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January Weather in Yli-Ii, Finland

Last updated: August 23, 2025

In January, the average temperature in Yli-Ii, Finland hovers around -8°C (18°F). During this chillier month, residents can expect a minimum of -31°C (-24°F) and a maximum of 5°C (41°F). With about 45 mm (1.8 in) of precipitation spread over 10 days, conditions can be quite damp, supported by an average humidity of 100%. Get ready for a crisp and wet winter!

January Temperature in Yli-Ii

In January in Yli-Ii, the average temperature is -8°C (18°F). The maximum can reach 5°C (41°F), and the minimum can be as low as -31°C (-24°F). Be sure to pack warm clothing and prepare for potentially extreme cold conditions while traveling to Yli-Ii during this time.

January Weather in Yli-Ii: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Yli-Ii, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yli-Ii, January typically has an average temperature of -8°C (18°F), with highs reaching up to 5°C (41°F) and lows dropping to around -31°C (-24°F).
JanFebMarAprMayJunJulAugSepOctNovDec181624334557635748393023
Data source: Temperature data for Yli-Ii 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 Yli-Ii

In Yli-Ii in January, the precipitation amount is 45 mm (1.8 in) spread over a duration of 10 days.

January Precipitation Trends in Yli-Ii

The chart displays monthly precipitation patterns in Yli-Ii, 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 Yli-Ii, January typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec454346415166779576866763
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Yli-Ii

In Yli-Ii in January, humidity is 100%. With an average temperature of -8°C (18°F), this humidity feels like a biting chill that seeps through your layers, making every breath feel heavy and each step a challenge, creating an atmosphere that deters even the most adventurous travelers.

January Average Humidity in Yli-Ii

This chart illustrates the average monthly humidity levels in Yli-Ii, 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 Yli-Ii is approximately 100%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec100%98%95%87%81%77%79%84%90%95%95%99%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Yli-Ii

In Yli-Ii 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 Yli-Ii.

Maximum UV Index Levels in Yli-Ii for January

The chart shows the monthly maximum UV Index (UVI) for Yli-Ii 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 Yli-Ii typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112346643211
Data source: Yli-Ii 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 Yli-Ii Compares to Other Months

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

This table compares monthly weather conditions in Yli-Ii, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)45 mm (1.8 inches)100%low
February Weather-9°C (17°F)42 mm (1.7 inches)98%low
March Weather-4°C (25°F)46 mm (1.8 inches)95%low
April Weather1°C (34°F)41 mm (1.6 inches)87%moderate
May Weather7°C (45°F)51 mm (2.0 inches)81%moderate
June Weather14°C (58°F)66 mm (2.6 inches)77%high
July Weather17°C (63°F)77 mm (3.0 inches)79%high
August Weather14°C (58°F)95 mm (3.7 inches)84%moderate
September Weather9°C (49°F)76 mm (3.0 inches)90%moderate
October Weather4°C (39°F)86 mm (3.4 inches)95%low
November Weather-1°C (30°F)67 mm (2.6 inches)95%low
December Weather-5°C (23°F)63 mm (2.5 inches)99%low

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