Penarth Weather in December

December in Penarth brings low temperatures, with daytime highs of 10°C (50°F) and nights around 4°C (39°F). Quite a bit of rainfall is expected, around 107 mm (4.2 in), so pack an umbrella.

Rainfall in Penarth in December

On average, there are about 19 days with rain during this month, averaging 107 mm (4.2 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Penarth in December

If you're visiting Penarth in December, expect highs of 10°C (50°F) and overnight lows around 4°C (39°F). December marks the winter season. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. At 4°C (39°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Penarth in December

This month is characterized by fewer sunny days, with about 49 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

Wind Speed in Penarth in December

Wind speeds average 5 m/s (10 knots) during December. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.

Average water temperature in December

At 10°C (50°F), the water is too cold for most people to swim comfortably. A wetsuit is pretty much essential if you plan to go in.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Penarth.

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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 Penarth's climate page.

Penarth Temperature in December

Min Temperature 4°C (39°F)  

Max Temperature 10°C (50°F)  

Water Temperature 10°C (50°F) *  

Chance of Rain 64%  

Precipitation 107 mm (4.2 in)  

Rainy days 19 days  

Humidity 89% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 49 hours *  

Percentage Sunshine 19% *  

* Data from: Cardiff, the United Kingdom (12 KM, 8 Miles).

What to Wear in Penarth in December

We recommend to layer up for chilly conditions in Penarth 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. With water temperatures around 10°C (50°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.

What To Do in Penarth 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 Penarth's climate page.

More climate data for Penarth

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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