Cymmer Weather in December

Cymmer in December sees low temperatures, with highs around 9°C (48°F) and overnight lows of 3°C (37°F). Rainfall is at its peak this month, around 139 mm (5.5 in) on average, so waterproofs are essential.

Rainfall in Cymmer in December

This month is known for heavy rainfall, so don't forget your umbrella to stay dry. Expect around 20 days of rain based on historical data, with 139 mm (5.5 in) average. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Cymmer in December

Daytime highs in Cymmer in December reach 9°C (48°F), with nights around 3°C (37°F). The winter season is characteristic of December. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. With lows around 3°C (37°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Cymmer in December

The area experiences limited sunny days, amounting to roughly 49 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.

December in Cymmer can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, 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 Cymmer's climate page.

Cymmer Temperature in December

Min Temperature 3°C (37°F)  

Max Temperature 9°C (48°F)  

Chance of Rain 68%  

Precipitation 139 mm (5.5 in)  

Rainy days 20 days  

Humidity 89% *  

Sunshine 49 hours *  

Percentage Sunshine 19% *  

* Data from: Cardiff, the United Kingdom (34 KM, 21 Miles).

What to Wear in Cymmer in December

We recommend to layer up for chilly conditions in Cymmer 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. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.

What To Do in Cymmer 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 Cymmer's climate page.

More climate data for Cymmer

Temperature Rainfall Sunshine Humidity

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