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 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
In December, Achill Sound's weather conditions record an average high-temperature of a still chilly 8.1°C (46.6°F), demonstrating little divergence from the preceding month. Achill Sound's nighttime temperatures in December display a slight drop from daytime highs, averaging to a cold 5°C (41°F).Humidity
In December, the average relative humidity in Achill Sound is 84%.Rainfall
In Achill Sound, during December, the rain falls for 16.3 days and regularly aggregates up to 50mm (1.97") of precipitation. In Achill Sound, during the entire year, the rain falls for 210.4 days and collects up to 483mm (19.02") of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Achill Sound, in December, during 1.5 snowfall days, 7mm (0.28") of snow is typically accumulated. In Achill Sound, during the entire year, snow falls for 11 days and aggregates up to 72mm (2.83") of snow.Daylight
December has the shortest days of the year, with an average of 7h and 30min of daylight.On the first day of the month, sunrise is at 8:35 am and sunset at 4:22 pm. On the last day of December, sunrise is at 8:58 am and sunset at 4:27 pm GMT.
Sunshine
The months with the least sunshine in Achill Sound are January and December, with an average of 3.5h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 in December translates into this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the usual temperature for Achill Sound in December?
What is the average humidity in December in Achill Sound?
How much does it rain in Achill Sound in December?
How many days does it snow in December in Achill Sound?
What is the month with the shortest days in Achill Sound?
How many hours of daylight does Achill Sound have in December?
What time are sunrise and sunset in December in Achill Sound?
What are the months with the least sunshine in Achill Sound?
How long on average sun shines in December in Achill Sound?
When is the lowest UV index in Achill Sound?
What is the UV index reading in December in Achill Sound?
Average temperature in December
Achill Sound, Ireland
- Average high temperature in December: 8.1°C
The warmest month (with the highest average high temperature) is August (16°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in December: 5°C
The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is February (4.2°C).
Average pressure in December
Achill Sound, Ireland
- Average pressure in December: 1009.2mbar
The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is November (1007.2mbar).
Average wind speed in December
Achill Sound, Ireland
- Average wind speed in December: 25km/h
The windiest month (with the highest average wind speed) is January (25.1km/h).
The calmest month (with the lowest average wind speed) is July (15.6km/h).
Average humidity in December
Achill Sound, Ireland
- Average humidity in December: 84%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is April (81%).
Average rainfall in December
Achill Sound, Ireland
- Average rainfall in December: 50mm
The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in December
Achill Sound, Ireland
- Average rainfall days in December: 16.3 days
The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is February (14.8 days).
Average snowfall in December
Achill Sound, Ireland
- Average snowfall in December: 7mm
The month with the highest snowfall is February (23mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Achill Sound, Ireland
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Achill Sound, Ireland
- Average daylight in December: 7h and 3min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 30min).
Average sunshine days in December
Achill Sound, Ireland
- Average sunshine days in December: 9.7 days
The month with the most sunshine days is December (9.7 days).
The month with the least sunshine days is August (4.2 days).
Average UV index in December
Achill Sound, 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
Achill Sound, Ireland
- Average cloud cover in December: 66
The months with the most cloud cover are January, July and August (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 58).
Average visibility in December
Achill Sound, Ireland
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Achill Sound, Ireland
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