones and camera batteries from cold.

Recommended route: Hohhot–Baotou–Ordos, combining museums, New Year customs and desert winter scenery.

March: Yellow River Thaw and Windy Spring

March marks the beginning of spring in western and central Inner Mongolia, while Hulunbuir remains largely wintry. The Yellow River begins to thaw, attracting visitors to open-river ceremonies and fish festivals.

This is also one of the windiest months. Blowing dust and sand can affect Hohhot, Baotou, Bayannur, Wuhai and Alxa.

Recommended clothing: Windproof shell, insulated jacket, long trousers, sunglasses, mask and moisturising products.

Recommended route: Hohhot–Baotou–Bayannur–Wuhai for Yellow River and open-river culture.

April: Desert Landscapes and Unstable Weather

April brings fast warming but remains highly unpredictable. Temperatures may rise above 20°C during the day and fall close to freezing at night.

The month can be suitable for cultural cities, the Kubuqi Desert and sections of the Yellow River route, but spring sandstorms remain an important risk.

Recommended clothing: Layered clothing, windproof jacket, sun protection and closed shoes that keep out sand.

Recommended route: Hohhot–Ordos–Xiangshawan–Genghis Khan Mausoleum.

May: One of the Best Months for Central and Western Inner Mongolia

May is comfortable in Hohhot, Baotou, Ordos, Wuhai and Alxa. Grasslands in the northeast may still be only partly green, but forests and valleys begin their spring growth.

Arxan’s azalea season and Alxa’s desert events make May attractive for travellers who prefer moderate temperatures and fewer summer crowds.

Recommended clothing: Long sleeves, light down or fleece for evenings, windbreaker, hat and sunscreen.

Recommended route: Ulanhot–Arxan, or Hohhot–Ordos–Wuhai–Alxa.

June: The Beginning of the Grassland Season

June is one of the best months for a broad Inner Mongolia tour. Grasslands become green, flowers begin appearing and daytime temperatures remain comfortable.

The Oroqen Bonfire Festival and Ewenki Sebin Festival take place around 18 June in Hulunbuir. Rainfall and thunderstorms become more frequent toward the end of the month.

Recommended clothing: Lightweight daytime clothing, waterproof shell, fleece or thin down jacket for evening and water-resistant walking shoes.

Recommended route: Hailar–Ewenki Banner–Ergun–Enhe–Genhe.

July: Green Grasslands and Peak Naadam Season

July is the warmest and generally rainiest month. Hulunbuir, Xilingol and Xing’an grasslands reach their green peak, while most major Naadam events take place between July and August.

Rain frequently arrives as short but intense thunderstorms. Unpaved grassland roads may become muddy, and lightning is dangerous on exposed plateaus.

Recommended clothing: Breathable clothes, sun hat, sunscreen, waterproof jacket, quick-drying trousers and a warm evening layer.

Recommended route: Hohhot–Xilingol–West Ujimqin Banner, or Hailar–Morigele River–Heishantou–Manzhouli.

August: Mature Grasslands and Cool Nights

August remains an excellent grassland month. The first half resembles July, while the second half brings cooler evenings and early yellow colour in northern forests.

It is a good period for Xing’an League Naadam, horse culture, grassland photography and family travel.

Recommended clothing: Summer clothing during the day, fleece or light insulated jacket after sunset and proper rain protection.

Recommended route: Ulanhot–Ulan Mod Grassland–Arxan.

September: The Best Autumn Photography Month

September is one of Inner Mongolia’s most visually diverse months. The Greater Khingan forests turn yellow, Hulunbuir wetlands become golden and grasslands shift from green to warm autumn tones.

Early September is ideal for Hulunbuir and Arxan. By late September, attention shifts west toward Ejin Banner and its desert poplar forests.

Recommended clothing: Warm jacket, fleece, long trousers, light gloves for northern dawn photography and strong sun protection.

Recommended route: Hailar–Ergun–Enhe–Genhe–Arxan during early September.

October: Desert and Poplar Forest Season

October is cold in the northeast but remains one of the best periods for Alxa, Wuhai, Ordos and Bayannur.

Ejin Banner’s golden desert poplar forests normally attract large numbers of visitors around late September and early October. Desert skies are often clear, but nighttime temperatures can approach or fall below freezing.

Recommended clothing: Medium or heavy jacket, thermal layer, windproof trousers, hat and gloves for sunrise visits.

