Climate averages 1991–2020
Darhan weather
in May.
A mild, fairly dry month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Darhan: daytime highs average 19.1°C and nights cool to about 4.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 33 mm of rain on roughly 6 days, which makes May a fairly dry month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 19 min on an average May day.
The nearest other city in this atlas is Erdenet (143 km away). In May its highs average 15.6°C, 3.5°C cooler than Darhan, with 35 mm of rain.
Among the 3 cities listed in Mongolia, Darhan ranks 1st of 3 for the warmest May highs and 1st of 3 for the driest May (rainfall, lowest first). The mean May high of those 3 cities is 16.8°C; Darhan is 2.3°C warmer than that mean.
From May to June, average highs rise by 6.3°C to 25.4°C, and monthly rainfall rises from 33 mm to 51 mm.
The annual picture
May 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
Darhan climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -12.9°C-24.8°C | -24.8°C | 1.6 | 0.5 | 8.79 h |
| February | -6.8°C-21.4°C | -21.4°C | 2.5 | 0.7 | 10.110 h |
| March | 3.1°C-9.9°C | -9.9°C | 6.7 | 2.1 | 11.912 h |
| April | 11.9°C-1.6°C | -1.6°C | 18 | 4.2 | 13.714 h |
| May, selected | 19.1°C4.5°C | 4.5°C | 33 | 6.3 | 15.315 h |
| June | 25.4°C12.6°C | 12.6°C | 51 | 8.3 | 16.216 h |
| July | 27.2°C15.9°C | 15.9°C | 68 | 10.7 | 15.816 h |
| August | 24.6°C13.4°C | 13.4°C | 78 | 10.4 | 14.414 h |
| September | 17.9°C6.2°C | 6.2°C | 39 | 7.4 | 12.713 h |
| October | 8.6°C-2.3°C | -2.3°C | 18 | 3.9 | 10.811 h |
| November | -2.3°C-11.7°C | -11.7°C | 8.2 | 2.6 | 9.29 h |
| December | -10.8°C-20.6°C | -20.6°C | 4.1 | 1.5 | 8.28 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
May in nearby cities
- Erdenet in MayMongolia · 143 kmHigh 15.6°C · Low 2.7°C · 35 mm rain
- Ulan Bator in MayMongolia · 189 kmHigh 15.8°C · Low 1.7°C · 34 mm rain
- Ulan-Ude in MayRussia · 286 kmHigh 17.1°C · Low 3.1°C · 31 mm rain
- Irkutsk in MayRussia · 333 kmHigh 16.8°C · Low 3.3°C · 38 mm rain
- Angarsk in MayRussia · 369 kmHigh 17.4°C · Low 3.6°C · 33 mm rain
- Usol’ye-Sibirskoye in MayRussia · 396 kmHigh 17.2°C · Low 3.7°C · 34 mm rain
- Chita in MayRussia · 603 kmHigh 16.5°C · Low 2.9°C · 39 mm rain
- Bratsk in MayRussia · 793 kmHigh 10.9°C · Low 1.9°C · 38 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 Darhan) is explained once on the Darhan year overview and on the Sources, method and limits page.