December weather forecastKiiminki, Finland

December

Weather in December

The first month of the winter, December, is also a subzero cold month in Kiiminki, Finland, with an average temperature varying between -3°C (26.6°F) and -6.4°C (20.5°F).

Temperature

As December begins, there is a minor decrease in the average high-temperature, softly falling from an icy 1.1°C (34°F) in November to a freezing cold -3°C (26.6°F). The nights of December cool down to an average low of -6.4°C (20.5°F), subtly lower than daytime highs.

Humidity

In December, the average relative humidity in Kiiminki is 93%.

Rainfall

In Kiiminki, Finland, in December, it is raining for 6.4 days, with typically 44mm (1.73") of accumulated precipitation. In Kiiminki, during the entire year, the rain falls for 117.3 days and collects up to 434mm (17.09") of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In Kiiminki, in December, snow falls for 20.9 days, with typically accumulated 230mm (9.06") of snow. Throughout the year, there are 107.1 snowfall days, and 1131mm (44.53") of snow is accumulated.

Daylight

The month with the shortest days in Kiiminki is December, with an average of 3h and 48min of daylight.
On the first day of the month, sunrise is at 09:50 and sunset at 14:22. On the last day of December, in Kiiminki, sunrise is at 10:26 and sunset at 14:14 EET.

Sunshine

The month with the least sunshine is December, with an average of 1h of sunshine.

UV index

The months with the lowest UV index in Kiiminki are January through March, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 1 in December translates into this advice:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Enhance your sun protection with tightly woven, yet airy clothing. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

In December, the average high-temperature and low-temperature in Kiiminki, Finland, are -3°C (26.6°F) and -6.4°C (20.5°F) respectively.

In Kiiminki, Finland, the average relative humidity in December is 93%.

In Kiiminki, Finland, during December, the rain falls for 6.4 days and regularly aggregates up to 44mm (1.73") of precipitation.

In December, in Kiiminki, Finland, it is snowing for 20.9 days. Throughout December, 230mm (9.06") of snow is accumulated.

December has the shortest days of the year in Kiiminki, with an average of 3h and 48min of daylight.

The average day length in December is 3h and 49min.

In December, on the first day of the month, sunrise is at 09:50 and sunset at 14:22. On the last day of the month, in Kiiminki, sunrise is at 10:26 and sunset at 14:14 EET.

December has the least sunshine of the year in Kiiminki, with an average of 1h of sunshine.

In Kiiminki, the average sunshine duration in December is 1h.

The months with the lowest UV index in Kiiminki, Finland, are January through March, November and December, with an average maximum UV index of 1.

In Kiiminki, Finland, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Kiiminki, 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
Kiiminki, 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
Kiiminki, 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
Kiiminki, 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
Kiiminki, 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
Kiiminki, 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
Kiiminki, 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
Kiiminki, 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
Kiiminki, Finland

  • Average daylight in December: 3h and 48min

The month with the longest days is June (Average daylight: 21h and 48min).
The month with the shortest days is December (Average daylight: 3h and 48min).

  • 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
Kiiminki, 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
Kiiminki, 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
Kiiminki, 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
Kiiminki, 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).