Buir Nur

Lake Transboundary freshwater lake on the Mongolia–China border

Freshwater lake on Mongolia’s eastern steppe, bordering China in places, set amid grassy plains. Birdwatchers and anglers visit for waterfowl, fishing camps and open landscape.

Main image
Буйр нуур -Дорнод аймаг Халхгол сум - panoramio.jpg

Buir Nur is a freshwater lake in eastern Mongolia, commonly referred to as Buir Lake, located near the international border with the People’s Republic of China. It is one of the larger lakes in Mongolia and an important local landscape feature.

The lake and its shoreline wetlands provide habitat for migratory and resident waterbirds and are used locally for fishing and grazing. The surrounding landscape is steppe and open country typical of Mongolia’s eastern plains.

Buir Nur has long been part of the seasonal resource base for local herding communities and features in regional geography and land use patterns; it has not been heavily developed and remains largely natural in character.

The lake lies in eastern Mongolia, close to the Mongolia-China border within Mongolia’s eastern provinces, set in a broad steppe landscape.

  • Ecology: Buir Nur (Buir Lake) is an important wetland for migratory waterbirds and supports freshwater fishing and local pastoralist activities.
Buir Nur
Buir Nur (Buir Lake), on the Mongolia-China border (Dornod Province region)
47.8000, 117.7000

How to Get to Buir Nur #

Regional access is from the Mongolian town of Choibalsan or from nearby border crossings; local transport options are limited and private arrangements are usually required.

Tips for Visiting Buir Nur #

  • If planning a visit to the lake's shores, arrange transport and local permissions in advance - the area is remote
  • Bring insect repellent during warmer months; mosquitoes can be abundant at lakes
  • Combine a trip with regional cultural visits in Dornod province or the nearby town of Choibalsan

Best Time to Visit Buir Nur #

Summer months are most convenient for access and lake activities; winter brings freezing conditions and limited access.

Summer
June-August · 15-25°C
Warmest and most accessible time for lakeside visits and boat activities.
Late Spring-Early Autumn
May & September · 8-18°C
Shoulder seasons with fewer insects but more variable weather.

Weather & Climate near Buir Nur #

Climate

Buir Nur's climate is classified as Cold Semi-Arid - Cold Semi-Arid climate with warm summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -27°C to 25°C. Very dry conditions with minimal rainfall with a pronounced dry season.

Best Time to Visit
AugustJulySeptember
Temperature & Rainfall
Temperature Range
41°
Warmest Month
-41°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of -16°C and lows of -27°C. The driest month with just 2 mm and partly cloudy skies.

46 Poor

Comfort

-22°
Feels Like Freezing
-22°C
Temperature
-27° -16°
88%
Humidity
Very Humid

Weather

2 mm
Rainfall
2.8 m/s
Wind
Calm
0.1
UV Index
Low
8.8h daylight

February

February is freezing with highs of -12°C and lows of -25°C. The driest month with just 2 mm.

48 Poor

Comfort

-19°
Feels Like Freezing
-19°C
Temperature
-25° -12°
83%
Humidity
Very Humid

Weather

2 mm
Rainfall
2.9 m/s
Wind
Calm
0.4
UV Index
Low
10.1h daylight

March

March is freezing with highs of -4°C and lows of -16°C. The driest month with just 2 mm and partly cloudy skies.

51 Acceptable

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-16° -4°
65%
Humidity
Humid

Weather

2 mm
Rainfall
3.6 m/s
Wind
Light Breeze
0.7
UV Index
Moderate
11.8h daylight

April

April is cold with highs of 7°C and lows of -4°C. Light rainfall and partly cloudy skies.

62 Good

Comfort

Feels Like Cold
C
Temperature
-5°
47%
Humidity
Comfortable

Weather

10 mm
Rainfall
4.6 m/s
Wind
Light Breeze
1.1
UV Index
High
13.5h daylight

May

May is cold with highs of 15°C and lows of 4°C. Light rainfall and partly cloudy skies.

72 Very Good

Comfort

10°
Feels Like Cold
10°C
Temperature
15°
45%
Humidity
Comfortable

Weather

13 mm
Rainfall
4.4 m/s
Wind
Light Breeze
1.6
UV Index
Very High
14.9h daylight

June

June is cool with highs of 23°C and lows of 11°C. Moderate rainfall (34 mm) and partly cloudy skies.

78 Very Good

Comfort

17°
Feels Like Cool
17°C
Temperature
11° 23°
50%
Humidity
Humid

Weather

34 mm
Rainfall
3.5 m/s
Wind
Light Breeze
1.8
UV Index
Very High
15.7h daylight

July

July is the warmest month with highs of 25°C and lows of 15°C. The wettest month with 73 mm of rain and partly cloudy skies.

82 Excellent

Comfort

20°
Feels Like Mild
20°C
Temperature
15° 25°
56%
Humidity
Humid

Weather

73 mm
Rainfall
3.0 m/s
Wind
Light Breeze
1.9
UV Index
Very High
15.3h daylight

August

August is mild with highs of 23°C and lows of 13°C. Moderate rainfall (62 mm).

83 Excellent

Comfort

18°
Feels Like Mild
18°C
Temperature
13° 23°
56%
Humidity
Humid

Weather

62 mm
Rainfall
2.9 m/s
Wind
Calm
1.7
UV Index
Very High
14.1h daylight

September

September is cool with highs of 17°C and lows of 6°C. Light rainfall.

80 Excellent

Comfort

11°
Feels Like Cool
11°C
Temperature
17°
56%
Humidity
Humid

Weather

26 mm
Rainfall
3.4 m/s
Wind
Light Breeze
1.1
UV Index
High
12.4h daylight

October

October is cold with highs of 8°C and lows of -2°C. Almost no rain.

64 Good

Comfort

Feels Like Cold
C
Temperature
-2°
61%
Humidity
Humid

Weather

8 mm
Rainfall
3.5 m/s
Wind
Light Breeze
0.5
UV Index
Moderate
10.7h daylight

November

November is freezing with highs of -4°C and lows of -14°C. Almost no rain and partly cloudy skies.

51 Acceptable

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-14° -4°
73%
Humidity
Very Humid

Weather

4 mm
Rainfall
3.3 m/s
Wind
Light Breeze
0.2
UV Index
Low
9.2h daylight

December

December is freezing with highs of -14°C and lows of -23°C. The driest month with just 2 mm and partly cloudy skies.

47 Poor

Comfort

-18°
Feels Like Freezing
-18°C
Temperature
-23° -14°
87%
Humidity
Very Humid

Weather

2 mm
Rainfall
3.0 m/s
Wind
Light Breeze
0.1
UV Index
Low
8.3h daylight

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