April Weather in Sumiainen, Finland

Last updated: August 23, 2025

In April, the average temperature in Sumiainen, Finland hovers around 2°C (35°F), offering a chilly atmosphere. Expect minimum lows of -13°C (9°F) and peaks up to 18°C (66°F), showcasing a notable temperature range. Precipitation amounts to 43 mm (1.7 in) over approximately 10 days, contributing to an average humidity of 87% which makes the air feel even cooler. Stay prepared for a mix of frosty days and occasional rain!

April Temperature in Sumiainen

In April in Sumiainen, the average temperature is 2°C (35°F). Maximums can reach 18°C (66°F) while minimums can drop as low as -13°C (9°F). Be prepared for a wide range of temperatures if you plan to travel during this month.

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

The chart illustrates April temperature patterns in Sumiainen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumiainen, April typically has an average temperature of 2°C (35°F), with highs reaching up to 18°C (66°F) and lows dropping to around -13°C (9°F).

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

April Precipitation in Sumiainen

In Sumiainen in April, the precipitation amount is 43 mm (1.7 in) over a span of 10 days.

April Precipitation Trends in Sumiainen

The chart displays monthly precipitation patterns in Sumiainen, 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 Sumiainen, April typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 10 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Sumiainen

In Sumiainen 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 Sumiainen

This chart illustrates the average monthly humidity levels in Sumiainen, 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 Sumiainen 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 Sumiainen

In Sumiainen 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 Sumiainen for better planning.

Maximum UV Index Levels in Sumiainen for April

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

Data source: Sumiainen 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 Sumiainen Compares to Other Months

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

This table compares monthly weather conditions in Sumiainen, 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 (22°F)	45 mm (1.8 inches)	99%	low
February Weather	-6°C (21°F)	41 mm (1.6 inches)	97%	low
March Weather	-3°C (27°F)	38 mm (1.5 inches)	95%	moderate
April Weather	2°C (35°F)	43 mm (1.7 inches)	87%	moderate
May Weather	8°C (48°F)	60 mm (2.4 inches)	78%	moderate
June Weather	15°C (60°F)	57 mm (2.3 inches)	74%	high
July Weather	17°C (63°F)	71 mm (2.8 inches)	80%	high
August Weather	15°C (60°F)	89 mm (3.5 inches)	85%	moderate
September Weather	10°C (50°F)	80 mm (3.2 inches)	91%	moderate
October Weather	5°C (41°F)	80 mm (3.1 inches)	95%	low
November Weather	1°C (34°F)	62 mm (2.4 inches)	94%	low
December Weather	-3°C (26°F)	62 mm (2.4 inches)	98%	low