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
December
Weather in December
Temperature
A subtle change in temperatures is noted as November gives way to December, with average highs reducing from a cold 5.7°C (42.3°F) to a still icy 2.3°C (36.1°F). Dalarö's nighttime temperature in December experiences a slight dip from daytime highs, falling to an average of -0.5°C (31.1°F).Humidity
The average relative humidity in December in Dalarö is 85%.Rainfall
In Dalarö, during December, the rain falls for 6.6 days and regularly aggregates up to 11mm (0.43") of precipitation. Throughout the year, in Dalarö, there are 88.9 rainfall days, and 116mm (4.57") of precipitation is accumulated.Snowfall
Months with snowfall in Dalarö are January through May, October through December. In Dalarö, in December, during 8 snowfall days, 18mm (0.71") of snow is typically accumulated. Throughout the year, there are 38.5 snowfall days, and 78mm (3.07") of snow is accumulated.Sea temperature
In Dalarö, the average seawater temperature in December is 4.8°C (40.6°F).Note: In swimming, this condition is considered life-threatening and perilous. The painful sensation of cold water leads to immediate hyperventilation. Utilizing a specialized swimsuit is critical to reduce thermal injury.
Daylight
December has the shortest days of the year, with an average of 6h and 18min of daylight.On the first day of the month, sunrise is at 08:15 and sunset at 14:55. On the last day of December, in Dalarö, sunrise is at 08:40 and sunset at 14:58 CET.
Sunshine
With an average of 2.5h of sunshine, December has the least sunshine of the year.UV index
In Dalarö, Sweden, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Dalarö?
What is the average humidity in December in Dalarö?
How much does it rain in Dalarö in December?
How many days does it snow in December in Dalarö?
What is the sea temperature in December in Dalarö?
What is the month with the shortest days in Dalarö?
What is the average length of the day in December in Dalarö?
What time are sunrise and sunset in December in Dalarö?
What is the month with the least sunshine in Dalarö?
How many hours of sunshine does Dalarö have in December?
What is the UV index intensity in December in Dalarö?
Average temperature in December
Dalarö, Sweden
- Average high temperature in December: 2.3°C
The warmest month (with the highest average high temperature) is July (19.5°C).
The month with the lowest average high temperature is February (0.3°C).
- Average low temperature in December: -0.5°C
The month with the highest average low temperature is August (14.4°C).
The coldest months (with the lowest average low temperature) are January and February (-2.3°C).
Average pressure in December
Dalarö, Sweden
- Average pressure in December: 1007.9mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).
Average wind speed in December
Dalarö, Sweden
- Average wind speed in December: 23.5km/h
The windiest month (with the highest average wind speed) is December (23.5km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in December
Dalarö, Sweden
- Average humidity in December: 85%
The month with the highest relative humidity is November (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Dalarö, Sweden
- Average rainfall in December: 11mm
The wettest months (with the highest rainfall) are July and August (14mm).
The driest month (with the least rainfall) is April (4mm).
Average rainfall days in December
Dalarö, Sweden
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is August (10.9 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Dalarö, Sweden
- Average snowfall in December: 18mm
The month with the highest snowfall is February (23mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Dalarö, Sweden
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Dalarö, Sweden
- Average sea temperature in December: 4.8°C
The best month for swimming (with the highest average sea temperature) is August (18.8°C).
The coldest month (with the lowest average sea temperature) is February (1°C).
Average daylight in December /
Average sunshine in December
Dalarö, Sweden
- Average daylight in December: 6h and 2min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in December: 2h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Dalarö, Sweden
- Average sunshine days in December: 14.4 days
The months with the most sunshine days are April and May (21.8 days).
The month with the least sunshine days is December (14.4 days).
Average UV index in December
Dalarö, 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
Dalarö, Sweden
- Average cloud cover in December: 64
The months with the most cloud cover are January and February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Dalarö, 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).
