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December Weather in Iisaku, Estonia

Last updated: August 23, 2025

In Iisaku, Estonia, the average temperature in December hovers around -2°C (29°F), with extremes ranging from a brisk -20°C (-4°F) to a milder 7°C (44°F). Expect 70 mm (2.7 in) of precipitation spread over about 16 days, creating a notably humid atmosphere with an average humidity of 93%. Prepare for cold and damp conditions as you embrace the climate of this captivating locale!

December Temperature in Iisaku

In December in Iisaku, the average temperature is -2°C (29°F), with maximums reaching 7°C (44°F) and minimums dropping as low as -20°C (-4°F). Travelers should be well-prepared for cold weather and potential extreme temperatures during this time.

December Weather in Iisaku: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Iisaku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iisaku, December typically has an average temperature of -2°C (29°F), with highs reaching up to 7°C (44°F) and lows dropping to around -20°C (-4°F).
JanFebMarAprMayJunJulAugSepOctNovDec272630395163656355453829
Data source: Temperature data for Iisaku generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Iisaku

In Iisaku in December, the precipitation amount is 70 mm (2.7 in) distributed over 16 days.

December Precipitation Trends in Iisaku

The chart displays monthly precipitation patterns in Iisaku, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Iisaku, December typically receives around 70 mm (2.7 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec4950485062647990741007670
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Iisaku

In Iisaku in December humidity is 93%. With an average temperature of -2°C (29°F), this humidity feels like a dense, frosty blanket that clings to you, making the cold seep into your bones and transforming outdoor activities into a chilly challenge.

December Average Humidity in Iisaku

This chart illustrates the average monthly humidity levels in Iisaku, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Iisaku is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%93%90%87%73%77%80%84%89%93%93%93%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Iisaku

In Iisaku in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Iisaku.

Maximum UV Index Levels in Iisaku for December

The chart shows the monthly maximum UV Index (UVI) for Iisaku in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Iisaku typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457764211
Data source: Iisaku December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Iisaku Compares to Other Months

Weather in Iisaku varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Iisaku, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Iisaku, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)49 mm (1.9 inches)95%low
February Weather-3°C (26°F)49 mm (1.9 inches)93%low
March Weather-1°C (30°F)48 mm (1.9 inches)90%moderate
April Weather4°C (39°F)50 mm (2.0 inches)87%moderate
May Weather11°C (51°F)62 mm (2.5 inches)73%moderate
June Weather17°C (63°F)64 mm (2.5 inches)77%high
July Weather18°C (66°F)79 mm (3.1 inches)80%high
August Weather17°C (63°F)90 mm (3.6 inches)84%high
September Weather13°C (55°F)74 mm (2.9 inches)89%moderate
October Weather7°C (46°F)100 mm (3.9 inches)92%low
November Weather3°C (38°F)76 mm (3.0 inches)93%low
December Weather-2°C (29°F)70 mm (2.7 inches)93%low

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