Caernarfon Weather in December

December in Caernarfon brings low temperatures, with daytime highs of 10°C (50°F) and nights around 5°C (41°F). It's also the wettest month of the year, so an umbrella is a must.

Rainfall in Caernarfon in December

Prepare for the wettest month with an umbrella to protect yourself from frequent rain. Typically, you can expect about 21 days of rain this month, with 144 mm (5.7 in) on average. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Caernarfon in December

Temperatures in Caernarfon in December top out at 10°C (50°F) and drop to 5°C (41°F) overnight. The winter season is characteristic of December. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. With overnight lows of 5°C (41°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Caernarfon in December

The month is characterized by fewer sunny days, with roughly 26 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.

December in Caernarfon has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.

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For a detailed overview over the year and the best time to visit the United Kingdom, check out our Caernarfon's climate page.

Caernarfon Temperature in December

Min Temperature 5°C (41°F)  

Max Temperature 10°C (50°F)  

Chance of Rain 70%  

Precipitation 144 mm (5.7 in)  

Rainy days 21 days  

Sunshine 26 hours *  

Percentage Sunshine *  

* Data from: Bala, the United Kingdom (51 KM, 32 Miles).

What to Wear in Caernarfon in December

We recommend to layer up for chilly conditions in Caernarfon in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.

What To Do in Caernarfon in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

3/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Caernarfon's climate page.

More climate data for Caernarfon

Temperature Rainfall Sunshine

See the full Caernarfon climate overview or explore weather in the United Kingdom.