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 sea temperature 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
December brings a slight decrease in temperature, down from a wintry 1.5°C (34.7°F) in November to a subzero cold -2.1°C (28.2°F). Luleå registers a gentle descent to an average nighttime low of -5.7°C (21.7°F) in December from its daytime highs.Humidity
In December, the average relative humidity is 89%.Rainfall
December is the month with the most rainfall in Luleå. Rain falls for 6.3 days and accumulates 46mm (1.81") of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 15 days and typically aggregates up to 178mm (7.01") of snow.Sea temperature
In December, the average sea temperature is 2.8°C (37°F).Note: In the scenario of swimming, this is assessed as life-threatening and highly risky. The chilling water causes severe discomfort and induces instant hyperventilation. A specialized swimsuit is necessary to counter thermal damage.
Daylight
The month with the shortest days in Luleå is December, with an average of 3h and 30min of daylight.On the first day of the month, sunrise is at 09:12 and sunset at 13:28. On the last day of December, in Luleå, sunrise is at 09:49 and sunset at 13:19 CET.
Sunshine
With an average of 1.3h 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 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 1 in December translates into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
How cold is it in Luleå in December?
What is the average humidity in December in Luleå?
What is the wettest month in Luleå?
How much does it rain in Luleå in December?
What is the snowiest month in Luleå?
How many days does it snow in December in Luleå?
How cold is the water in December in Luleå?
What is the month with the shortest days in Luleå?
What is the average length of the day in December in Luleå?
What time are sunrise and sunset in December in Luleå?
What is the month with the least sunshine in Luleå?
How long on average sun shines in December in Luleå?
When is the lowest UV index in Luleå?
What is the UV index intensity in December in Luleå?
Average temperature in December
Luleå, Sweden
- Average high temperature in December: -2.1°C
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (-5.7°C).
- Average low temperature in December: -5.7°C
The month with the highest average low temperature is July (13°C).
The coldest month (with the lowest average low temperature) is February (-10.6°C).
Average pressure in December
Luleå, Sweden
- Average pressure in December: 1004.8mbar
The month with the highest atmospheric pressure is May (1014mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).
Average wind speed in December
Luleå, Sweden
- Average wind speed in December: 17.3km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is April (13km/h).
Average humidity in December
Luleå, Sweden
- Average humidity in December: 89%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is June (70%).
Average rainfall in December
Luleå, Sweden
- Average rainfall in December: 46mm
The wettest month (with the highest rainfall) is December (46mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in December
Luleå, Sweden
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is August (13.9 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in December
Luleå, Sweden
- Average snowfall in December: 178mm
The month with the highest snowfall is December (178mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Luleå, Sweden
- Average snowfall days in December: 15 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Luleå, Sweden
- Average sea temperature in December: 2.8°C
The best month for swimming (with the highest average sea temperature) is July (16.3°C).
The coldest month (with the lowest average sea temperature) is February (-0.7°C).
Average daylight in December /
Average sunshine in December
Luleå, Sweden
- Average daylight in December: 3h and 3min
The month with the longest days is June (Average daylight: 22h and 30min).
The month with the shortest days is December (Average daylight: 3h and 30min).
- Average sunshine in December: 1h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).
Average sunshine days in December
Luleå, Sweden
- Average sunshine days in December: 11.6 days
The months with the most sunshine days are June and October (16.5 days).
The month with the least sunshine days is December (11.6 days).
Average UV index in December
Luleå, Sweden
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Luleå, Sweden
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in December
Luleå, Sweden
- Average visibility in December: 8km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March and April (7km).
Luleå, Sweden
Weather forecast for your location
2. Allow the app to use your location
