French Island Weather Forecast
- 15
- 20
Shower or two
- 11
- 15
Rain
- 9
- 16
Partly cloudy
- 8
- 17
Mostly sunny
- 9
- 22
Partly cloudy
- 15
- 21
Shower or two
- 14
- 22
Showers
Today 25 Sep Central
Cloudy. Medium chance of showers, most likely in the late afternoon and evening. The chance of a thunderstorm in the afternoon and evening. Light winds becoming south to southwesterly 15 to 20 km/h in the late afternoon then becoming light in the evening. Daytime maximum temperatures in the low to mid 20s.
French Island Temperature Statistics View More
September Temperature
Rhyll (13km)
Lowest 18 September, 2026
7.2 °CAverage September
13.5 °CHighest 19 September, 2026
23.4 °C
Climate (2021–2026)
Rhyll (13km)
Average Low 2021–2026
12.2 °CAverage 2021–2026
15.2 °CAverage High 2021–2026
19.4 °C