Average monthly snow and rainfall in Caernarfon
The mean monthly precipitation over the year in Caernarfon (Gwynedd), including rain, snow, hail.
- A lot of rain (rainy season) falls in the months: January, February, August, September, October, November and December.
- On average, December is the wettest month with 144 mm of precipitation.
- On average, May is the driest month with 86 mm of precipitation.
- The average amount of annual precipitation is 1339 mm.
Forecast for Caernarfon
Sun May 19
20°C | 10°C
NE 
18 km/h
18 km/h
clear and no rain
Mon May 20
20°C | 10°C
NE 11 km/h
11 km/h1.2 mm
partly cloudy and chance of rain
Tue May 21
18°C | 10°C
N 11 km/h
11 km/h
almost clear and no rain
