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 shift from November to December coincides with a small decrease in the average high-temperature, down to a wintry 3.3°C (37.9°F) from a chilly 6.9°C (44.4°F). Rockneby, during the December nights, maintains an average temperature of 0.5°C (32.9°F), closely aligned with its daytime readings.Humidity
January, February, November and December, with an average relative humidity of 86%, are the most humid months.Rainfall
In Rockneby, in December, during 10.9 rainfall days, 24mm (0.94") of precipitation is typically accumulated. Throughout the year, in Rockneby, Sweden, there are 127.2 rainfall days, and 299mm (11.77") of precipitation is accumulated.Snowfall
Months with snowfall in Rockneby are January through May, October through December. In Rockneby, in December, snow falls for 7.7 days, with typically accumulated 49mm (1.93") of snow. Throughout the year, in Rockneby, there are 40.5 snowfall days, and 250mm (9.84") of snow is accumulated.Daylight
December has the shortest days of the year in Rockneby, Sweden, with an average of 6h and 54min of daylight.On the first day of December in Rockneby, sunrise is at 08:07 and sunset at 15:20. On the last day of the month, sunrise is at 08:31 and sunset at 15:24 CET.
Sunshine
In December, the average sunshine in Rockneby is 3.5h.UV index
In December, the average daily maximum UV index in Rockneby, Sweden, is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
Is December cold in Rockneby?
What are the most humid months in Rockneby?
What is the average humidity in December in Rockneby?
How much does it rain in Rockneby in December?
How many days does it snow in December in Rockneby?
What is the month with the shortest days in Rockneby?
How many hours of daylight does Rockneby have in December?
When are sunrise and sunset in December in Rockneby?
How long on average sun shines in December in Rockneby?
What is the UV index reading in December in Rockneby?
Average temperature in December
Rockneby, Sweden
- Average high temperature in December: 3.3°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (1.6°C).
- Average low temperature in December: 0.5°C
The month with the highest average low temperature is July (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (-1.3°C).
Average pressure in December
Rockneby, Sweden
- Average pressure in December: 1010.2mbar
The months with the highest atmospheric pressure are April and May (1015.4mbar).
The month with the lowest atmospheric pressure is December (1010.2mbar).
Average wind speed in December
Rockneby, Sweden
- Average wind speed in December: 18.8km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is May (14.1km/h).
Average humidity in December
Rockneby, Sweden
- Average humidity in December: 86%
The months with the highest relative humidity are January, February, November and December (86%).
The months with the lowest relative humidity are April and May (71%).
Average rainfall in December
Rockneby, Sweden
- Average rainfall in December: 24mm
The wettest month (with the highest rainfall) is July (36mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in December
Rockneby, Sweden
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in December
Rockneby, Sweden
- Average snowfall in December: 49mm
The month with the highest snowfall is February (84mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Rockneby, Sweden
- Average snowfall days in December: 7.7 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rockneby, Sweden
- Average daylight in December: 6h and 5min
The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in December
Rockneby, Sweden
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in December
Rockneby, Sweden
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Rockneby, Sweden
- Average cloud cover in December: 65
The months with the most cloud cover are January and February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Rockneby, Sweden
- Average visibility in December: 9km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
Rockneby, Sweden
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