Recommended route: Bayannur–Wuhai–Bayanhot–Ejin Banner.

November: Early Winter and Quiet Cultural Travel

November brings winter conditions to most grasslands. Rural camps close, livestock move to winter pastures and many scenic services operate on reduced schedules.

Hohhot, Baotou, Ordos and Chifeng remain suitable for museums, archaeological sites, monasteries and urban cultural tours.

Recommended clothing: Down or padded coat, thermal underwear and windproof footwear.

Recommended route: Hohhot–Baotou–Ordos–Chifeng cultural tour.

December: The Return of Ice and Snow Tourism

December marks the start of the major winter season. Hulunbuir, Xilingol, Chifeng and Ulanqab organise snow, ice and winter Naadam activities.

Daylight is short and roads may be affected by blowing snow, black ice and reduced visibility.

Recommended clothing: Full cold-weather system, insulated boots and face protection.

Recommended route: Hailar–Manzhouli–Genhe, with an experienced winter driver.

Weather and Travel Guide for All 12 Cities and Leagues

Hohhot

Hohhot lies on the southern side of the Yinshan Mountains at an elevation of more than 1,000 metres. It has dry sunny weather, cold winters and warm summers, with most rainfall concentrated from June to August.

Best season: May to June and late August to October.

Travel focus: Inner Mongolia Museum, Dazhao Temple (大召寺), Chilechuan Grassland (敕勒川草原), Hasuhai and Laoniuwan.

Clothing focus: Wind protection in spring, sunscreen in summer and a proper insulated coat from November to March.

Baotou

Baotou is influenced by the Yinshan Mountains, the Yellow River and the semi-arid plateau. Spring is dry and windy, summer rainfall is concentrated, autumn is clear and winter is cold with little snow.

Best season: May–June and August–October.

Travel focus: Wudangzhao Monastery (五当召), Xilamuren Grassland (希拉穆仁草原), Saihantala Urban Grassland and Yellow River landscapes.

Clothing focus: Dust protection in spring and a warm layer for grassland nights.

Hulunbuir

Hulunbuir has Inner Mongolia’s longest and coldest winter. The open grasslands experience strong wind, while the northern forest zone is colder and snowier. Summer is short, green and relatively rainy.

Best season: Late June–August for grasslands, early to mid-September for autumn and December–February for snow.

Travel focus: Morigele River, Ergun Wetland, Heishantou, Manzhouli, Genhe and Moerdaoga.

Clothing focus: A jacket is necessary even in July; winter requires specialised cold-weather equipment.

Xing’an League

Xing’an League combines grasslands with Greater Khingan forests and volcanic landscapes. Arxan is cooler and wetter than Ulanhot and the surrounding lowlands.

Best season: June–September; December–February for skiing and snow.

Travel focus: Ulan Mod Grassland, Arxan National Forest Park, volcanic lakes, forests and Naadam activities.

Clothing focus: Waterproof layers and warm evening clothing throughout the summer.

Tongliao

Tongliao lies in the Horqin Plain and sandy-land region. It is warmer than Hulunbuir in summer, with windy springs, concentrated summer rainfall and cold dry winters.

Best season: May–June and September–October.

Travel focus: Horqin grassland culture, Kulun Desert, Naiman sandy landscapes and Andai dance heritage.

Clothing focus: Sun and wind protection; summer afternoons can become hot.

Chifeng

Chifeng occupies a transition zone between the Inner Mongolian Plateau, Greater Khingan Mountains and northern China’s hills and plains. Elevation ranges widely, creating substantial local temperature differences.

Most areas have annual mean temperatures of about 0–7°C and average annual precipitation around 350–450 millimetres. Summers are short with concentrated rainfall, while winters are long, cold and windy.

Best season: June–October.

Travel focus: Ulan Butong, Keshikten Global Geopark, Dali Lake, Hongshan cultural sites and hot springs.

Clothing focus: Ulan Butong and highland areas require warmer layers than Chifeng city.

Xilingol League

Xilingol is an exposed high plateau with typical grasslands and desert steppes. Wind is common throughout the year, and winter is long and cold.

Best season: July–August; early September for quieter autumn travel.

Travel focus: Xilinhot, Ujimqin grasslands, Mongolian horse culture, Naadam and Xanadu heritage.

Clothing focus: Windproof outerwear, strong sun protection and warm clothes after sunset.

