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December Weather in Saeynaetsalo, Finland

Last updated: August 23, 2025

In Saeynaetsalo, Finland, the average temperature in December hovers around -3°C (26°F), with fluctuations that can see lows of -22°C (-7°F) and highs reaching up to 4°C (40°F). This month, brace yourself for 67 mm (2.6 in) of precipitation over roughly 14 days, contributing to an average humidity level of a staggering 98%.

December Temperature in Saeynaetsalo

In December in Saeynaetsalo, the average temperature is -3°C (26°F). Maximums can reach 4°C (40°F) and minimums can drop to as low as -22°C (-7°F). Travelers should be prepared for cold weather and pack accordingly to ensure a comfortable experience.

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

The chart illustrates December temperature patterns in Saeynaetsalo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saeynaetsalo, December typically has an average temperature of -3°C (26°F), with highs reaching up to 4°C (40°F) and lows dropping to around -22°C (-7°F).
JanFebMarAprMayJunJulAugSepOctNovDec222127364860635950413426
Data source: Temperature data for Saeynaetsalo generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Saeynaetsalo

In Saeynaetsalo in December, the precipitation amount is 67 mm (2.6 in) spread over 14 days.

December Precipitation Trends in Saeynaetsalo

The chart displays monthly precipitation patterns in Saeynaetsalo, 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 Saeynaetsalo, December typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec464442456361718773766167
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Saeynaetsalo

In Saeynaetsalo in December humidity is 98%. With an average temperature of -3°C (26°F), this humidity feels like a biting chill that creeps into your bones, making traveling uncomfortable and potentially hazardous as you navigate through the frosty air.

December Average Humidity in Saeynaetsalo

This chart illustrates the average monthly humidity levels in Saeynaetsalo, 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 Saeynaetsalo is approximately 98%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec99%97%95%87%78%74%80%85%91%95%94%98%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Saeynaetsalo

In Saeynaetsalo 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 Saeynaetsalo.

Maximum UV Index Levels in Saeynaetsalo for December

The chart shows the monthly maximum UV Index (UVI) for Saeynaetsalo 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 Saeynaetsalo typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456653211
Data source: Saeynaetsalo 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 Saeynaetsalo Compares to Other Months

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

This table compares monthly weather conditions in Saeynaetsalo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)46 mm (1.8 inches)99%low
February Weather-6°C (21°F)44 mm (1.7 inches)97%low
March Weather-3°C (28°F)42 mm (1.6 inches)95%moderate
April Weather2°C (36°F)45 mm (1.8 inches)87%moderate
May Weather9°C (48°F)63 mm (2.5 inches)78%moderate
June Weather16°C (60°F)60 mm (2.4 inches)74%high
July Weather17°C (63°F)71 mm (2.8 inches)80%high
August Weather15°C (60°F)87 mm (3.4 inches)85%moderate
September Weather10°C (50°F)73 mm (2.9 inches)91%moderate
October Weather5°C (41°F)76 mm (3.0 inches)95%low
November Weather1°C (34°F)61 mm (2.4 inches)94%low
December Weather-3°C (26°F)67 mm (2.6 inches)98%low

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