Xining weather in September
In September, Xining has an average high of 20 °C68 °F and an average low of 7 °C44 °F, with about 83 mm3.3 in of precipitation. It is the 5th warmest month of the year and ranks 3rd for precipitation.
How September compares with other months
Compared with August, September is 4.9 °C8.8 °F cooler on average and drier by 24 mm1.0 in. Compared with October, September is 5.7 °C10.3 °F warmer on average and wetter by 56 mm2.2 in. Daylight lasts about 12.4 hours around the middle of the month. Average relative humidity is 70% and the average cloud amount 71%.
Is September a good time to visit Xining?
Yes — September is one of the most comfortable months to visit Xining by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in September
For Xining in September, pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
September in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Xining | 2068 | 744 | 833.3 |
| Qiaotou | 1865 | 642 | 873.4 |
| Nianbo | 2170 | 847 | 763.0 |
| Tongren | 2068 | 643 | 883.5 |
| Wuwei | 2373 | 1152 | 481.9 |
| Linxia Chengguanzhen | 2272 | 949 | 793.1 |
| Lanzhou | 2475 | 1152 | 612.4 |
| Jinchang | 2374 | 1151 | 321.3 |
| Baiyin | 2272 | 949 | 481.9 |
Nearby places that are more than 1 °C1.8 °F warmer in September: Nianbo, Wuwei, Linxia Chengguanzhen and Lanzhou; cooler: Qiaotou.
Other months in Xining
- January2 °C36 °F / −12 °C10 °F
- February6 °C43 °F / −8 °C17 °F
- March11 °C52 °F / −4 °C25 °F
- April17 °C63 °F / 1 °C33 °F
- May21 °C70 °F / 5 °C42 °F
- June25 °C76 °F / 10 °C50 °F
- July26 °C79 °F / 12 °C54 °F
- August25 °C77 °F / 11 °C53 °F
- September20 °C68 °F / 7 °C44 °F
- October15 °C59 °F / 1 °C33 °F
- November8 °C47 °F / −5 °C23 °F
- December3 °C38 °F / −11 °C12 °F
Frequently asked questions
How warm is Xining in September?
In September the average high in Xining is 20 °C (68 °F) and the average low is 7 °C (44 °F).
Does it rain a lot in Xining in September?
On average about 83 mm (3.3 in) of precipitation falls in September; it ranks 3rd of the 12 months.
Is September the warmest month in Xining?
No. The warmest month in Xining is July, with an average high of 26 °C (79 °F). The coldest month is January, with an average low of -12 °C (10 °F).
How long is the day in Xining in September?
In the middle of September the day in Xining lasts about 12.4 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Xining in September?
The average relative humidity in September is about 70%. This is a long-term average for the whole day.
How cloudy is Xining in September?
On average about 71% of the sky is covered by cloud in September. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 2,674 m, while Xining lies at about 2,275 m. Temperatures on this page were therefore adjusted by +2.6 °C4.7 °F using the standard lapse rate of 6.5 °C per 1,000 m.