Altai weather by month & the best time to visit
Mongolia · small town · semi-arid climate
The best time to visit Altai is June — its sunniest month (Sunshine Score 92/100), with July and August close behind. Altai averages about 3,327 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 40 mm of rain in June.
When is the best time to visit Altai?
For sunshine, the best time to visit Altai is June, then July and August. The dullest month is January (0/100, 3 mm of rain). The full month-by-month picture is in the table below.
How sunny is Altai?
Altai is one of the sunniest places on Earth: about 3,327 hours of sunshine a year. 92 Sunshine Score points separate June (92) from January (0), so the month you pick matters. It ranks #2 of 12 destinations in Mongolia for annual sunshine, above the national median of 3,222 hours. Rain is strongly seasonal here: roughly 62% of the year's 187 mm falls in the three months around July.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -14° / 7°F | -25° / -13°F | 3 mm | 1 |
| February | 0 | -9° / 16°F | -23° / -9°F | 4 mm | 2 |
| March | 0 | -1° / 30°F | -14° / 7°F | 6 mm | 4 |
| April | 0 | 8° / 46°F | -5° / 23°F | 9 mm | 6 |
| May | 56 | 15° / 59°F | 0° / 32°F | 16 mm | 7 |
| June | 92 | 21° / 70°F | 7° / 45°F | 40 mm | 8 |
| July | 92 | 23° / 73°F | 9° / 48°F | 39 mm | 8 |
| August | 92 | 21° / 70°F | 7° / 45°F | 37 mm | 7 |
| September | 48 | 14° / 57°F | 0° / 32°F | 15 mm | 5 |
| October | 0 | 5° / 41°F | -7° / 19°F | 9 mm | 3 |
| November | 0 | -4° / 25°F | -15° / 5°F | 5 mm | 1 |
| December | 0 | -12° / 10°F | -23° / -9°F | 4 mm | 1 |
Nearest destinations
Altai: questions and answers
What kind of destination is Altai?
Altai is a small town in Mongolia at 2,203 m elevation with a semi-arid climate.
How many hours of sunshine does Altai get a year?
Altai gets about 3,327 hours of sunshine a year, at its best around June.
When is the best time to visit Altai?
The sunniest time to visit Altai is June, when the Sunshine Score peaks at 92/100 (with July and August close behind). Expect daytime highs around 21°C / 70°F.
What is the least sunny month in Altai?
January is the least sunny month in Altai, scoring 0/100 with about 3 mm of rain.
How strong is the sun in Altai?
The typical midday UV index in Altai peaks around 8 (very high) in June, easing to about 1 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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