April Weather in Posio, Finland

Last updated: August 23, 2025

In April, the average temperature in Posio, Finland hovers around 0°C (32°F). Expect a chillier minimum of -15°C (6°F) and a milder maximum of 16°C (60°F). During this month, precipitation is not uncommon, with about 43 mm (1.7 in) spread over 9 days, contributing to an average humidity level of 88%. Stay prepared for the cold and occasional wet weather!

April Temperature in Posio

In April in Posio, the average temperature is 0°C (32°F). Maximums can reach 16°C (60°F), and minimums can be as low as -15°C (6°F). It's a time to prepare for a wide range of weather conditions, so pack accordingly for your travels!

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

The chart illustrates April 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, April typically has an average temperature of 0°C (32°F), with highs reaching up to 16°C (60°F) and lows dropping to around -15°C (6°F).

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

April Precipitation in Posio

In Posio in April, the precipitation amount reaches 43 mm (1.7 in) over the course of 9 days.

April Precipitation Trends in Posio

The chart displays monthly precipitation patterns in Posio, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Posio, April typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Posio

In Posio in April, humidity is 88%. With an average temperature of 0°C (32°F), this humidity feels like a chilly, damp blanket enveloping you, making travel uncomfortable as every breath seems to carry the weight of the cold moisture, turning each step into a struggle against the biting chill.

April Average Humidity in Posio

This chart illustrates the average monthly humidity levels in Posio, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Posio is approximately 88%, offering insight into how humid the weather typically is during this month.

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

April UV Index in Posio

In Posio in April, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Posio, you can check the information here.

Maximum UV Index Levels in Posio for April

The chart shows the monthly maximum UV Index (UVI) for Posio in April, 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 April, the maximum UV index in Posio typically reaches 3, which falls under the moderate exposure category.

Data source: Posio April 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 April 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 April’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 April’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