Llan Weather Forecast
- 11
- 14
Cloudy
- 12
- 14
Heavy rain
- 13
- 15
Light rain
- 13
- 18
Cloudy
- 13
- 18
Cloudy
- 13
- 17
Partly cloudy
Today 18 May Wales
A day of sunny spells and scattered showers, with some heavier showers possible. Cloud building later with some wet and windy weather arriving by evening. Maximum temperature 16 °C.
Llan Temperature Statistics
May Temperature
Lake Vyrnwy Saws (22km)
Lowest 12 May, 2026
1.7 °CAverage May
7.9 °CHighest 2 May, 2026
14.3 °C
Climate (2021–Present)
Lake Vyrnwy Saws (22km)
Average Low 2021–2026
6.3 °CAverage 2021–2026
9 °CAverage High 2021–2026
11.8 °C