Newton Bay Weather Forecast
- 13
- 20
Cloudy
- 14
- 21
Cloudy
- 12
- 19
Cloudy
- 14
- 18
Partly cloudy
- 13
- 19
Light rain shower
- 16
- 18
Cloudy
- 17
- 21
Light rain
Today 23 Sep Wales
Overcast with outbreaks of rain, this locally heavy and persistent across the hills and mountains of north Wales. Risk of thunder and hail through the morning. Becoming drier and brighter from the west during the afternoon. Temperatures around average. Maximum temperature 20 °C.
Tonight 23 Sep Wales
A dry night to come with plenty of clear spells and light winds. Temperatures will drop quickly to low single figures in rural and sheltered spots. Grass frost likely. Minimum temperature 3 °C.
Newton Bay Temperature Statistics
September Temperature
St-athan (17km)
Lowest 10 September, 2026
10.1 °CAverage September
16.7 °CHighest 6 September, 2026
25.1 °C
Climate (2021–2026)
St-athan (17km)
Average Low 2021–2026
9.1 °CAverage 2021–2026
12 °CAverage High 2021–2026
14.8 °C