Onon-Balj National Park

National Park Protected Mongolian park preserving steppe and river ecosystems

Onon‑Balj National Park protects river valleys and forest‑steppe along the Onon River; visitors hike, ride horses and study nomadic landscapes and birdlife.

Main image
Onon-Balj National Park
49.2467, 111.7581

How to Get to Onon-Balj National Park #

The park is in eastern Mongolia; access typically requires a drive from the nearest regional towns and, depending on location within the protected area, sometimes a local 4x4 and a guide. Coordinate with Mongolian tour operators for logistics and permits.

Tips for Visiting Onon-Balj National Park #

  • Hire a local guide to navigate trails and explain the cultural significance of rivers and gers in the area.
  • Pack layered clothing-the steppe and mountain zones can have large daily temperature swings.
  • If horseback riding is desired, book through a registered local outfitter; riding is one of the best ways to experience remote valleys.

Best Time to Visit Onon-Balj National Park #

Best visited in summer for accessible trails, milder weather and clear skies.

Summer
June-August · 10-25°C (50-77°F)
Warm days and accessible trails; wildflowers in alpine meadows.
Spring/Autumn
May & September-October · 0-15°C (32-59°F)
Cooler, fewer insects; good for birdwatching and fewer visitors.
Winter
November-April · -20-0°C (-4-32°F)
Harsh snow and frozen rivers-only for prepared, experienced travelers.

Weather & Climate near Onon-Balj National Park #

Climate

Onon-Balj National Park's climate is classified as Warm-Summer Continental (Dry Winter) - Warm-Summer Continental (Dry Winter) climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -27°C to 24°C. Semi-arid with limited rainfall with a pronounced dry season.

Air Quality: AQI 41 Good
Best Time to Visit
MaySeptemberJuly
Temperature & Rainfall
Temperature Range
39°
Warmest Month
-39°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of -14°C and lows of -27°C. The driest month with just 2 mm and partly cloudy skies.

46 Poor

Comfort

-21°
Feels Like Freezing
-21°C
Temperature
-27° -14°
86%
Humidity
Very Humid

Weather

2 mm
Rainfall
2.0 m/s
Wind
Calm
0.1
UV Index
Low
8.5h daylight

February

February is freezing with highs of -9°C and lows of -24°C. The driest month with just 2 mm and partly cloudy skies.

46 Poor

Comfort

-17°
Feels Like Freezing
-17°C
Temperature
-25° -9°
79%
Humidity
Very Humid

Weather

2 mm
Rainfall
2.1 m/s
Wind
Calm
0.2
UV Index
Low
9.9h daylight

March

March is freezing with highs of 0°C and lows of -16°C. Almost no rain and partly cloudy skies.

46 Poor

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-16°
65%
Humidity
Humid

Weather

3 mm
Rainfall
2.8 m/s
Wind
Calm
0.6
UV Index
Moderate
11.7h daylight

April

April is cold with highs of 9°C and lows of -6°C. Light rainfall and partly cloudy skies.

64 Good

Comfort

Feels Like Cold
C
Temperature
-7°
51%
Humidity
Humid

Weather

12 mm
Rainfall
3.6 m/s
Wind
Light Breeze
1.0
UV Index
High
13.6h daylight

May

May is cold with highs of 18°C and lows of 1°C. Light rainfall and partly cloudy skies.

74 Very Good

Comfort

10°
Feels Like Cold
10°C
Temperature
18°
47%
Humidity
Comfortable

Weather

25 mm
Rainfall
3.3 m/s
Wind
Light Breeze
1.4
UV Index
High
15.2h daylight

June

June is cool with highs of 23°C and lows of 8°C. Moderate rainfall (54 mm) and mostly overcast skies.

65 Good

Comfort

15°
Feels Like Cool
15°C
Temperature
23°
52%
Humidity
Humid

Weather

54 mm
Rainfall
2.5 m/s
Wind
Calm
1.6
UV Index
Very High
16.0h daylight

July

July is cool with highs of 24°C and lows of 11°C. The wettest month with heavy rain (110 mm) and mostly overcast skies.

69 Good

Comfort

17°
Feels Like Cool
17°C
Temperature
11° 24°
60%
Humidity
Humid

Weather

110 mm
Rainfall
1.9 m/s
Wind
Calm
1.6
UV Index
Very High
15.6h daylight

August

August is cool with highs of 22°C and lows of 8°C. Regular rainfall (90 mm) and partly cloudy skies.

65 Good

Comfort

15°
Feels Like Cool
15°C
Temperature
22°
61%
Humidity
Humid

Weather

90 mm
Rainfall
1.9 m/s
Wind
Calm
1.4
UV Index
High
14.2h daylight

September

September is cold with highs of 16°C and lows of 1°C. Moderate rainfall (42 mm) and partly cloudy skies.

73 Very Good

Comfort

Feels Like Cold
C
Temperature
16°
61%
Humidity
Humid

Weather

42 mm
Rainfall
2.3 m/s
Wind
Calm
0.9
UV Index
Moderate
12.4h daylight

October

October is freezing with highs of 7°C and lows of -8°C. Light rainfall and partly cloudy skies.

59 Acceptable

Comfort

Feels Like Freezing
C
Temperature
-8°
64%
Humidity
Humid

Weather

10 mm
Rainfall
2.4 m/s
Wind
Calm
0.4
UV Index
Low
10.6h daylight

November

November is freezing with highs of -4°C and lows of -18°C. Almost no rain and partly cloudy skies.

50 Acceptable

Comfort

-11°
Feels Like Freezing
-11°C
Temperature
-18° -4°
75%
Humidity
Very Humid

Weather

4 mm
Rainfall
2.3 m/s
Wind
Calm
0.1
UV Index
Low
8.9h daylight

December

December is freezing with highs of -12°C and lows of -24°C. Almost no rain and partly cloudy skies.

46 Poor

Comfort

-18°
Feels Like Freezing
-18°C
Temperature
-25° -12°
84%
Humidity
Very Humid

Weather

3 mm
Rainfall
2.1 m/s
Wind
Calm
0.1
UV Index
Low
8.0h daylight

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