Castles Bay Weather Forecast
- 7
- 10
Overcast
- 8
- 9
Cloudy
- 7
- 11
Cloudy
- 5
- 10
Cloudy
- 3
- 6
Cloudy
- 3
- 6
Sunny day
- 4
- 6
Sunny day
Today 20 Dec Wales
A largely fine day with sunny periods. Freshening southeasterly winds developing and turning windier in the west with some rain possible in Pembrokeshire later. Feeling cooler. Maximum Temperature 9C.
Tonight 20 Dec Wales
Outbreaks of heavy rain and blustery winds will spread north-eastwards through the evening. Turning drier overnight, though low cloud and drizzle lingering in the east. Winds tending to ease. Turning chilly where skies remain clear, with some fog patches forming. Minimum Temperature 3C.
Castles Bay Temperature Statistics
December Temperature
Milford Haven C.b. (5km)
Lowest 16 December, 2025
4.9 °CAverage December
10.3 °CHighest 9 December, 2025
14 °C
Climate (2020–Present)
Milford Haven C.b. (5km)
Average Low 2020–2025
9.3 °CAverage 2020–2025
11.7 °CAverage High 2020–2025
14.2 °C