Temperature in Glamorgan in December

Daytime highs, nighttime lows and the warmest cities in Glamorgan, the United Kingdom this December.

Glamorgan, the United Kingdom, a region in the United Kingdom, experiences low average maximum daytime temperatures in December, ranging from 8°C (46°F) in Merthyr Tydfil to 10°C (50°F) in Llangennith. Nighttime temperatures generally drop to 6°C (43°F) in Llangennith and 2°C (36°F) in Merthyr Tydfil. The month of December is in the winter season.

What is the temperature of the different cities in Glamorgan, the United Kingdom in December?

Find the average daytime temperatures in December for the most popular destinations in Glamorgan on the map below. Click on a destination dot for more detailed information.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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

See also: Glamorgan weather by month.

Best Places to Visit in Glamorgan in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Glamorgan.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in December: blue is cold, red is hot.

See all December weather averages, cities and regions in Glamorgan

Glamorgan temperatures in December: frequently asked questions

How hot does it get in Glamorgan, the United Kingdom in December?

Daytime temperatures in Cardiff typically peak at 10°C (50°F) in December, putting it in the low range.

How cold does it get at night in Glamorgan, the United Kingdom in December?

After dark, Cardiff cools to about 5°C (41°F) on an average December night.

What is the warmest city in December in Glamorgan, the United Kingdom?

Llangennith tops the warmest city list in our database with average maximum daytime temperatures around 10°C (50°F) and a minimum nighttime temperature of around 6°C (43°F).

What is the coldest city in December in Glamorgan, the United Kingdom?

For the month of December, Merthyr Tydfil is the most temperate city in Glamorgan, the United Kingdom based on our records. Highs average 8°C (46°F) and nighttime temperatures dip to around 2°C (36°F).

How much sun does Glamorgan, the United Kingdom get in December?

Most cities witness limited sunny days; expect roughly 49 hours of sunlight in Cardiff. This subdued sunlight is perfect for those who prefer cooler, cloudier weather rather than intense sunny days.

What is the water temperature in December?

The water temperature averages approximately 10°C (50°F) in Cardiff this month, generally too cold for comfortable swimming.

Interested in more climate information?

We have much more information about the climate in Glamorgan.

Weather and climate has detailed information for every country in the world. Are you going to the United Kingdom? Get detailed historical weather averages for many cities in the United Kingdom.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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