Ulanqab

Ulanqab lies on an elevated plateau north of the Yinshan Mountains. Its grasslands and volcanic fields are cooler than Hohhot during summer but highly exposed to wind.

Best season: June–September.

Travel focus: Huitengxile Grassland, Huanghuagou, Ulan Hada Volcanoes and Siziwang Banner.

Clothing focus: Fleece and windbreaker for camping; nights can be cold even in midsummer.

Ordos

Ordos includes plateau, grassland, sandy land and the Kubuqi Desert. Its climate is dry and sunny, with hot summer afternoons, cool nights and relatively limited rainfall.

Best season: May–June and September–October.

Travel focus: Xiangshawan, Kangbashi, Genghis Khan Mausoleum, Ordos grasslands and Yellow River landscapes.

Clothing focus: Sun protection, closed desert footwear and an evening jacket.

Bayannur

Bayannur combines the Hetao irrigated plain, Yellow River wetlands, Yinshan and Ula mountain systems and desert margins. It is extremely sunny and dry, with windy springs and hot summers.

Best season: May–June and September.

Travel focus: Wuliangsuhai Lake, Yellow River culture, Dengkou, Ulan Buh Desert and Hetao agriculture.

Clothing focus: Wind and dust protection, moisturiser, sunglasses and sun-protective clothing.

Wuhai

Wuhai lies between the Yellow River, deserts and low mountains. Summer is hotter than on the eastern grasslands, while winters are generally less severe than in Hulunbuir and Xilingol.

Best season: April–June and September–October.

Travel focus: Wuhai Lake, desert viewpoints, vineyards and Yellow River experiences.

Clothing focus: Lightweight sun-protective clothes by day and windproof layers for lake and desert evenings.

Alxa League

Alxa is Inner Mongolia’s driest region. It contains the Tengger, Badain Jaran and Ulan Buh deserts, Gobi plains, mountains and isolated oases.

Spring has strong wind and blowing sand, summer days can be extremely hot and winter nights are very cold. Autumn generally provides the most stable combination of temperature, visibility and desert colour.

Best season: May and September–October.

Travel focus: Tengger Desert, Badain Jaran Desert, Helan Mountains, Ejin Poplar Forest and camel culture.

Clothing focus: Full sun protection, desert gaiters or closed shoes, windproof layers and warm clothing for sunrise and night.

Spring Travel Guide

Spring lasts roughly from March to May but progresses at very different speeds. Desert and Yellow River regions warm first, while Hulunbuir and the Greater Khingan forests may retain snow into April.

Spring is not the conventional grassland season. Vegetation is often still brown, wind is strong and sand or dust can reduce visibility. Its advantages are lower visitor numbers, open-river activities, desert scenery and moderate temperatures in Ordos, Wuhai and Alxa during May.

Best spring route: Hohhot–Baotou–Bayannur–Wuhai–Alxa.

Spring packing: Windproof jacket, removable warm layers, sunglasses, mask, lip balm, moisturiser and sun cream.

Summer Travel Guide

Summer from June to August is the principal grassland tourism season. Rainfall brings green pastures and wildflowers to Hulunbuir, Xing’an League and Xilingol.

July and August are also the main Naadam months. Tourist camps, flights, vehicles and popular grassland hotels should be booked well ahead.

Thunderstorms can develop quickly. Avoid standing on open ridges, beside isolated trees or near metal fences during lightning.

Best summer route: Hailar–Morigele River–Ergun–Heishantou–Manzhouli, or Hohhot–Xilingol–Ujimqin Grasslands.

Summer packing: Quick-drying clothing, sun hat, high-protection sunscreen, waterproof shell, warm jacket and insect repellent.

Autumn Travel Guide

Autumn is short but exceptionally photogenic. The peak colour moves rapidly from northeast to southwest.

Northern forests around Genhe and Arxan may begin changing in early September. Hulunbuir usually reaches strong autumn colour during September, while Ejin’s desert poplars are generally strongest from late September into October.

Cold waves may lower temperatures by more than 10°C within a short period. Frost and snow are possible in the northeast before National Day.

Best autumn route: Hailar–Ergun–Genhe–Arxan in September, or Bayannur–Wuhai–Alxa–Ejin in October.

Autumn packing: Thermal base layer, fleece, insulated jacket, gloves for sunrise photography and windproof footwear.

Winter Travel Guide

Winter lasts from November into March in much of Inner Mongolia and even longer in the northeastern forest region.

