December weather forecastIi, Finland
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Ii, Finland, with an average temperature ranging between min -6.4°C (20.5°F) and max -3°C (26.6°F).Temperature
Transitioning from November to December involves a subtle drop in average high-temperatures, descending from a cold 1.1°C (34°F) to a freezing cold -3°C (26.6°F). December records a small disparity from daytime temperatures, marking an average low-temperature of -6.4°C (20.5°F) in Ii, Finland.Humidity
In Ii, Finland, the average relative humidity in December is 93%.Rainfall
In Ii, during December, the rain falls for 6.4 days and regularly aggregates up to 44mm (1.73") of precipitation. In Ii, during the entire year, the rain falls for 117.3 days and collects up to 434mm (17.09") of precipitation.Snowfall
January through May, September through December are months with snowfall. In Ii, Finland, during December, snow falls for 20.9 days and regularly aggregates up to 230mm (9.06") of snow. In Ii, during the entire year, snow falls for 107.1 days and aggregates up to 1131mm (44.53") of snow.Daylight
December has the shortest days of the year in Ii, with an average of 3h and 42min of daylight.On the first day of the month, sunrise is at 09:54 and sunset at 14:20. On the last day of December, sunrise is at 10:31 and sunset at 14:11 EET.
Sunshine
December has the least sunshine of the year in Ii, with an average of 1h 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 reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 1 during December translates into the following directions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ii, Finland
- Average high temperature in December: -3°C
The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is January (-6.1°C).
- Average low temperature in December: -6.4°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 (-10.6°C).
Average pressure in December
Ii, Finland
- Average pressure in December: 1005.4mbar
The month with the highest atmospheric pressure is May (1014mbar).
The month with the lowest atmospheric pressure is December (1005.4mbar).
Average wind speed in December
Ii, Finland
- Average wind speed in December: 13.5km/h
The windiest month (with the highest average wind speed) is November (13.7km/h).
The calmest month (with the lowest average wind speed) is July (10.6km/h).
Average humidity in December
Ii, Finland
- Average humidity in December: 93%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is June (69%).
Average rainfall in December
Ii, Finland
- Average rainfall in December: 44mm
The wettest month (with the highest rainfall) is July (59mm).
The driest months (with the least rainfall) are April and September (25mm).
Average rainfall days in December
Ii, Finland
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Ii, Finland
- Average snowfall in December: 230mm
The month with the highest snowfall is March (232mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Ii, Finland
- Average snowfall days in December: 20.9 days
The month with the highest number of snowfall days is January (21.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Ii, Finland
- Average daylight in December: 3h and 42min
The month with the longest days is June (Average daylight: 22h and 0min).
The month with the shortest days is December (Average daylight: 3h and 42min).
- Average sunshine in December: 1h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 0min).
Average sunshine days in December
Ii, Finland
- Average sunshine days in December: 7.4 days
The month with the most sunshine days is June (17 days).
The month with the least sunshine days is December (7.4 days).
Average UV index in December
Ii, 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
Ii, Finland
- Average cloud cover in December: 76
The month with the most cloud cover is February (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in December
Ii, Finland
- Average visibility in December: 7km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (6km).
