The weather in December in Gwynedd

It's cold in December in Gwynedd with an average temperature of 9°C. Temperatures this month range from a low of 8°C to a high of 11°C. At night, you can expect temperatures between 3°C and 8°C.

Looking for sun? December isn’t a good month to be in Gwynedd. 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 Gwynedd, Wales. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Precipitation and snowfall

In December, there is an average of 188 mm of precipitation, spread over 22 days. Of the total precipitation, about 0,2 cm falls as snow in December. The wind speed is around 5 Bft, mostly coming from the Southwest.

Daily weather in December for Gwynedd

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

December weather comparison

  Gwynedd New York
Average temperature 9°C 9°C
Max. temperature 11°C 12°C
Min. temperature 3°C -5°C
Total precipitation 188 mm 133 mm
Rainy days 22 days 17 days
Total snowfall 0,2 cm 9,7 cm
Snowy days 1 day 3 days

Start of December

The month of December starts in Gwynedd with cold temps, averaging around 10°C during the day and nights around 5°C.

Mid December

By mid-December, daytime temps stay steady at around 10°C, with nights around 6°C. There’s a high chance of precipitation during this time.

End of December

By the end of December, the average daytime temperature in Gwynedd is around 10°C, while nighttime temps are about 7°C. There’s a significant chance of many days with precipitation.

Find affordable vacations to Gwynedd

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 Gwynedd for all months and discover the best travel time

Temperature charts

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

Daily Temperature in December in Gwynedd

Temperature in December in Gwynedd over the years

Precipitation charts

These charts show the average amount of precipitation in December in Gwynedd, Wales. 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 Gwynedd

Total precipitation in December in Gwynedd over the years

Daily Snowfall in December in Gwynedd

Snowfall in December in Gwynedd per year

Daily UV index in December in Gwynedd

This chart shows the average daily UV index in December in Gwynedd, 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 Gwynedd

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Average weather in Gwynedd by month

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