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 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
As Jakobstad enters December, the average high-temperature subtly lowers from the a wintry 3.5°C (38.3°F) of November to a freezing cold -0.2°C (31.6°F). Jakobstad encounters an average temperature dip to -2.5°C (27.5°F) throughout December, subtly lower than its daytime maximum.Humidity
In December, the average relative humidity in Jakobstad is 87%.Rainfall
In Jakobstad, during December, the rain falls for 7.4 days and regularly aggregates up to 37mm (1.46") of precipitation. In Jakobstad, Finland, during the entire year, the rain falls for 134.8 days and collects up to 453mm (17.83") of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, in Jakobstad, it is snowing for 13.9 days. Throughout December, 99mm (3.9") of snow is accumulated. Throughout the year, in Jakobstad, there are 75.8 snowfall days, and 598mm (23.54") of snow is accumulated.Daylight
December has the shortest days of the year in Jakobstad, with an average of 4h and 36min of daylight.On the first day of the month, sunrise is at 09:42 and sunset at 14:54. On the last day of December, in Jakobstad, sunrise is at 10:13 and sunset at 14:50 EET.
Sunshine
The month with the least sunshine in Jakobstad is December, with an average of 1.1h of sunshine.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 1 during December leads to these advisories:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Experience reduced UV exposure by about half when donning a wide-brim hat. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
How cold is December in Jakobstad?
What is the average humidity in December in Jakobstad?
How much does it rain in Jakobstad in December?
How much does it snow in Jakobstad in December?
What is the month with the shortest days in Jakobstad?
How many hours of daylight does Jakobstad have in December?
When is the sunrise / sunset in December in Jakobstad?
What is the month with the least sunshine in Jakobstad?
How long on average sun shines in December in Jakobstad?
What are the months with the lowest UV index in Jakobstad?
What is the UV index intensity in December in Jakobstad?
Average temperature in December
Jakobstad, Finland
- Average high temperature in December: -0.2°C
The warmest month (with the highest average high temperature) is July (17.6°C).
The months with the lowest average high temperature are January and February (-3.3°C).
- Average low temperature in December: -2.5°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (-6.7°C).
Average pressure in December
Jakobstad, Finland
- Average pressure in December: 1005.4mbar
The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1005.4mbar).
Average wind speed in December
Jakobstad, Finland
- Average wind speed in December: 22.3km/h
The windiest month (with the highest average wind speed) is December (22.3km/h).
The calmest month (with the lowest average wind speed) is July (15.1km/h).
Average humidity in December
Jakobstad, Finland
- Average humidity in December: 87%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is June (74%).
Average rainfall in December
Jakobstad, Finland
- Average rainfall in December: 37mm
The wettest month (with the highest rainfall) is August (57mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in December
Jakobstad, Finland
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is August (17.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in December
Jakobstad, Finland
- Average snowfall in December: 99mm
The month with the highest snowfall is March (147mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Jakobstad, Finland
- Average snowfall days in December: 13.9 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jakobstad, Finland
- Average daylight in December: 4h and 4min
The month with the longest days is June (Average daylight: 20h and 30min).
The month with the shortest days is December (Average daylight: 4h and 36min).
- Average sunshine in December: 1h and 1min
The month with the most sunshine is June (Average sunshine: 13h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).
Average sunshine days in December
Jakobstad, Finland
- Average sunshine days in December: 10.4 days
The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is December (10.4 days).
Average UV index in December
Jakobstad, Finland
- 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 and December (UV index 1).
Average cloud cover in December
Jakobstad, Finland
- Average cloud cover in December: 71
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are June and July (Cloud cover 38).
Average visibility in December
Jakobstad, Finland
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and April (8km).
Jakobstad, Finland
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