Jiayuguan weather by month & the best time to visit
China · regional city · cold desert climate

The best time to visit Jiayuguan is May — its sunniest month (Sunshine Score 95/100), with August and September close behind. Jiayuguan averages about 2,993 hours of sunshine a year. Daytime highs around 24°C / 75°F and roughly 11 mm of rain in May.
When is the best time to visit Jiayuguan?
For sunshine, the best time to visit Jiayuguan is May, then August and September. The dullest month is January (0/100, 2 mm of rain). The full month-by-month picture is in the table below.
How sunny is Jiayuguan?
Jiayuguan gets a lot of sun: around 2,993 hours a year. 95 Sunshine Score points separate May (95) from January (0), so the month you pick matters. It ranks #40 of 254 destinations in China for annual sunshine, above the national median of 2,110 hours. Rain has a clear season: the wettest stretch, around July, carries about 60% of the annual 109 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -2° / 28°F | -12° / 10°F | 2 mm | 2 |
| February | 0 | 2° / 36°F | -8° / 18°F | 1 mm | 3 |
| March | 16 | 10° / 50°F | -3° / 27°F | 4 mm | 4 |
| April | 80 | 18° / 64°F | 4° / 39°F | 5 mm | 6 |
| May | 95 | 24° / 75°F | 10° / 50°F | 11 mm | 7 |
| June | 92 | 30° / 86°F | 16° / 61°F | 24 mm | 8 |
| July | 92 | 32° / 90°F | 19° / 66°F | 24 mm | 8 |
| August | 94 | 30° / 86°F | 17° / 63°F | 17 mm | 8 |
| September | 94 | 24° / 75°F | 11° / 52°F | 13 mm | 6 |
| October | 64 | 16° / 61°F | 3° / 37°F | 3 mm | 4 |
| November | 0 | 7° / 45°F | -4° / 25°F | 2 mm | 2 |
| December | 0 | -1° / 30°F | -10° / 14°F | 3 mm | 1 |
Nearest destinations
Head-to-head
How Jiayuguan compares month by month: Jiayuguan vs Xining · Jiayuguan vs Hami · Jiayuguan vs Dunhuang · all comparisons
Jiayuguan: questions and answers
What kind of destination is Jiayuguan?
Jiayuguan is a regional city in China at 1,556 m elevation with a cold desert climate.
How many hours of sunshine does Jiayuguan get a year?
Jiayuguan gets about 2,993 hours of sunshine a year, at its best around May.
When is the best time to visit Jiayuguan?
The sunniest time to visit Jiayuguan is May, when the Sunshine Score peaks at 95/100 (with August and September close behind). Expect daytime highs around 24°C / 75°F.
What is the least sunny month in Jiayuguan?
January is the least sunny month in Jiayuguan, scoring 0/100 with about 2 mm of rain.
How strong is the sun in Jiayuguan?
The typical midday UV index in Jiayuguan peaks around 8 (very high) in June, easing to about 1 (low) in December. Month-by-month midday UV values are in the UV column of the table on this page.
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