Merthyr Tydfil Weather Forecast
- 10
- 16
Heavy rain
- 10
- 15
Light rain
- 8
- 15
Cloudy
- 6
- 13
Cloudy
- 4
- 11
Cloudy
- 4
- 11
Cloudy
- 5
- 12
Cloudy
Today 2 May Wales
A bright start in the east, but rather cloudy with showery outbreaks of rain further west. The showers becoming more widespread from mid-afternoon, and turning persistent from the southeast later. Still rather warm and humid. Maximum temperature 17 °C.
Tonight 2 May Wales
Rain will become persistent overnight with some heavier bursts likely across eastern counties. The rain should clear southern counties for a time towards dawn. Minimum temperature 7 °C.
Merthyr Tydfil Temperature Statistics
May Temperature
Sennybridge (38km)
Lowest 1 May, 2026
10.5 °CAverage May
11.8 °CHighest 1 May, 2026
13.3 °C
Climate (2021–Present)
Sennybridge (38km)
Average Low 2021–2026
5.7 °CAverage 2021–2026
9.3 °CAverage High 2021–2026
12.8 °C