Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The onset of December in Donegal brings an average high-temperature of a still chilly 7°C (44.6°F), nearly matching the November temperature. During the month of December, Donegal identifies an average nighttime low-temperature of 3.6°C (38.5°F), slightly lower than its daytime counterpart.Humidity
The average relative humidity in December in Donegal is 87%.Rainfall
In Donegal, in December, during 21.8 rainfall days, 77mm (3.03") of precipitation is typically accumulated. In Donegal, Ireland, during the entire year, the rain falls for 249.6 days and collects up to 779mm (30.67") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Donegal, in December, snow falls for 1.1 days, with typically accumulated 9mm (0.35") of snow. In Donegal, during the entire year, snow falls for 8.9 days and aggregates up to 117mm (4.61") of snow.Sea temperature
In Donegal, Ireland, the average seawater temperature in December is 10.9°C (51.6°F).Note: Swimming in 10.9°C (51.6°F) at temperatures under 10°C (50°F) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 13°C (55.4°F) feels frosty.
Daylight
With an average of 7h and 24min of daylight, December has the shortest days of the year.On the first day of December in Donegal, Ireland, sunrise is at 8:32 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 8:55 am and sunset at 4:16 pm GMT.
Sunshine
In December, the average sunshine is 3.4h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Donegal. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
How cold is December in Donegal?
What is the average humidity in December in Donegal?
How many days does it rain in December in Donegal?
How many days does it snow in December in Donegal?
What is the sea water temperature in December in Donegal?
What is the month with the shortest days in Donegal?
How many hours of daylight does Donegal have in December?
When is the sunrise / sunset in December in Donegal?
How long on average sun shines in December in Donegal?
What is the month with the lowest UV index in Donegal?
What is the UV index reading in December in Donegal?
Average temperature in December
Donegal, Ireland
- Average high temperature in December: 7°C
The warmest month (with the highest average high temperature) is July (16.3°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in December: 3.6°C
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).
Average pressure in December
Donegal, Ireland
- Average pressure in December: 1008.5mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is November (1006.7mbar).
Average wind speed in December
Donegal, Ireland
- Average wind speed in December: 21.3km/h
The windiest month (with the highest average wind speed) is January (22.1km/h).
The calmest month (with the lowest average wind speed) is July (13.6km/h).
Average humidity in December
Donegal, Ireland
- Average humidity in December: 87%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (82%).
Average rainfall in December
Donegal, Ireland
- Average rainfall in December: 77mm
The wettest month (with the highest rainfall) is August (87mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in December
Donegal, Ireland
- Average rainfall days in December: 21.8 days
The month with the highest number of rainy days is August (25.2 days).
The month with the least rainy days is April (17.8 days).
Average snowfall in December
Donegal, Ireland
- Average snowfall in December: 9mm
The month with the highest snowfall is January (41mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Donegal, Ireland
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Donegal, Ireland
- Average sea temperature in December: 10.9°C
The best month for swimming (with the highest average sea temperature) is August (14.8°C).
The coldest month (with the lowest average sea temperature) is March (9.2°C).
Average daylight in December /
Average sunshine in December
Donegal, Ireland
- Average daylight in December: 7h and 2min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is June (Average sunshine: 6h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Donegal, Ireland
- Average sunshine days in December: 6 days
The month with the most sunshine days is April (9.5 days).
The month with the least sunshine days is August (3.4 days).
Average UV index in December
Donegal, Ireland
- Average UV index in December: 2
The months with the highest UV index are May and June (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Donegal, Ireland
- Average cloud cover in December: 68
The months with the most cloud cover are January and August (Cloud cover 70).
The month with the least cloud cover is April (Cloud cover 59).
Average visibility in December
Donegal, Ireland
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).
Donegal, Ireland
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