December weather forecast
Iisaku, Estonia

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Weather in December

December ushers in the heart of winter in Iisaku, Estonia with striking similarities to January's weather patterns. This month's most notable bombardment of snow, coming in at 138mm (5.43"), sets up the grounds for a white Christmas. As the transition from December into January occurs, anticipate the winter months ahead to carry on with a steady pattern of cold temperatures, snow, and shorter daylight hours.

Temperature

In Iisaku, the average high-temperature in December slightly decreases from a wintry 4.3°C (39.7°F) in November to a still icy 0.1°C (32.2°F). In Iisaku, the nightly December temperatures experience a slight descent from daily highs to an average low of -2.5°C (27.5°F).

Humidity

In Iisaku, Estonia, the average relative humidity in December is 89%.

Rainfall

In December, the rain falls for 9.1 days. Throughout December, 42mm (1.65") of precipitation is accumulated. In Iisaku, during the entire year, the rain falls for 151.8 days and collects up to 510mm (20.08") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Iisaku. In December, in Iisaku, it is snowing for 18.7 days. Throughout December, 138mm (5.43") of snow is accumulated. Throughout the year, in Iisaku, there are 90.8 snowfall days, and 773mm (30.43") of snow is accumulated.

Daylight

With an average of 6h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:39 and sunset at 15:20. On the last day of December, in Iisaku, sunrise is at 09:05 and sunset at 15:22 EET.

Sunshine

With an average of 1.6h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index in Iisaku are January through March, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 1 during December translates into the following directions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

How cold is December in Iisaku?

The high-temperature during December is 0.1°C (32.2°F) and the low-temperature is -2.5°C (27.5°F).

What is the average humidity in December in Iisaku?

In Iisaku, Estonia, the average relative humidity in December is 89%.

How many days does it rain in December in Iisaku?

In December, the rain falls for 9.1 days. Throughout December, 42mm (1.65") of precipitation is accumulated.

How much does it snow in Iisaku in December?

In Iisaku, Estonia, in December, snow falls for 18.7 days, with typically accumulated 138mm (5.43") of snow.

What is the month with the shortest days in Iisaku?

December has the shortest days of the year, with an average of 6h and 18min of daylight.

What is the average length of the day in December in Iisaku?

In Iisaku, the average day length in December is 6h and 19min.

What time are sunrise and sunset in December in Iisaku?

In December, on the first day of the month, sunrise is at 08:39 and sunset at 15:20. On the last day of the month, sunrise is at 09:05 and sunset at 15:22 EET.

What is the month with the least sunshine in Iisaku?

The month with the least sunshine is December, with an average of 1.6h of sunshine.

How long on average sun shines in December in Iisaku?

In Iisaku, the average sunshine duration in December is 1.6h.

What are the months with the lowest UV index in Iisaku?

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

How high is the UV index in December in Iisaku?

In Iisaku, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Iisaku, Estonia

Average temperature in December - Iisaku, Estonia
  • Average high temperature in December: 0.1°C

The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-2.8°C).

  • Average low temperature in December: -2.5°C

The month with the highest average low temperature is July (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (-6°C).

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Average pressure in December
Iisaku, Estonia

Average pressure in December - Iisaku, Estonia
  • Average pressure in December: 1010mbar

The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1010mbar).

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Average wind speed in December
Iisaku, Estonia

Average wind speed in December - Iisaku, Estonia
  • Average wind speed in December: 20.8km/h

The windiest month (with the highest average wind speed) is December (20.8km/h).
The calmest month (with the lowest average wind speed) is May (13.4km/h).

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Average humidity in December
Iisaku, Estonia

Average humidity in December - Iisaku, Estonia
  • Average humidity in December: 89%

The month with the highest relative humidity is February (92%).
The months with the lowest relative humidity are May and June (73%).

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Average rainfall in December
Iisaku, Estonia

Average rainfall in December - Iisaku, Estonia
  • Average rainfall in December: 42mm

The wettest month (with the highest rainfall) is August (65mm).
The driest month (with the least rainfall) is April (29mm).

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Average rainfall days in December
Iisaku, Estonia

Average rainfall days in December - Iisaku, Estonia
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (4.8 days).

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Average snowfall in December
Iisaku, Estonia

Average snowfall in December - Iisaku, Estonia
  • Average snowfall in December: 138mm

The month with the highest snowfall is January (164mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in December
Iisaku, Estonia

Average snowfall days in December - Iisaku, Estonia
  • Average snowfall days in December: 18.7 days

The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Iisaku, Estonia

Average daylight in December / Average sunshine in December - Iisaku, Estonia
  • Average daylight in December: 6h and 2min

The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).

  • Average sunshine in December: 1h and 4min

The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).

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Average sunshine days in December
Iisaku, Estonia

Average sunshine days in December - Iisaku, Estonia
  • Average sunshine days in December: 4.6 days

The month with the most sunshine days is May (16 days).
The month with the least sunshine days is December (4.6 days).

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Average UV index in December
Iisaku, Estonia

Average UV index in December - Iisaku, Estonia
  • Average UV index in December: 1

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

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Average cloud cover in December
Iisaku, Estonia

Average cloud cover in December - Iisaku, Estonia
  • Average cloud cover in December: 81

The month with the most cloud cover is December (Cloud cover 81).
The months with the least cloud cover are July and August (Cloud cover 37).

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Average visibility in December
Iisaku, Estonia

Average visibility in December - Iisaku, Estonia
  • Average visibility in December: 8km

The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is February (7km).

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Iisaku, Estonia

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