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January Weather in Jalasjaervi, Finland

Last updated: August 23, 2025

In Jalasjaervi, Finland, the average temperature in January hovers around -4°C (24°F), with a chilly minimum reaching as low as -28°C (-19°F) and a maximum of 8°C (46°F). Expect 38 mm (1.5 in) of precipitation spread over 10 days, and be prepared for the high humidity, averaging a brisk 97%.

January Temperature in Jalasjaervi

In January in Jalasjaervi, the average temperature is -4°C (24°F). The maximum can reach 8°C (46°F) and the minimum can be as low as -28°C (-19°F). This range of temperatures suggests that travelers should prepare for cold weather and pack accordingly.

January Weather in Jalasjaervi: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Jalasjaervi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jalasjaervi, January typically has an average temperature of -4°C (24°F), with highs reaching up to 8°C (46°F) and lows dropping to around -28°C (-19°F).
JanFebMarAprMayJunJulAugSepOctNovDec242229384860625950413427
Data source: Temperature data for Jalasjaervi 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.

January Precipitation in Jalasjaervi

In Jalasjaervi in January, the precipitation amount is 38 mm (1.5 in) over the course of 10 days.

January Precipitation Trends in Jalasjaervi

The chart displays monthly precipitation patterns in Jalasjaervi, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Jalasjaervi, January typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec383943445860579269695951
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Jalasjaervi

In Jalasjaervi in January humidity is 97%. With an average temperature of -4°C (24°F), this humidity feels like a biting chill that seeps through your clothing, making outdoor exploration uncomfortable and prompting travelers to seek refuge indoors more often than not.

January Average Humidity in Jalasjaervi

This chart illustrates the average monthly humidity levels in Jalasjaervi, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Jalasjaervi is approximately 97%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%95%92%85%77%74%79%82%89%93%93%95%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Jalasjaervi

In Jalasjaervi in January, 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 Jalasjaervi.

Maximum UV Index Levels in Jalasjaervi for January

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

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

This table compares monthly weather conditions in Jalasjaervi, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (24°F)38 mm (1.5 inches)97%low
February Weather-5°C (22°F)39 mm (1.5 inches)95%low
March Weather-2°C (29°F)43 mm (1.7 inches)92%moderate
April Weather3°C (38°F)44 mm (1.7 inches)85%moderate
May Weather9°C (49°F)58 mm (2.3 inches)77%moderate
June Weather15°C (60°F)60 mm (2.4 inches)74%high
July Weather17°C (62°F)57 mm (2.2 inches)79%high
August Weather15°C (59°F)92 mm (3.6 inches)82%moderate
September Weather10°C (50°F)69 mm (2.7 inches)89%moderate
October Weather5°C (41°F)69 mm (2.7 inches)93%low
November Weather1°C (34°F)59 mm (2.3 inches)93%low
December Weather-3°C (28°F)51 mm (2.0 inches)95%low

Compare Jalasjaervi's Climate with Cities Worldwide