December weather forecastIrsta, Sweden
December weather for Irsta, Sweden: The month with the shortest days in Irsta, Sweden, is December, with an average of 6h and 12min of daylight. In Irsta, Sweden, during December, snow falls for 8.6 days and regularly aggregates up to 31mm (1.22") of snow.
December
Weather in December
December, the first month of the winter in Irsta, is still a cold month, with an average temperature fluctuating between 0.5°C (32.9°F) and -3.1°C (26.4°F).Temperature
With the arrival of December, Irsta notices a mild change in the average high-temperature, sliding from November's cold 4.5°C (40.1°F) to a still wintry 0.5°C (32.9°F). During the nights of December, the average low-temperature in Irsta holds at a freezing cold -3.1°C (26.4°F).Humidity
The average relative humidity in December in Irsta is 89%.Rainfall
In Irsta, in December, it is raining for 6.7 days, with typically 12mm (0.47") of accumulated precipitation. In Irsta, during the entire year, the rain falls for 105.3 days and collects up to 174mm (6.85") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 8.6 days. Throughout December, 31mm (1.22") of snow is accumulated. Throughout the year, there are 41.1 snowfall days, and 163mm (6.42") of snow is accumulated.Daylight
The month with the shortest days in Irsta, Sweden, is December, with an average of 6h and 12min of daylight.On the first day of the month, sunrise is at 08:25 and sunset at 14:59. On the last day of December, sunrise is at 08:51 and sunset at 15:00 CET.
Sunshine
With an average of 2.5h of sunshine, December has the least sunshine of the year.UV index
In December, the average daily maximum UV index in Irsta is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Irsta, Sweden
- Average high temperature in December: 0.5°C
The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (-1.2°C).
- Average low temperature in December: -3.1°C
The month with the highest average low temperature is July (12.5°C).
The coldest months (with the lowest average low temperature) are January and February (-4.9°C).
Average pressure in December
Irsta, Sweden
- Average pressure in December: 1007.7mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).
Average wind speed in December
Irsta, Sweden
- Average wind speed in December: 15.2km/h
The windiest month (with the highest average wind speed) is December (15.2km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in December
Irsta, Sweden
- Average humidity in December: 89%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Irsta, Sweden
- Average rainfall in December: 12mm
The wettest month (with the highest rainfall) is July (25mm).
The driest months (with the least rainfall) are February and April (9mm).
Average rainfall days in December
Irsta, Sweden
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is January (4 days).
Average snowfall in December
Irsta, Sweden
- Average snowfall in December: 31mm
The month with the highest snowfall is January (39mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Irsta, Sweden
- Average snowfall days in December: 8.6 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Irsta, Sweden
- Average daylight in December: 6h and 12min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in December: 2h and 30min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Irsta, Sweden
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is July (14.4 days).
Average UV index in December
Irsta, Sweden
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Irsta, Sweden
- Average cloud cover in December: 65
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are June and July (Cloud cover 42).
Average visibility in December
Irsta, Sweden
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, November and December (8km).
