Climate averages 1991–2020
Rui’an weather
in September.
A warm, wet month: the 3rd warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Rui’an: daytime highs average 27.5°C and nights cool to about 23.0°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 173 mm of rain on roughly 14 days, which makes September a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 21 min on an average September day.
The nearest other city in this atlas is Wenzhou (25 km away). In September its highs average 27.7°C, about as warm as Rui’an, with 171 mm of rain.
Among the 884 cities listed in China, Rui’an ranks joint 246th of 884 for the warmest September highs and joint 788th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Rui’an is 1.8°C warmer than that mean.
From September to October, average highs fall by 3.9°C to 23.6°C, and monthly rainfall falls from 173 mm to 88 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
Rui’an climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 11.8°C5.8°C | 5.8°C | 70 | 10.0 | 10.611 h |
| February | 12.7°C6.6°C | 6.6°C | 76 | 11.6 | 11.211 h |
| March | 15.3°C9.3°C | 9.3°C | 125 | 15.0 | 12.012 h |
| April | 19.6°C13.6°C | 13.6°C | 124 | 14.4 | 12.813 h |
| May | 23.8°C18.6°C | 18.6°C | 174 | 14.5 | 13.514 h |
| June | 27.1°C22.8°C | 22.8°C | 261 | 15.9 | 13.914 h |
| July | 30.0°C25.8°C | 25.8°C | 153 | 13.7 | 13.714 h |
| August | 30.0°C25.8°C | 25.8°C | 228 | 18.0 | 13.113 h |
| September, selected | 27.5°C23.0°C | 23.0°C | 173 | 14.4 | 12.312 h |
| October | 23.6°C18.1°C | 18.1°C | 88 | 7.6 | 11.512 h |
| November | 19.1°C13.3°C | 13.3°C | 83 | 9.7 | 10.811 h |
| December | 14.1°C7.7°C | 7.7°C | 64 | 8.9 | 10.410 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
- Wenzhou in SeptemberChina · 25 kmHigh 27.7°C · Low 22.2°C · 171 mm rain
- Jinxiang in SeptemberChina · 39 kmHigh 27.4°C · Low 23.5°C · 188 mm rain
- Fuding in SeptemberChina · 66 kmHigh 28.4°C · Low 22.5°C · 194 mm rain
- Lishui in SeptemberChina · 106 kmHigh 28.7°C · Low 21.4°C · 104 mm rain
- Songcheng in SeptemberChina · 119 kmHigh 28.4°C · Low 23.4°C · 151 mm rain
- Taizhou (Zhejiang), China in SeptemberChina · 124 kmHigh 27.8°C · Low 22.0°C · 160 mm rain
- Fu’an in SeptemberChina · 126 kmHigh 29.2°C · Low 21.6°C · 140 mm rain
- Guli in SeptemberChina · 137 kmHigh 28.6°C · Low 21.1°C · 98 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 Rui’an) is explained once on the Rui’an year overview and on the Sources, method and limits page.