December weather forecastKoiskala, Finland
December
Weather in December
December, the first month of the winter in Koiskala, is also a subzero cold month, with an average temperature fluctuating between -5.1°C (22.8°F) and -1.4°C (29.5°F).Temperature
A modest decline in the average high-temperature is seen during December, decreasing from an icy 2.3°C (36.1°F) in November to a subzero cold -1.4°C (29.5°F). The temperature in Koiskala during December sees a subtle transition from day to night, averaging a low of -5.1°C (22.8°F).Humidity
In Koiskala, the average relative humidity in December is 94%.Rainfall
In Koiskala, in December, during 8.2 rainfall days, 40mm (1.57") of precipitation is typically accumulated. Throughout the year, in Koiskala, there are 118.7 rainfall days, and 398mm (15.67") of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Koiskala. In December, it is snowing for 18.9 days. Throughout December, 189mm (7.44") of snow is accumulated. Throughout the year, in Koiskala, there are 93.7 snowfall days, and 918mm (36.14") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 5h and 42min of daylight.On the first day of the month, sunrise is at 09:01 and sunset at 15:10. On the last day of December, in Koiskala, sunrise is at 09:28 and sunset at 15:11 EET.
Sunshine
With an average of 1.4h 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 estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Stay sun-safe with clothing that is both closely woven and worn loosely. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Koiskala, Finland
- Average high temperature in December: -1.4°C
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (-4.5°C).
- Average low temperature in December: -5.1°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is January (-8.9°C).
Average pressure in December
Koiskala, Finland
- Average pressure in December: 1008.4mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1008.4mbar).
Average wind speed in December
Koiskala, Finland
- Average wind speed in December: 12km/h
The windiest month (with the highest average wind speed) is December (12km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).
Average humidity in December
Koiskala, Finland
- Average humidity in December: 94%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (67%).
Average rainfall in December
Koiskala, Finland
- Average rainfall in December: 40mm
The wettest month (with the highest rainfall) is July (46mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in December
Koiskala, Finland
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in December
Koiskala, Finland
- Average snowfall in December: 189mm
The month with the highest snowfall is January (196mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Koiskala, Finland
- Average snowfall days in December: 18.9 days
The months with the highest number of snowfall days are January and December (18.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Koiskala, Finland
- Average daylight in December: 5h and 42min
The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).
- Average sunshine in December: 1h and 24min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).
Average sunshine days in December
Koiskala, Finland
- Average sunshine days in December: 8.4 days
The months with the most sunshine days are May and August (17.6 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in December
Koiskala, 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, March, November and December (UV index 1).
Average cloud cover in December
Koiskala, Finland
- Average cloud cover in December: 80
The months with the most cloud cover are January and February (Cloud cover 81).
The month with the least cloud cover is August (Cloud cover 44).
Average visibility in December
Koiskala, Finland
- Average visibility in December: 6km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (5km).
