Henllys Vale Weather Forecast
- 8
- 9
Heavy rain
- 6
- 11
Heavy rain
- 5
- 9
Light rain shower
- 4
- 9
Light rain
- 4
- 7
Light rain
- 3
- 7
Cloudy
- 3
- 6
Overcast
Today 17 Dec Wales
A dull and damp day as a band of rain pushes eastwards, bringing widespread and prolonged heavy downpours, accompanied by strong winds and potentially coastal gales. Travel disruption and localised flooding possible. Conditions worst felt in the south and west. Maximum Temperature 10C.
Tonight 17 Dec Wales
Remaining unsettled this evening, with further heavy downpours. However, turning drier through the early hours as rain clears to the east. Feeling milder than the previous night. Often breezy. Minimum Temperature 6C.
Henllys Vale Temperature Statistics
December Temperature
St-athan (36km)
Lowest 5 December, 2025
1.8 °CAverage December
9.8 °CHighest 9 December, 2025
15.2 °C
Climate (2020–Present)
St-athan (36km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
11.7 °CAverage High 2020–2025
14.5 °C