Climate averages 1991–2020
Ulan Bator weather
in July.
A warm, moderately wet month: the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a warm month in Ulan Bator: daytime highs average 23.7°C and nights cool to about 11.9°C. By daytime temperature it is the warmest month of the year.
Expect about 66 mm of rain on roughly 11 days, which makes July a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 36 min on an average July day.
The nearest other city in this atlas is Darhan (189 km away). In July its highs average 27.2°C, 3.5°C warmer than Ulan Bator, with 68 mm of rain.
Among the 3 cities listed in Mongolia, Ulan Bator ranks 2nd of 3 for the warmest July highs and 1st of 3 for the driest July (rainfall, lowest first). The mean July high of those 3 cities is 24.6°C; Ulan Bator is 0.9°C cooler than that mean.
From July to August, average highs fall by 2.0°C to 21.7°C, and monthly rainfall rises from 66 mm to 68 mm.
The annual picture
July in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Ulan Bator climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -12.4°C-24.8°C | -24.8°C | 1.5 | 0.5 | 8.99 h |
| February | -7.4°C-21.2°C | -21.2°C | 2.8 | 1.2 | 10.210 h |
| March | 0.9°C-11.9°C | -11.9°C | 7.3 | 2.2 | 11.912 h |
| April | 8.8°C-3.6°C | -3.6°C | 16 | 4.3 | 13.614 h |
| May | 15.8°C1.7°C | 1.7°C | 34 | 6.7 | 15.115 h |
| June | 21.4°C8.4°C | 8.4°C | 55 | 9.5 | 16.016 h |
| July, selected | 23.7°C11.9°C | 11.9°C | 66 | 11.2 | 15.616 h |
| August | 21.7°C9.8°C | 9.8°C | 68 | 10.7 | 14.314 h |
| September | 15.6°C3.0°C | 3.0°C | 39 | 7.2 | 12.613 h |
| October | 6.5°C-4.1°C | -4.1°C | 15 | 3.8 | 10.911 h |
| November | -3.7°C-13.5°C | -13.5°C | 6.1 | 2.1 | 9.39 h |
| December | -10.8°C-20.9°C | -20.9°C | 2.1 | 0.9 | 8.58 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Darhan in JulyMongolia · 189 kmHigh 27.2°C · Low 15.9°C · 68 mm rain
- Erdenet in JulyMongolia · 241 kmHigh 22.9°C · Low 12.9°C · 91 mm rain
- Ulan-Ude in JulyRussia · 439 kmHigh 25.9°C · Low 14.4°C · 53 mm rain
- Irkutsk in JulyRussia · 522 kmHigh 24.6°C · Low 14.0°C · 94 mm rain
- Angarsk in JulyRussia · 559 kmHigh 25.2°C · Low 14.6°C · 82 mm rain
- Usol’ye-Sibirskoye in JulyRussia · 585 kmHigh 25.0°C · Low 14.8°C · 88 mm rain
- Chita in JulyRussia · 659 kmHigh 25.0°C · Low 14.2°C · 83 mm rain
- Bayan Nur in JulyChina · 798 kmHigh 31.7°C · Low 19.0°C · 45 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Ulan Bator) is explained once on the Ulan Bator year overview and on the Sources, method and limits page.