April Weather in Pertteli, Finland

Last updated: August 23, 2025

In April, the average temperature in Pertteli, Finland hovers around 4°C (39°F), with minimums dipping as low as -13°C (9°F) and a maximum of 21°C (69°F). Expect about 38 mm (1.5 in) of precipitation spread over 10 days, contributing to an average humidity level of 86%.

April Temperature in Pertteli

In April in Pertteli, the average temperature is 4°C (39°F). Maximum temperatures can reach 21°C (69°F), while minimums can drop as low as -13°C (9°F). Travelers should be prepared for a wide range of weather conditions during this time.

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

The chart illustrates April temperature patterns in Pertteli, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pertteli, April typically has an average temperature of 4°C (39°F), with highs reaching up to 21°C (69°F) and lows dropping to around -13°C (9°F).

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

April Precipitation in Pertteli

In Pertteli in April, the precipitation amount is 38 mm (1.5 in) over the course of 10 days.

April Precipitation Trends in Pertteli

The chart displays monthly precipitation patterns in Pertteli, 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 Pertteli, April typically receives around 38 mm (1.5 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 Pertteli

In Pertteli in April humidity is 86%. With an average temperature of 4°C (39°F), this humidity feels like a chilly mist enveloping you, making it essential to bundle up while exploring, as each breath comes with a damp chill that can be quite refreshing yet starkly invigorating for travelers.

April Average Humidity in Pertteli

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

In Pertteli 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 Pertteli for better planning.

Maximum UV Index Levels in Pertteli for April

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

Data source: Pertteli 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 Pertteli Compares to Other Months

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

This table compares monthly weather conditions in Pertteli, 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 (27°F)	51 mm (2.0 inches)	97%	low
February Weather	-4°C (25°F)	44 mm (1.7 inches)	95%	low
March Weather	-1°C (31°F)	48 mm (1.9 inches)	93%	moderate
April Weather	4°C (39°F)	38 mm (1.5 inches)	86%	moderate
May Weather	10°C (50°F)	56 mm (2.2 inches)	75%	moderate
June Weather	16°C (62°F)	52 mm (2.1 inches)	75%	high
July Weather	18°C (64°F)	79 mm (3.1 inches)	80%	high
August Weather	16°C (61°F)	85 mm (3.3 inches)	83%	moderate
September Weather	11°C (53°F)	59 mm (2.3 inches)	90%	moderate
October Weather	6°C (44°F)	78 mm (3.1 inches)	93%	low
November Weather	3°C (37°F)	53 mm (2.1 inches)	94%	low
December Weather	-1°C (30°F)	68 mm (2.7 inches)	95%	low