Climate averages 1991–2020
Xi’an weather
in August.
A hot, wet month: the 3rd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Xi’an: daytime highs average 29.8°C and nights cool to about 20.8°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 129 mm of rain on roughly 11 days, which makes August a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 26 min on an average August day.
The nearest other city in this atlas is Xianyang (23 km away). In August its highs average 29.7°C, about as warm as Xi’an, with 138 mm of rain.
Among the 884 cities listed in China, Xi’an ranks joint 475th of 884 for the warmest August highs and joint 173rd of 884 for the driest August (rainfall, lowest first). The mean August high of those 884 cities is 29.3°C; Xi’an is 0.5°C warmer than that mean.
From August to September, average highs fall by 5.2°C to 24.6°C, and monthly rainfall rises from 129 mm to 133 mm.
The annual picture
August in context
Monthly rainfall
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
Xi’an climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.8°C-3.6°C | -3.6°C | 13 | 3.2 | 10.110 h |
| February | 9.6°C-1.0°C | -1.0°C | 18 | 4.2 | 10.911 h |
| March | 15.3°C3.7°C | 3.7°C | 33 | 6.0 | 11.912 h |
| April | 21.7°C9.3°C | 9.3°C | 46 | 7.0 | 13.013 h |
| May | 26.2°C14.2°C | 14.2°C | 71 | 8.2 | 13.914 h |
| June | 30.2°C18.8°C | 18.8°C | 93 | 7.3 | 14.414 h |
| July | 31.2°C21.6°C | 21.6°C | 144 | 10.7 | 14.214 h |
| August, selected | 29.8°C20.8°C | 20.8°C | 129 | 10.6 | 13.413 h |
| September | 24.6°C16.0°C | 16.0°C | 133 | 11.7 | 12.412 h |
| October | 19.0°C10.1°C | 10.1°C | 81 | 10.0 | 11.411 h |
| November | 13.0°C3.4°C | 3.4°C | 40 | 6.6 | 10.410 h |
| December | 7.3°C-2.2°C | -2.2°C | 13 | 3.3 | 9.910 h |
Rainfall is the average of the 30 separate monthly totals. A rain 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
August in nearby cities
- Xianyang in AugustChina · 23 kmHigh 29.7°C · Low 20.9°C · 138 mm rain
- Lintong in AugustChina · 29 kmHigh 31.3°C · Low 21.7°C · 93 mm rain
- Weinan in AugustChina · 60 kmHigh 31.3°C · Low 21.7°C · 105 mm rain
- Tongchuan in AugustChina · 71 kmHigh 28.9°C · Low 20.2°C · 109 mm rain
- Tongchuanshi in AugustChina · 92 kmHigh 28.4°C · Low 20.0°C · 109 mm rain
- Shangluo in AugustChina · 102 kmHigh 27.5°C · Low 19.9°C · 114 mm rain
- Huayin in AugustChina · 110 kmHigh 30.9°C · Low 22.2°C · 199 mm rain
- Guozhen in AugustChina · 145 kmHigh 29.3°C · Low 20.2°C · 181 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 Xi’an) is explained once on the Xi’an year overview and on the Sources, method and limits page.