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
Transition into December subtly marks a drop in the average high-temperature, moderately moving from an icy 4.5°C (40.1°F) in November to a still cold 1.1°C (34°F). Nagu's December nights demonstrate minimal variation from the daytime temperatures, with an average of -2.2°C (28°F).Humidity
In Nagu, the average relative humidity in December is 87%.Rainfall
In Nagu, Finland, during December, the rain falls for 11.1 days and regularly aggregates up to 41mm (1.61") of precipitation. Throughout the year, there are 133.7 rainfall days, and 390mm (15.35") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Nagu, in December, during 12.4 snowfall days, 82mm (3.23") of snow is typically accumulated. Throughout the year, there are 60.5 snowfall days, and 454mm (17.87") of snow is accumulated.Sea temperature
In December, the average sea temperature is 1.8°C (35.2°F).Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.
Daylight
December has the shortest days of the year, with an average of 6h and 0min of daylight.On the first day of December, sunrise is at 09:09 and sunset at 15:33. On the last day of the month, sunrise is at 09:36 and sunset at 15:34 EET.
Sunshine
The month with the least sunshine in Nagu, Finland, is December, with an average of 2h of sunshine.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 of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 1 in December translates into the following instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Nagu?
What is the average humidity in December in Nagu?
How much does it rain in Nagu in December?
How much does it snow in Nagu in December?
What is the sea temperature in December in Nagu?
What is the month with the shortest days in Nagu?
How many hours of daylight does Nagu have in December?
When is the sunrise / sunset in December in Nagu?
What is the month with the least sunshine in Nagu?
How many hours of sunshine does Nagu have in December?
When is the lowest UV index in Nagu?
What is the UV index intensity in December in Nagu?
Average temperature in December
Nagu, Finland
- Average high temperature in December: 1.1°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in December: -2.2°C
The months with the highest average low temperature are July and August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-5.6°C).
Average pressure in December
Nagu, Finland
- Average pressure in December: 1007.6mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in December
Nagu, Finland
- Average wind speed in December: 20.4km/h
The windiest month (with the highest average wind speed) is December (20.4km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).
Average humidity in December
Nagu, Finland
- Average humidity in December: 87%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Nagu, Finland
- Average rainfall in December: 41mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Nagu, Finland
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in December
Nagu, Finland
- Average snowfall in December: 82mm
The month with the highest snowfall is January (103mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Nagu, Finland
- Average snowfall days in December: 12.4 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Nagu, Finland
- Average sea temperature in December: 1.8°C
The best month for swimming (with the highest average sea temperature) is August (12.4°C).
The coldest months (with the lowest average sea temperature) are February and March (-0.2°C).
Average daylight in December /
Average sunshine in December
Nagu, Finland
- 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 0min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in December
Nagu, Finland
- Average sunshine days in December: 9.6 days
The month with the most sunshine days is May (17.2 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in December
Nagu, Finland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (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
Nagu, Finland
- Average cloud cover in December: 71
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in December
Nagu, Finland
- Average visibility in December: 9km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are February and March (8km).
