March Weather in Posio, Finland

Last updated: August 23, 2025

In March, the average temperature in Posio, Finland hovers around -6°C (21°F). Expect chilly conditions, with temperatures potentially dropping to a brisk -25°C (-14°F) at night and peaking at a mild 7°C (45°F) during the day. With 44 mm (1.7 in) of precipitation spread over 12 days, the month tends to be damp, contributing to an average humidity level of 94%.

March Temperature in Posio

In March in Posio, the average temperature is -6°C (21°F). The maximum can reach 7°C (45°F) and the minimum can be as low as -25°C (-14°F). Make sure to dress warmly and prepare for significant temperature fluctuations while exploring this chilly destination.

March Weather in Posio: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Posio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Posio, March typically has an average temperature of -6°C (21°F), with highs reaching up to 7°C (45°F) and lows dropping to around -25°C (-14°F).

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

March Precipitation in Posio

In Posio in March, the total precipitation amounts to 44 mm (1.7 in) over the course of 12 days.

March Precipitation Trends in Posio

The chart displays monthly precipitation patterns in Posio, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Posio, March typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

March Humidity in Posio

In Posio in March humidity is 94%. With an average temperature of -6°C (21°F), this humidity feels like an icy blanket enveloping you, making every breath crisp and biting, challenging for travelers to navigate the cold and damp environment.

March Average Humidity in Posio

This chart illustrates the average monthly humidity levels in Posio, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Posio is approximately 94%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Posio

In Posio in March, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Posio, you can visit Hourly UV Index in Posio.

Maximum UV Index Levels in Posio for March

The chart shows the monthly maximum UV Index (UVI) for Posio in March, 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 March, the maximum UV index in Posio typically reaches 2, which falls under the low exposure category.

Data source: Posio March 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 March Weather in Posio Compares to Other Months

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

This table compares monthly weather conditions in Posio, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (14°F)	43 mm (1.7 inches)	101%	low
February Weather	-10°C (14°F)	40 mm (1.6 inches)	99%	low
March Weather	-6°C (21°F)	44 mm (1.7 inches)	94%	low
April Weather	0°C (32°F)	43 mm (1.7 inches)	88%	moderate
May Weather	5°C (41°F)	49 mm (1.9 inches)	83%	moderate
June Weather	12°C (55°F)	85 mm (3.4 inches)	79%	high
July Weather	15°C (60°F)	76 mm (3.0 inches)	83%	high
August Weather	12°C (55°F)	110 mm (4.3 inches)	87%	moderate
September Weather	7°C (46°F)	82 mm (3.2 inches)	91%	moderate
October Weather	2°C (35°F)	82 mm (3.2 inches)	96%	low
November Weather	-3°C (27°F)	71 mm (2.8 inches)	96%	low
December Weather	-7°C (20°F)	58 mm (2.3 inches)	100%	low