April Weather in Heinaevesi, Finland

Last updated: August 23, 2025

In April, the average temperature in Heinaevesi, Finland hovers around 2°C (35°F), with extreme fluctuations ranging from a chilly -13°C (9°F) to a mild 19°C (66°F). Expect approximately 43 mm (1.7 in) of precipitation spread over 9 days, contributing to a notably high average humidity of 87%. Prepare for a brisk and damp month!

April Temperature in Heinaevesi

In April in Heinaevesi, the average temperature is 2°C (35°F). The maximum can reach 19°C (66°F), and the minimum can be as low as -13°C (9°F). Be prepared for a wide temperature range and pack accordingly for your trip!

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

The chart illustrates April temperature patterns in Heinaevesi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heinaevesi, April typically has an average temperature of 2°C (35°F), with highs reaching up to 19°C (66°F) and lows dropping to around -13°C (9°F).

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

April Precipitation in Heinaevesi

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

April Precipitation Trends in Heinaevesi

The chart displays monthly precipitation patterns in Heinaevesi, 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 Heinaevesi, 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 Heinaevesi

In Heinaevesi in April, humidity is 87%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making traveling feel uncomfortable and heavy, as each breath carries a hint of the cold, moist air that lingers around you.

April Average Humidity in Heinaevesi

This chart illustrates the average monthly humidity levels in Heinaevesi, 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 Heinaevesi is approximately 87%, 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 Heinaevesi

In Heinaevesi 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 Heinaevesi for better planning.

Maximum UV Index Levels in Heinaevesi for April

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

Data source: Heinaevesi 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 Heinaevesi Compares to Other Months

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

This table compares monthly weather conditions in Heinaevesi, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	49 mm (1.9 inches)	99%	low
February Weather	-7°C (20°F)	44 mm (1.7 inches)	98%	low
March Weather	-3°C (27°F)	47 mm (1.8 inches)	95%	moderate
April Weather	2°C (35°F)	43 mm (1.7 inches)	87%	moderate
May Weather	9°C (48°F)	61 mm (2.4 inches)	78%	moderate
June Weather	16°C (61°F)	67 mm (2.6 inches)	75%	high
July Weather	17°C (63°F)	81 mm (3.2 inches)	83%	high
August Weather	15°C (60°F)	87 mm (3.4 inches)	88%	moderate
September Weather	10°C (50°F)	85 mm (3.4 inches)	92%	moderate
October Weather	5°C (41°F)	79 mm (3.1 inches)	95%	low
November Weather	1°C (33°F)	64 mm (2.5 inches)	94%	low
December Weather	-4°C (25°F)	70 mm (2.7 inches)	98%	low