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
The commencement of December brings an average high-temperature of a still frosty 7.3°C (45.1°F), marking an inconsequential divergence from November. The temperature in Swiney during December experiences a small drop from daytime peaks, recording an average of 5°C (41°F) at night.Humidity
The months with the lowest humidity in Swiney are January through April, November and December, with an average relative humidity of 79%.Rainfall
In December, in Swiney, the rain falls for 17.7 days. Throughout December, 26mm (1.02") of precipitation is accumulated. In Swiney, during the entire year, the rain falls for 190.1 days and collects up to 289mm (11.38") of precipitation.Snowfall
Months with snowfall in Swiney are January through May, November and December. The months with the most snowfall in Swiney are February and December, with an average 19mm (0.75") of accumulated snow.Daylight
With an average of 6h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 8:35 am and sunset at 3:28 pm. On the last day of December, in Swiney, sunrise is at 9:00 am and sunset at 3:31 pm GMT.
Sunshine
With an average of 4.1h of sunshine, December has the least sunshine of the year.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 rays for average individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Swiney?
What is the least humid month in Swiney?
What is the average humidity in December in Swiney?
How much does it rain in Swiney in December?
What is the snowiest month in Swiney?
How much does it snow in Swiney in December?
What is the month with the shortest days in Swiney?
How many hours of daylight does Swiney have in December?
What time are sunrise and sunset in December in Swiney?
What is the month with the least sunshine in Swiney?
How long on average sun shines in December in Swiney?
What are the months with the lowest UV index in Swiney?
How high is the UV index in December in Swiney?
Average temperature in December
Swiney, United Kingdom
- Average high temperature in December: 7.3°C
The warmest month (with the highest average high temperature) is August (15°C).
The month with the lowest average high temperature is January (6.5°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 (4.3°C).
Average pressure in December
Swiney, United Kingdom
- Average pressure in December: 1004.6mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1004.6mbar).
Average wind speed in December
Swiney, United Kingdom
- Average wind speed in December: 29.1km/h
The windiest month (with the highest average wind speed) is January (30.4km/h).
The calmest month (with the lowest average wind speed) is July (17.5km/h).
Average humidity in December
Swiney, United Kingdom
- Average humidity in December: 79%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are January, February, March, April, November and December (79%).
Average rainfall in December
Swiney, United Kingdom
- Average rainfall in December: 26mm
The wettest month (with the highest rainfall) is July (31mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in December
Swiney, United Kingdom
- Average rainfall days in December: 17.7 days
The months with the highest number of rainy days are October and November (18.5 days).
The month with the least rainy days is February (13 days).
Average snowfall in December
Swiney, United Kingdom
- Average snowfall in December: 19mm
The months with the highest snowfall are February and December (19mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Swiney, United Kingdom
- Average snowfall days in December: 3.5 days
The months with the highest number of snowfall days are February and December (3.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Swiney, United Kingdom
- Average daylight in December: 6h and 3min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is June (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in December
Swiney, United Kingdom
- Average sunshine days in December: 7.2 days
The month with the most sunshine days is June (12.5 days).
The month with the least sunshine days is November (6.5 days).
Average UV index in December
Swiney, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June, July, August and September (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
Swiney, United Kingdom
- Average cloud cover in December: 56
The month with the most cloud cover is March (Cloud cover 60).
The months with the least cloud cover are April and May (Cloud cover 53).
Average visibility in December
Swiney, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
Swiney, United Kingdom
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