Climate averages 1991–2020
Beidao weather
in September.
A mild, wet month: the 5th warmest and the joint 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Beidao: daytime highs average 21.9°C and nights cool to about 14.0°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 115 mm of rain on roughly 13 days, which makes September a wet month (the joint 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 25 min on an average September day.
The nearest other city in this atlas is Tianshui (14 km away). In September its highs average 21.9°C, about as warm as Beidao, with 116 mm of rain.
Among the 884 cities listed in China, Beidao ranks joint 752nd of 884 for the warmest September highs and joint 630th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Beidao is 3.8°C cooler than that mean.
From September to October, average highs fall by 5.4°C to 16.5°C, and monthly rainfall falls from 115 mm to 75 mm.
The annual picture
September 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
Beidao climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.5°C-4.9°C | -4.9°C | 12 | 4.4 | 10.110 h |
| February | 6.9°C-2.3°C | -2.3°C | 17 | 5.3 | 10.911 h |
| March | 12.6°C2.1°C | 2.1°C | 31 | 8.1 | 11.912 h |
| April | 18.6°C7.3°C | 7.3°C | 48 | 8.1 | 13.013 h |
| May | 22.6°C11.8°C | 11.8°C | 74 | 9.9 | 13.914 h |
| June | 26.3°C16.1°C | 16.1°C | 88 | 9.0 | 14.414 h |
| July | 28.1°C18.8°C | 18.8°C | 115 | 11.2 | 14.214 h |
| August | 27.0°C18.1°C | 18.1°C | 116 | 11.0 | 13.413 h |
| September, selected | 21.9°C14.0°C | 14.0°C | 115 | 12.6 | 12.412 h |
| October | 16.5°C8.3°C | 8.3°C | 75 | 11.6 | 11.311 h |
| November | 10.5°C2.1°C | 2.1°C | 28 | 6.6 | 10.410 h |
| December | 4.9°C-3.4°C | -3.4°C | 11 | 3.6 | 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
September in nearby cities
- Tianshui in SeptemberChina · 14 kmHigh 21.9°C · Low 13.9°C · 116 mm rain
- Xingguo in SeptemberChina · 38 kmHigh 21.8°C · Low 13.4°C · 108 mm rain
- Gangu Chengguanzhen in SeptemberChina · 55 kmHigh 21.9°C · Low 13.5°C · 95 mm rain
- Xinxing in SeptemberChina · 57 kmHigh 21.5°C · Low 13.2°C · 95 mm rain
- Pan’an in SeptemberChina · 74 kmHigh 21.3°C · Low 12.9°C · 94 mm rain
- Luomen in SeptemberChina · 82 kmHigh 21.2°C · Low 12.7°C · 94 mm rain
- Baoji in SeptemberChina · 125 kmHigh 23.8°C · Low 15.6°C · 176 mm rain
- Pingliang in SeptemberChina · 130 kmHigh 20.3°C · Low 11.5°C · 116 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 Beidao) is explained once on the Beidao year overview and on the Sources, method and limits page.