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Jiayuguan Weather by Month
Average temperatures, rainfall and humidity for Jiayuguan, China, month by month, built from OpenWeather's historical records. Use it to see what a typical Jiayuguan month looks like before you travel — then check the live Jiayuguan forecast for the days ahead.
Warmest month
July
27°C average high
Coolest month
January
-14°C average low
Wettest month
June
22 mm of rain
Driest month
January
0 mm of rain
Average temperature and rainfall in Jiayuguan by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | -3°C | -14°C | -34°C / 10°C | 0 mm | 56% | 8 km/h |
| February | 0°C | -12°C | -31°C / 14°C | 0 mm | 55% | 8 km/h |
| March | 8°C | -4°C | -22°C / 22°C | 1 mm | 49% | 10 km/h |
| April | 14°C | 3°C | -14°C / 29°C | 11 mm | 42% | 13 km/h |
| May | 20°C | 9°C | -7°C / 35°C | 15 mm | 35% | 14 km/h |
| June | 23°C | 14°C | 2°C / 34°C | 22 mm | 41% | 12 km/h |
| July | 27°C | 17°C | 6°C / 39°C | 20 mm | 41% | 12 km/h |
| August | 26°C | 16°C | 3°C / 37°C | 22 mm | 43% | 11 km/h |
| September | 21°C | 9°C | -4°C / 33°C | 11 mm | 42% | 10 km/h |
| October | 13°C | 1°C | -21°C / 26°C | 2 mm | 44% | 9 km/h |
| November | 4°C | -7°C | -24°C / 18°C | 0 mm | 49% | 9 km/h |
| December | -3°C | -12°C | -34°C / 10°C | 0 mm | 56% | 8 km/h |
Best time to visit Jiayuguan
The most comfortable time to visit Jiayuguan is generally June and August to September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rainfall is spread evenly across the months, totalling about 105 mm a year.
Travellers who prefer heat should aim for July, when highs average 27°C. June is the month to avoid if rain would spoil your plans — it averages 22 mm, roughly 22× the rainfall of January.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Jiayuguan forecast for what is happening now.