Mongolia in August has warm conditions, with highs averaging 21.1°C (70°F). Rain falls on about 12 days this month. Temperatures drop noticeably between day and night.
This month falls at the end of Summer.
Temperature
21°C / 11°C
Mongolia Weather in August 2026
Monthly climate averages for Ulan Bator. Based on 10-year ERA5 reanalysis data.
Dwb Warm-Summer Continental (monsoon)
Climate Overview
Compared to July, this month is about 3°C cooler with 1 fewer rainy days. Temperatures begin dropping heading into September.
Monthly August Averages
Feels Like
20°C / 10°C
Rain
12 days · 81 mm
Sunshine
10.8h / day
Humidity
73% — Humid
Wind
14 km/h
Wind Direction
N (350°)
Gusts
35 km/h
Daylight
14.3 h
Cloud Cover
57%
Clear Sky Days
3
Dew Point
11°C — Comfortable
Moon Phase
Waxing Crescent · 3%
Seasonal Demand
Busy (4/5)
Sun Position
Sunrise 05:48
Daylight 14.3h
Sunset 20:09
What to Expect
Daytime temperatures around 21°C (70°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.
Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.
Weather conditions this month are among the best of the year, making it a popular time for outdoor activities.
Pros
- Comfortable temperatures for sightseeing
- Abundant sunshine for exploring and outdoor fun
- One of the best months to visit
Cons
- Popular month due to favourable weather conditions
What to Wear
Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions. A waterproof jacket and shoes are non-negotiable — showers are frequent.
Packing List
Warm evening layerUmbrellaWaterproof jacketSunscreen (SPF 30+)SunglassesComfortable walking shoes
Compare Months
January
Poor 
February
Poor March
Poor April
Poor May
Fair June best
Excellent July best
Excellent August best
Excellent September
Fair October
Poor November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | Status | Details |
|---|---|---|---|---|---|---|---|
| January | -14°C / -26°C | -19°C / -31°C | 1days (2 mm) Excellent | 7.8h Good | 74% Muggy | Poor | View Details |
| February | -10°C / -23°C | -15°C / -28°C | 1days (3 mm) Excellent | 9.4h Good | 70% Muggy | Poor | View Details |
| March | 1°C / -12°C | -4°C / -17°C | 3days (8 mm) Excellent | 10.7h Excellent | 55% Moderate | Poor | View Details |
| April | 10°C / -3°C | 5°C / -8°C | 4days (16 mm) Good | 11.5h Excellent | 45% Moderate | Poor | View Details |
| May | 16°C / 3°C | 12°C / -1°C | 6days (29 mm) Good | 12h Excellent | 50% Moderate | Fair | View Details |
| June best | 22°C / 9°C | 20°C / 7°C | 10days (53 mm) Wet | 12.4h Excellent | 60% Moderate | Excellent | View Details |
| July best | 24°C / 13°C | 24°C / 12°C | 13days (77 mm) Wet | 11.4h Excellent | 68% Muggy | Excellent | View Details |
| August best | 21°C / 11°C | 20°C / 10°C | 12days (81 mm) Wet | 10.8h Excellent | 73% Muggy | Excellent | View Details |
| September | 17°C / 5°C | 14°C / 2°C | 8days (39 mm) Wet | 10.1h Excellent | 66% Muggy | Fair | View Details |
| October | 7°C / -5°C | 2°C / -10°C | 3days (14 mm) Excellent | 9.1h Good | 62% Muggy | Poor | View Details |
| November | -4°C / -16°C | -9°C / -20°C | 4days (11 mm) Good | 7.9h Good | 71% Muggy | Poor | View Details |
| December | -15°C / -25°C | -20°C / -30°C | 1days (4 mm) Excellent | 7.4h Good | 73% Muggy | Poor | View Details |
Frequently Asked Questions
August is typically excellent for visiting Mongolia, with average highs of 21°C (70°F) and around 12 rainy days. Mongolia in August has warm conditions, with highs averaging 21.1°C (70°F). Rain falls on about 12 days this month. Temp
Mongolia typically sees around 12 rainy days in August with 81 mm (3.2 in) of total rainfall. Pack a waterproof jacket.
With highs of 21°C (70°F) and lows of 11°C (52°F) in August, we recommend: Warm evening layer, Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses. Comfortable walking shoes are essential.
Yes, August offers some of the best weather conditions in Mongolia with comfortable temperatures and lower chances of rain.
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