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January Weather in Ilmajoki, Finland

Last updated: August 23, 2025

In January, the average temperature in Ilmajoki, Finland hovers around -4°C (25°F). While you might experience chilling lows of -28°C (-17°F), the mercury can occasionally rise to a maximum of 8°C (46°F). Prepare for some damp days, as precipitation averages 36 mm (1.4 in) over about 10 days. With an average humidity of 95%, expect a crisp and decidedly brisk atmosphere!

January Temperature in Ilmajoki

In January in Ilmajoki, the average temperature is -4°C (25°F), with maximums reaching 8°C (46°F) and minimums dropping as low as -28°C (-17°F). Travelers should be well-prepared for cold weather and extreme temperature fluctuations during this time.

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

The chart illustrates January temperature patterns in Ilmajoki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ilmajoki, January typically has an average temperature of -4°C (25°F), with highs reaching up to 8°C (46°F) and lows dropping to around -28°C (-17°F).
JanFebMarAprMayJunJulAugSepOctNovDec252229384859625950413428
Data source: Temperature data for Ilmajoki 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 Ilmajoki

In Ilmajoki in January, the precipitation amount is 36 mm (1.4 in) over a span of 10 days.

January Precipitation Trends in Ilmajoki

The chart displays monthly precipitation patterns in Ilmajoki, 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 Ilmajoki, January typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec373841435661579073735747
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Ilmajoki

In Ilmajoki in January humidity is 95%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that seeps into your bones, making outdoor travel uncomfortable and necessitating warm layers to combat the dampness.

January Average Humidity in Ilmajoki

This chart illustrates the average monthly humidity levels in Ilmajoki, 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 Ilmajoki is approximately 95%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%93%91%85%77%75%80%82%88%92%92%93%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Ilmajoki

In Ilmajoki 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 Ilmajoki.

Maximum UV Index Levels in Ilmajoki for January

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

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

This table compares monthly weather conditions in Ilmajoki, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)36 mm (1.4 inches)95%low
February Weather-5°C (23°F)38 mm (1.5 inches)93%low
March Weather-2°C (29°F)41 mm (1.6 inches)91%moderate
April Weather3°C (38°F)42 mm (1.7 inches)85%moderate
May Weather9°C (49°F)56 mm (2.2 inches)77%moderate
June Weather15°C (60°F)61 mm (2.4 inches)74%high
July Weather17°C (63°F)57 mm (2.2 inches)80%high
August Weather15°C (59°F)90 mm (3.5 inches)82%moderate
September Weather10°C (50°F)73 mm (2.9 inches)88%moderate
October Weather5°C (41°F)73 mm (2.9 inches)92%low
November Weather1°C (34°F)57 mm (2.2 inches)92%low
December Weather-2°C (28°F)47 mm (1.8 inches)93%low

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