The weather in December in Wales

It's cold in December in Wales with an average temperature of 5°C. Temperatures this month range from a low of 2°C to a high of 9°C. At night, you can expect temperatures between -6°C and 1°C.

Looking for sun? December isn’t a good month to be in Wales. There’s too much chance of rain this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December for Wales, Massachusetts. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 19°C in 2015, Wales reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was -13°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of -20°C to a highest value of 11°C.

Precipitation and snowfall

In December, there is an average of 192 mm of precipitation, spread over 21 days. Of the total precipitation, about 28 cm falls as snow in December. The wind speed is around 4 Bft, mostly coming from the Southwest.

Daily weather in December for Wales

Click on any day in December to get detailed info about the usual weather on that day in Wales. Check out the historical temperatures and precipitation over the past 10 years on this day.

December weather comparison

  Wales New York
Average temperature 5°C 9°C
Max. temperature 9°C 12°C
Min. temperature -6°C -5°C
Total precipitation 192 mm 133 mm
Rainy days 21 days 17 days
Total snowfall 28 cm 9,7 cm
Snowy days 11 days 3 days

Start of December

The month of December starts in Wales with cold temps, averaging around 7°C during the day and nights around -1°C.

Mid December

By mid-December, daytime temps drop to around 5°C, with nights around -2°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of December

By the end of December, the average daytime temperature in Wales is around 6°C, while nighttime temps are about -2°C. There’s a significant chance of many days with precipitation.

UV index

The UV index is a maximum of 2 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.

Check out the climate of Wales for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in December in Wales, Massachusetts. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in December in Wales

Temperature in December in Wales over the years

Precipitation charts

These charts show the average amount of precipitation in December in Wales, Massachusetts. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in December in Wales

Total precipitation in December in Wales over the years

Daily Snowfall in December in Wales

Snowfall in December in Wales per year

Daily UV index in December in Wales

This chart shows the average daily UV index in December in Wales, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in December in Wales

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Average weather in Wales by month

Click on a month below to see detailed weather info for Wales. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.