December weather forecast
Ingå, Finland

December

Weather in December

The first month of the winter, December, is also an icy month in Ingå, Finland, with an average temperature varying between 1.7°C (35.1°F) and -0.9°C (30.4°F).

Temperature

Ingå observes a small decrease in the average high-temperature with the arrival of December, falling from November's icy 5°C (41°F) to a still cold 1.7°C (35.1°F). Nighttime, during December, brings an average low of -0.9°C (30.4°F), a modest reduction from the day's peak.

Humidity

In December, the average relative humidity in Ingå is 86%.

Rainfall

In Ingå, in December, it is raining for 14 days, with typically 55mm (2.17") of accumulated precipitation. In Ingå, during the entire year, the rain falls for 165.7 days and collects up to 567mm (22.32") of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Ingå, in December, during 14.2 snowfall days, 119mm (4.69") of snow is typically accumulated. In Ingå, during the entire year, snow falls for 75.3 days and aggregates up to 562mm (22.13") of snow.

Sea temperature

In Ingå, the average seawater temperature in December is 4°C (39.2°F).
Note: In swimming scenarios, this is an immediate danger to life. Breathing becomes uncontrollable instantly, obstructing any form of clear thinking. A specialized swimsuit is indispensable to lessen thermal leakage.

Daylight

With an average of 6h and 0min of daylight, December has the shortest days of the year.
On the first day of December in Ingå, sunrise is at 09:00 and sunset at 15:26. On the last day of the month, sunrise is at 09:26 and sunset at 15:27 EET.

Sunshine

December has the least sunshine of the year in Ingå, with an average of 1.8h of sunshine.

UV index

The months with the lowest UV index in Ingå are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high UV index of 1 in December translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take note! UV radiation from the Sun can double in intensity due to snow reflection.

Frequently asked questions

How cold is it in Ingå in December?
December temperatures vary between a high-temperature of 1.7°C (35.1°F) and a low-temperature of -0.9°C (30.4°F).
What is the average humidity in December in Ingå?
The average relative humidity in December in Ingå, Finland, is 86%.
How much does it rain in Ingå in December?
In December, in Ingå, Finland, the rain falls for 14 days. Throughout December, 55mm (2.17") of precipitation is accumulated.
How much does it snow in Ingå in December?
In Ingå, Finland, in December, snow falls for 14.2 days, with typically accumulated 119mm (4.69") of snow.
What is the water temperature in December in Ingå?
In Ingå, Finland, in December, the average water temperature is 4°C (39.2°F). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.
What is the month with the shortest days in Ingå?
December has the shortest days of the year, with an average of 6h and 0min of daylight.
What is the average length of the day in December in Ingå?
The average day length in December in Ingå is 6h and 2min.
What time are sunrise and sunset in December in Ingå?
In December, on the first day of the month, sunrise is at 09:00 and sunset at 15:26. On the last day of the month, sunrise is at 09:26 and sunset at 15:27 EET.
What is the month with the least sunshine in Ingå?
The month with the least sunshine in Ingå, Finland, is December, with an average of 1.8h of sunshine.
How many hours of sunshine does Ingå have in December?
In Ingå, Finland, the average sunshine duration in December is 1.8h.
What is the month with the lowest UV index in Ingå?
The months with the lowest UV index in Ingå are January, February and December, with an average maximum UV index of 1.
What is the UV index reading in December in Ingå?
The average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to 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 sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Ingå, Finland
  • Average high temperature in December: 1.7°C

The warmest month (with the highest average high temperature) is July (19.4°C).
The month with the lowest average high temperature is January (-1.3°C).

  • Average low temperature in December: -0.9°C

The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is January (-4.4°C).

Average pressure in December
Ingå, Finland
  • Average pressure in December: 1008.5mbar

The month with the highest atmospheric pressure is May (1015mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).

Average wind speed in December
Ingå, Finland
  • Average wind speed in December: 24km/h

The windiest month (with the highest average wind speed) is December (24km/h).
The calmest month (with the lowest average wind speed) is May (14.9km/h).

Average humidity in December
Ingå, Finland
  • Average humidity in December: 86%

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (74%).

Average rainfall in December
Ingå, Finland
  • Average rainfall in December: 55mm

The wettest month (with the highest rainfall) is July (66mm).
The driest month (with the least rainfall) is April (26mm).

Average rainfall days in December
Ingå, Finland
  • Average rainfall days in December: 14 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (7 days).

Average snowfall in December
Ingå, Finland
  • Average snowfall in December: 119mm

The month with the highest snowfall is January (136mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Ingå, Finland
  • Average snowfall days in December: 14.2 days

The month with the highest number of snowfall days is February (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in December
Ingå, Finland
  • Average sea temperature in December: 4°C

The best month for swimming (with the highest average sea temperature) is August (18.4°C).
The coldest months (with the lowest average sea temperature) are February and March (0.1°C).

Average daylight in December /
Average sunshine in December
Ingå, Finland
  • Average daylight in December: 6h and 0min

The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 0min).

  • Average sunshine in December: 1h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).

Average sunshine days in December
Ingå, Finland
  • Average sunshine days in December: 5.4 days

The month with the most sunshine days is May (15.4 days).
The month with the least sunshine days is December (5.4 days).

Average UV index in December
Ingå, Finland
  • Average UV index in December: 1

The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in December
Ingå, Finland
  • Average cloud cover in December: 75

The month with the most cloud cover is December (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 36).

Average visibility in December
Ingå, Finland
  • Average visibility in December: 8km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).

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