Wales - United Kingdom weather in December 2025
Wales - United Kingdom weather in December 2025
Day
9 °C
Night
4 °C
Sea
10 °C
Precipitation
106 mm
in month
Rainy days
17 days
in month
Daylight
8 hours
average
Sunshine
1 hours
average
Humidity
90 %
Day
9 °C
Night
4 °C
Sea
10 °C
Precipitation
106 mm
in month
Rainy days
17 days
in month
Daylight
8 hours
average
Sunshine
1 hours
average
Humidity
90 %
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Weather overview and FAQs
Weather overview
In December in Wales, the average air temperature ranges from 9 °C (47 °F) during the day to 4 °C (39 °F) at night. There are 17 days of rain on average, where the rainfall is 106 mm (4.19 in).
Are there good conditions to visit in December in Wales?
In December there are not good conditions to visit Wales. A relatively low temperature of 9 °C (47 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of 4 °C (39 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two. In Wales in December, there is a wet season, which means that it could rain more often there during your stay.
How many days of precipitation on average can I expect in Wales in December?
There are 17 days, which are rainy in Wales in December, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 3.9 days of the week, or in general - 55 % days.
What is the temperature in Wales during the day in December?
In Wales in December, the average daily temperatures will be 9 °C (47 °F). Be sure to pack warm clothes, including a jacket and a warm sweater. On some days it may occasionally freeze, but with stronger winds, the feeling of cold may increase.
What is the air temperature in Wales in December at night?
The average night temperature in Wales in December is 4 °C (39 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.
What is the rainfall intensity in December in Wales?
In Wales in December, there is 106 mm (4.19 in) rainfall, which means on average 4 mm (0.14 in) rainfall per day.
How many sunny hours can I expect in December in Wales?
There is an average length of sunshine of 1 hour per day in December in Wales.
Is December part of the wet season in Wales?
Yes, in December in Wales there is a wet season with 17 days, when there is rain in a month.
How long is the day (from dawn till dusk) in Wales in December?
The length of daylight in Wales in December is 8 hours.
Is it freezing in Wales in December?
It is not very likely that you will experience freezing in December in Wales, daily temperatures will rise to 4 °C (39 °F).
How windy is Wales in December?
In December in Wales, there will be an average wind scale of 5.
Is the weather in Wales warmer in December than in November?
No, December is not warmer in Wales than November.
What level of humidity is to expect in December in Wales?
Humidity in Wales in December is 90 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.
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