Snowdonia National Park Weather Forecast
- 7
- 11
Light rain
- 10
- 12
Cloudy
- 10
- 13
Heavy rain shower
- 11
- 14
Light rain
- 12
- 17
Cloudy
- 12
- 18
Partly cloudy
Today 17 May Wales
Bright or sunny spells and isolated showers until mid to late afternoon, then the showers become more widespread, frequent and often heavy, with a chance of thunder. Maximum temperature 15 °C.
Snowdonia National Park Temperature Statistics
May Temperature
Capel Curig Saws (26km)
Lowest 11 May, 2026
1.9 °CAverage May
9 °CHighest 2 May, 2026
15 °C
Climate (2021–Present)
Capel Curig Saws (26km)
Average Low 2021–2026
6.9 °CAverage 2021–2026
9.9 °CAverage High 2021–2026
12.7 °C