Wenzhou weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Fair
Best time to visit: October – November
What is the weather like in Wenzhou in September?
In September, Wenzhou is hot: daytime highs average 28 °C, and even at night it stays warm at around 23 °C. The sea averages 27.3 °C – lovely and warm for swimming. Expect around 5 hours of sunshine a day. It rains often – on about 15 days, adding up to 168 mm. On about 6 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a so-so month for a holiday in Wenzhou.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 41 | 59 | 79 |
| Day | 30° | 28° | 24° |
| Night | 26° | 23° | 17° |
| Sea | 29° | 27° | 24° |
| Sun | 7 h | 5 h | 5 h |
| Rain days | 20 | 15 | 8 |
More details for September
- Daylight
- 12 h 22 min05:42 – 18:04
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 25 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 62 %on averageAll months
- Hot days
- 6 days30 °C or moreAll months
- Time zone
- UTC+8Asia/Shanghai
How the score comes together
- Temperatureweight 50 %88 %
- Sunshineweight 20 %40 %
- Few rainy daysweight 30 %25 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Wenzhou in September: quick answers
Is Wenzhou hot in September?
Yes. In September, Wenzhou is hot: daytime highs average 28 °C and nights stay around 23 °C. On about 6 days the thermometer climbs to 30 °C or more.
Can you swim in Wenzhou in September?
Yes. In September the sea averages 27.3 °C – lovely and warm for swimming.
Does it rain much in Wenzhou in September?
It rains often – on about 15 days, adding up to 168 mm.
Wenzhou month by month
The whole year in WenzhouAll destinations: ChinaWhere to go in SeptemberSea temperature in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences