January Weather in Iitti, Finland

Last updated: August 23, 2025

In Iitti, Finland, the average temperature in January hovers around -4°C (25°F), with extremes dipping as low as -25°C (-13°F) and rising to a maximum of 8°C (46°F). Expect about 49 mm (1.9 in) of precipitation spread over 11 days, and brace yourself for high average humidity at 98%.

January Temperature in Iitti

In January in Iitti, the average temperature is -4°C (25°F). The maximum can reach 8°C (46°F), while the minimum can drop as low as -25°C (-13°F). Travelers should prepare for cold temperatures and be equipped for potentially harsh winter conditions.

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

The chart illustrates January temperature patterns in Iitti, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iitti, 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 -25°C (-13°F).

Data source: Temperature data for Iitti generated using information from the Copernicus Climate Change Service.

January Precipitation in Iitti

In Iitti in January, the total precipitation amount is 49 mm (1.9 in) spread over 11 days.

January Precipitation Trends in Iitti

The chart displays monthly precipitation patterns in Iitti, 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 Iitti, January typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Iitti

In Iitti in January humidity is 98%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that clings to your skin, making every step feel more laborious as you navigate through the frosty air, dampening your spirits as well as your clothes.

January Average Humidity in Iitti

This chart illustrates the average monthly humidity levels in Iitti, 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 Iitti is approximately 98%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Iitti

In Iitti 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 Iitti.

Maximum UV Index Levels in Iitti for January

The chart shows the monthly maximum UV Index (UVI) for Iitti 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 Iitti typically reaches 1, which falls under the low exposure category.

Data source: Iitti 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 Iitti Compares to Other Months

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

This table compares monthly weather conditions in Iitti, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	49 mm (1.9 inches)	98%	low
February Weather	-5°C (24°F)	47 mm (1.9 inches)	96%	low
March Weather	-2°C (29°F)	44 mm (1.7 inches)	93%	moderate
April Weather	3°C (38°F)	46 mm (1.8 inches)	87%	moderate
May Weather	10°C (50°F)	54 mm (2.1 inches)	75%	moderate
June Weather	16°C (61°F)	60 mm (2.3 inches)	74%	high
July Weather	17°C (64°F)	78 mm (3.1 inches)	80%	high
August Weather	16°C (61°F)	86 mm (3.4 inches)	85%	moderate
September Weather	11°C (52°F)	62 mm (2.5 inches)	90%	moderate
October Weather	6°C (43°F)	77 mm (3.0 inches)	94%	low
November Weather	2°C (36°F)	53 mm (2.1 inches)	94%	low
December Weather	-2°C (28°F)	73 mm (2.9 inches)	96%	low