Hulunbuir offers the strongest winter landscapes, including frozen rivers, snow-covered grasslands, rime, winter Naadam and extremely cold urban experiences. Xilingol, Chifeng and Alxa provide camel events, winter pasture culture and quieter snow or desert travel.

Winter tours require professional vehicles, drivers familiar with icy roads and hotels with verified heating.

Best winter route: Hailar–Chen Barag Banner–Manzhouli–Genhe.

Winter packing: Long down coat, thermal layers, insulated trousers, snow boots, face mask, thick hat, gloves, spare batteries and insulated water bottle.

Best Travel Season by Destination

Clothing Guide by Region and Season

Main Weather Risks

Spring Sandstorms

March to May is the main period for strong wind, dust and blowing sand, particularly in Alxa, Bayannur, Wuhai, Ordos, Baotou and the exposed central plateaus.

Flights, highways and desert programmes may be delayed. Travellers with respiratory conditions should carry protective masks and medication.

Summer Thunderstorms

Most annual rainfall occurs between June and August. Grassland storms may bring lightning, hail, intense rain and sudden strong wind.

Do not ride horses, camp on exposed ridges or shelter under isolated trees during lightning warnings.

Grassland Road Conditions

Heavy summer rain can turn unpaved roads into mud. Spring thaw may also make forest and grassland routes temporarily difficult.

Four-wheel-drive vehicles are not always necessary, but experienced local drivers are essential on remote routes.

Extreme Winter Cold

Temperatures below −30°C are possible in Hulunbuir and the Greater Khingan region. Frostbite, vehicle failure and battery depletion are significant risks.

Winter itineraries should remain close to reliable roads and heated accommodation.

High Ultraviolet Exposure and Dry Air

High elevation, clear skies and low humidity produce strong ultraviolet exposure throughout the year. Sunburn is possible even in winter.

Use sunscreen, sunglasses, lip balm and moisturiser and drink water regularly.

Forest and Grassland Fire Restrictions

Dry spring weather and autumn drought increase fire danger. Open flames, outdoor cooking and smoking may be prohibited in forests, grasslands and deserts.

Follow local restrictions and never light a fire outside an authorised area.

Recommended Climate-Based Routes

Summer Hulunbuir Grassland Route

Hailar–Morigele River–Ergun–Enhe–Heishantou–Manzhouli

Travel from late June through August for green grasslands, rivers, wetlands, horses and comfortable daytime conditions.

Summer Xilingol Naadam Route

Hohhot–Ulanqab–Xilinhot–West Ujimqin Banner–Duolun

July and August provide the strongest combination of grassland scenery, horse culture and Naadam activities.

Forest and Volcano Route

Ulanhot–Ulan Mod Grassland–Arxan–Arxan National Forest Park

June to September is suitable for grasslands, volcanic lakes, forests and hot springs. September adds strong autumn colour.

Early-Autumn Greater Khingan Photography Route

Hailar–Ergun–Genhe–Moerdaoga–Shiwei–Arxan

Schedule this route in September and remain flexible because colour progression and early frost vary each year.

Western Desert and Yellow River Route

Hohhot–Baotou–Bayannur–Wuhai–Bayanhot–Tengger Desert

May, June, September and October provide better conditions than midsummer or the windy early spring.

Ejin Poplar Forest Route

Yinchuan–Bayanhot–Badain Jaran Desert–Ejin Banner

Late September to mid-October combines golden poplar forests, desert scenery and clear autumn skies. Accommodation should be reserved far in advance.

Winter Ice and Snow Route

Hailar–Chen Barag Banner–Manzhouli–Genhe

December to February provides the strongest snow and extreme-cold experience. Use a professional winter vehicle and an itinerary with flexible driving times.

Practical Weather Planning

Always check forecasts separately for each overnight location. Weather in Hohhot cannot represent Xilingol, while Hailar’s forecast does not describe conditions in Genhe’s forest valleys or on the Ergun border.

Do not judge nighttime clothing by the daytime forecast. Grassland, desert and volcanic areas lose heat rapidly after sunset.

For Hulunbuir and Arxan, carry rain protection even during the summer high season. For Alxa and the Yellow River corridor, prioritise wind, dust and sun protection.

Natural phenomena cannot be guaranteed for an exact date. Grassland greenness depends on rainfall, forest colour depends on frost and temperature, desert poplar colour changes annually and snow depth varies between winters.