December weather forecastGrisslehamn, Sweden
December
Weather in December
The first month of the winter, December, is also a wintry month in Grisslehamn, Sweden, with an average temperature ranging between min -0.5°C (31.1°F) and max 2.1°C (35.8°F).Temperature
December reveals a small adjustment in temperature, transitioning from an average high of 5.5°C (41.9°F) in November to a still icy 2.1°C (35.8°F). Grisslehamn sees a minor drop to an average minimum temperature of -0.5°C (31.1°F) during the night in the month of December.Humidity
In Grisslehamn, the average relative humidity in December is 84%.Rainfall
In Grisslehamn, Sweden, during December, the rain falls for 9.2 days and regularly aggregates up to 29mm (1.14") of precipitation. Throughout the year, in Grisslehamn, there are 132.8 rainfall days, and 348mm (13.7") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Grisslehamn, during December, snow falls for 10.1 days and regularly aggregates up to 51mm (2.01") of snow. In Grisslehamn, during the entire year, snow falls for 46.3 days and aggregates up to 244mm (9.61") of snow.Daylight
With an average of 6h and 0min of daylight, December has the shortest days of the year in Grisslehamn.On the first day of the month, sunrise is at 08:21 and sunset at 14:46. On the last day of December, in Grisslehamn, sunrise is at 08:47 and sunset at 14:48 CET.
Sunshine
The month with the least sunshine is December, with an average of 2.5h of sunshine.UV index
The average daily maximum UV index in December in Grisslehamn is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 during December translates into the following guidance:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grisslehamn, Sweden
- Average high temperature in December: 2.1°C
The warmest month (with the highest average high temperature) is August (18.8°C).
The month with the lowest average high temperature is February (0.1°C).
- Average low temperature in December: -0.5°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is February (-2.5°C).
Average pressure in December
Grisslehamn, Sweden
- Average pressure in December: 1007.1mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.1mbar).
Average wind speed in December
Grisslehamn, Sweden
- Average wind speed in December: 24.3km/h
The windiest month (with the highest average wind speed) is December (24.3km/h).
The calmest month (with the lowest average wind speed) is July (16.3km/h).
Average humidity in December
Grisslehamn, Sweden
- Average humidity in December: 84%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is May (76%).
Average rainfall in December
Grisslehamn, Sweden
- Average rainfall in December: 29mm
The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in December
Grisslehamn, Sweden
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is August (16.2 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
Grisslehamn, Sweden
- Average snowfall in December: 51mm
The month with the highest snowfall is March (65mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Grisslehamn, Sweden
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grisslehamn, Sweden
- Average daylight in December: 6h and 0min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in December: 2h and 30min
The month with the most sunshine is June (Average sunshine: 12h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Grisslehamn, Sweden
- Average sunshine days in December: 11.5 days
The months with the most sunshine days are April and May (16.3 days).
The month with the least sunshine days is December (11.5 days).
Average UV index in December
Grisslehamn, Sweden
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Grisslehamn, Sweden
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Grisslehamn, Sweden
- Average visibility in December: 9km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).
