South Stack Weather Forecast
- 6
- 9
Sunny day
- 10
- 11
Heavy rain
- 8
- 11
Heavy rain
- 9
- 10
Sunny day
- 7
- 10
Light rain
- 6
- 9
Light rain shower
- 5
- 8
Partly cloudy
Today 16 Dec Wales
A bright and dry start for most, with some patchy cloud lingering at first. A largely settled day, with prolonged sunshine, though the odd light shower is possible in the west. A light breeze, with temperatures near average. Maximum Temperature 9C.
Tonight 16 Dec Wales
Remaining largely settled overnight, with skies becoming clear allowing frost patches to form. Turning increasingly cloudy with strengthening winds from the west from dawn ahead of a rain band. Minimum Temperature 3C.
South Stack Temperature Statistics
December Temperature
Valley (12km)
Lowest 4 December, 2025
5.9 °CAverage December
10.3 °CHighest 9 December, 2025
13.8 °C
Climate (2020–Present)
Valley (12km)
Average Low 2020–2025
9 °CAverage 2020–2025
11.4 °CAverage High 2020–2025
13.8 °C