Caernarfon Weather in December
What's the weather like in Caernarfon (Wales) in December 2024?
The climate in Caernarfon during December can be summarized as cool and wet.
December is in the winter in Caernarfon and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 8°C (46°F), whilst at night 3°C (37°F) is normal.
| Daytime temperature | 7.9°C 46.1°F |
|---|---|
| Nightly temperature | 3°C 37.3°F |
| Average temperature | 5.4°C 41.7°F |
| Daily sunshine | 1.5 hrs |
| Avg rainfall | 184 mm 7.2 ins |
| Rainy days | 21 days |
| Sea temperature | 10.2°C 50.4°F |
| Humidity | 89% |
| Windspeed | 23.8kph 15 mph |
On average December is the wettest month of the year in Caernarfon with around 184mm 7.2 inches of rain making it a wet time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.
On the flip side this corresponds to an average of 1.5 hours of sunshine per day.
December temperatures in Caernarfon
December rainfall
December hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Caernarfon in December 2024.
Other monthly averages
Best places to visit in December
Caernarfon weather stats
| Hottest month: | July | 17.9°C 64.2°F |
|---|---|---|
| Driest month: | May | 90mm 3.5ins |
| Sunniest month: | May | 6.9hrs |
| Coldest month: | February | 6.6°C 43.9°F |
| Wettest month: | November | 184mm 7.2ins |
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