January Weather in Vantaa, Finland

Last updated: August 23, 2025

In Vantaa, Finland, the average temperature in January hovers around -3°C (28°F). Expect chilly conditions, with temperatures dipping as low as -23°C (-9°F) and peaking at a milder 8°C (46°F). During this month, precipitation totals about 55 mm (2.2 in) over 11 days, paired with an elevated average humidity of 97%, making for quite a damp atmosphere. Stay warm and prepare for potential showers!

January Temperature in Vantaa

In January in Vantaa, the average temperature is -3°C (28°F), with maximums reaching 8°C (46°F) and minimums dropping as low as -23°C (-9°F). Be prepared for cold weather and dress warmly if you plan to travel there during this time.

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

The chart illustrates January temperature patterns in Vantaa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vantaa, January typically has an average temperature of -3°C (28°F), with highs reaching up to 8°C (46°F) and lows dropping to around -23°C (-9°F).

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

January Precipitation in Vantaa

In Vantaa, in January, the total precipitation amount is 55 mm (2.2 in) over the course of 11 days.

January Precipitation Trends in Vantaa

The chart displays monthly precipitation patterns in Vantaa, 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 Vantaa, January typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Vantaa

In Vantaa in January, humidity is 97%. With an average temperature of -3°C (28°F), this humidity feels like an icy blanket wrapping around you, making outdoor adventures challenging and travel uncomfortable, as each breath draws in a chill that seems to seep into your bones.

January Average Humidity in Vantaa

This chart illustrates the average monthly humidity levels in Vantaa, 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 Vantaa is approximately 97%, 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 Vantaa

In Vantaa 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 Vantaa.

Maximum UV Index Levels in Vantaa for January

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

Data source: Vantaa 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 Vantaa Compares to Other Months

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

This table compares monthly weather conditions in Vantaa, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (28°F)	55 mm (2.2 inches)	97%	low
February Weather	-3°C (26°F)	48 mm (1.9 inches)	95%	low
March Weather	-1°C (31°F)	52 mm (2.0 inches)	93%	moderate
April Weather	4°C (39°F)	48 mm (1.9 inches)	86%	moderate
May Weather	10°C (50°F)	56 mm (2.2 inches)	75%	moderate
June Weather	16°C (62°F)	61 mm (2.4 inches)	75%	high
July Weather	18°C (65°F)	91 mm (3.6 inches)	80%	high
August Weather	17°C (62°F)	83 mm (3.3 inches)	83%	moderate
September Weather	12°C (54°F)	76 mm (3.0 inches)	90%	moderate
October Weather	7°C (45°F)	89 mm (3.5 inches)	93%	low
November Weather	3°C (38°F)	62 mm (2.5 inches)	94%	low
December Weather	-1°C (31°F)	73 mm (2.9 inches)	95%	low