Kinmen County 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
Excellent
Best time to visit: July, September – October
What is the weather like in Kinmen County in September?
In September, Kinmen County is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sea averages 27.6 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 118 mm in total. On about 13 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is an excellent month for a holiday in Kinmen County.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 74 | 80 | 90 |
| Day | 30° | 30° | 27° |
| Night | 26° | 24° | 21° |
| Sea | 28° | 28° | 25° |
| Sun | 7 h | 6 h | 6 h |
| Rain days | 17 | 11 | 4 |
More details for September
- Daylight
- 12 h 20 min05:52 – 18:12
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 29 daysdew point 18 °C or moreAll months
- Wind
- 20 km/haverage daily peakAll months
- Cloud cover
- 57 %on averageAll months
- Hot days
- 13 days30 °C or moreAll months
- Time zone
- UTC+8Asia/Taipei
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %52 %
- Few rainy daysweight 20 %50 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in September
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Kinmen County in September: quick answers
Is Kinmen County hot in September?
Yes. In September, Kinmen County is hot: daytime highs average 30 °C and nights stay around 24 °C. On about 13 days the thermometer climbs to 30 °C or more.
Can you swim in Kinmen County in September?
Yes. In September the sea averages 27.6 °C – lovely and warm for swimming.
Does it rain much in Kinmen County in September?
Rain is frequent, with about 11 rainy days and 118 mm in total.
Kinmen County month by month
The whole year in Kinmen CountyAll destinations: TaiwanWhere 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