Mongolia · 47.89°N 106.91°E · 30-year monthly averages, judged against the Warm preset (highs 19–28 °C66–82 °F, dry or showers)
The best time to visit Ulaanbaatar is June to August, with highs of 21–23 °C70–73 °F and nights of 8–11 °C46–52 °F, and rainfall of 56–72 mm2.2–2.8 in a month.
Rain is spread across the year, 0–72 mm0–2.8 in a month. July is the wettest month and January the driest. July is the hottest month (highs of 23 °C73 °F) and January the coldest (-16 °C3 °F); nights are below freezing from October to April.
The figures are 30-year monthly averages (WorldClim 2.1 monthly normals 1970–2000) for the 0.25° grid cell at 47.89, 106.91. This is a climate guide, not a forecast.
Pick the weather you like. Every month is then judged against it: temperature above the month names, rain below.
Good time to go for a Warm holiday: June to August.
Open Ulaanbaatar on the interactive map ↗ the same verdicts for any place on Earth, in any month
Reading the chart. Gold means good: the month fits what you picked. Any other colour shows the reason it does not. The temperature bar can be too cold or too hot; the rain bar can be too dry, too rainy or monsoon. A faded gold bar means that half fits but the other half does not. A gold month name means both halves fit.
What the verdicts mean. Temperature is the month's average daily high (the afternoon), judged against the preset's band (highs 19–28 °C66–82 °F for Warm). Rain is judged by each month's class within Ulaanbaatar's own year, not by raw millimetres: dry under 60 mm2.4 in, showers 60–100 mm2.4–3.9 in, rainy from 100 mm3.9 in and at least 35 % of the wettest month. Too rainy is a rainy-season month that the preset does not allow. Monsoon is the heaviest kind of rainy season: 180 mm7.1 in or more (120 mm4.7 in near the yearly peak) in a climate where the wettest month has at least three times the rain of the driest. Every monsoon month is also a rainy-season month; the label says which kind. Full rules on the method page.
| Month | Rain | High | Low | Season | Warm verdict |
|---|---|---|---|---|---|
| January | 00 | -163 | -28-19 | dry | too cold |
| February | 00 | -1112 | -26-15 | dry | too cold |
| March | 00 | -228 | -171 | dry | too cold |
| April | 80.3 | 846 | -719 | dry | too cold |
| May | 160.6 | 1762 | 134 | dry | too cold |
| June | 562.2 | 2272 | 846 | dry | good |
| July | 722.8 | 2373 | 1151 | showers | good |
| August | 722.8 | 2170 | 846 | showers | good |
| September | 321.3 | 1559 | 133 | dry | too cold |
| October | 80.3 | 744 | -817 | dry | too cold |
| November | 00 | -522 | -19-2 | dry | too cold |
| December | 00 | -138 | -25-14 | dry | too cold |
| Looking for | Rule | Months that fit |
|---|---|---|
| Warm | highs 19–28 °C66–82 °F, dry or showers | June to August |
| Tropical | highs 28–38 °C82–100 °F, any rain except monsoon | |
| Beach | highs 28–38 °C82–100 °F, dry or showers | |
| Cool | highs 3–19 °C37–66 °F, any rain except monsoon | April to May and September to October |
| Snow | highs below 3 °C37 °F, any rain | November to March |
Not a clear one. Rain is spread across the year, 0–72 mm0–2.8 in a month. July is the wettest month and January the driest.
July is the hottest month (highs of 23 °C73 °F) and January the coldest (-16 °C3 °F); nights are below freezing from October to April. Annual rainfall is about 264 mm10 in.
The nearest destinations that fit the Warm preset in the months when Ulaanbaatar does not:
The interactive map colours the whole world by how well it fits the weather you like, in any month, and shows this chart for any place you tap.