Trevethin Weather Forecast
- 6
- 7
Cloudy
- 8
- 12
Light rain
- 4
- 10
Heavy rain shower
- 1
- 7
Cloudy
- 4
- 7
Partly cloudy
- 6
- 10
Heavy rain
Today 26 Nov Wales
A dry and cold start but any brightness in the east short-lived. Occasional rain arriving by lunchtime and turning increasingly wet and breezy through the afternoon. Chilly, but milder later. Maximum Temperature 8C.
Trevethin Temperature Statistics
November Temperature
St-athan (43km)
Lowest 21 November, 2025
-1.3 °CAverage November
10.2 °CHighest 5 November, 2025
15.9 °C
Climate (2020–Present)
St-athan (43km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
11.7 °CAverage High 2020–2025
14.5 °C