April Weather in Forssa, Finland

Last updated: August 23, 2025

In Forssa, Finland, the average temperature in April hovers around 3°C (38°F), with extremes ranging from a chilly -14°C (6°F) to a balmy 21°C (69°F). Expect 41 mm (1.6 in) of precipitation spread over approximately 11 days, contributing to a cozy atmosphere marked by an average humidity level of 86%.

April Temperature in Forssa

In April in Forssa, the average temperature is 3°C (38°F), with maximums reaching up to 21°C (69°F) and minimums dropping as low as -14°C (6°F). This diverse range makes it essential for travelers to prepare for both mild and cold conditions.

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

The chart illustrates April temperature patterns in Forssa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Forssa, April typically has an average temperature of 3°C (38°F), with highs reaching up to 21°C (69°F) and lows dropping to around -14°C (6°F).

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

April Precipitation in Forssa

In Forssa in April, the precipitation amount is 41 mm (1.6 in) over the course of 11 days.

April Precipitation Trends in Forssa

The chart displays monthly precipitation patterns in Forssa, 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 Forssa, April typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 11 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 Forssa

In Forssa in April humidity is 86%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps through your layers, making traveling uncomfortable as breath clouds visibly in the crisp air.

April Average Humidity in Forssa

This chart illustrates the average monthly humidity levels in Forssa, 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 Forssa is approximately 86%, 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 Forssa

In Forssa in April, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Forssa for better planning.

Maximum UV Index Levels in Forssa for April

The chart shows the monthly maximum UV Index (UVI) for Forssa 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 Forssa typically reaches 4, which falls under the moderate exposure category.

Data source: Forssa 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 Forssa Compares to Other Months

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

This table compares monthly weather conditions in Forssa, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (26°F)	50 mm (2.0 inches)	97%	low
February Weather	-4°C (24°F)	45 mm (1.8 inches)	95%	low
March Weather	-1°C (30°F)	46 mm (1.8 inches)	93%	moderate
April Weather	3°C (38°F)	41 mm (1.6 inches)	86%	moderate
May Weather	10°C (50°F)	60 mm (2.4 inches)	75%	moderate
June Weather	16°C (61°F)	62 mm (2.4 inches)	75%	high
July Weather	17°C (64°F)	87 mm (3.4 inches)	80%	high
August Weather	16°C (61°F)	87 mm (3.4 inches)	83%	moderate
September Weather	11°C (52°F)	63 mm (2.5 inches)	90%	moderate
October Weather	6°C (43°F)	78 mm (3.1 inches)	93%	low
November Weather	2°C (36°F)	53 mm (2.1 inches)	94%	low
December Weather	-2°C (29°F)	67 mm (2.6 inches)	95%	low