Llandderfel Weather Forecast
- 13
- 18
Light rain
- 11
- 20
Thunder
- 11
- 18
Light rain shower
- 11
- 20
Light rain shower
- 11
- 20
Light rain
- 12
- 20
Partly cloudy
- 11
- 20
Cloudy
Today 29 Aug Wales
A cloudy and wet start with heavy spells of rain, clearing eastwards during the day. Turning brighter from the west during the afternoon with sunny spells and showers following. Maximum temperature 20 °C.
Tonight 29 Aug Wales
Further showers are likely during the evening but turning drier from the west with clear spells. Isolated showers are likely to persist for much of the night, across high ground. Minimum temperature 13 °C.
Llandderfel Temperature Statistics
August Temperature
Lake Vyrnwy Saws (19km)
Lowest 23 August, 2026
7.4 °CAverage August
15.6 °CHighest 13 August, 2026
30.8 °C
Climate (2021–2026)
Lake Vyrnwy Saws (19km)
Average Low 2021–2026
6.4 °CAverage 2021–2026
9.1 °CAverage High 2021–2026
12 °C