April Weather in Lohja, Finland

Last updated: August 23, 2025

In April, the average temperature in Lohja, Finland hovers around 3°C (39°F). While the minimum can plunge to -11°C (13°F), temperatures can also reach a pleasant maximum of 19°C (66°F). Expect about 37 mm (1.5 in) of precipitation spread over 9 days, and prepare for high humidity levels averaging around 86%.

April Temperature in Lohja

In April in Lohja, the average temperature is 3°C (39°F). The maximum can reach 19°C (66°F), while the minimum can be as low as -11°C (13°F). Be prepared for a wide range of temperatures when traveling, and pack accordingly to enjoy your visit to Lohja.

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

The chart illustrates April temperature patterns in Lohja, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lohja, April typically has an average temperature of 3°C (39°F), with highs reaching up to 19°C (66°F) and lows dropping to around -11°C (13°F).

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

April Precipitation in Lohja

In Lohja in April, the precipitation amount is 37 mm (1.5 in) over a span of 9 days.

April Precipitation Trends in Lohja

The chart displays monthly precipitation patterns in Lohja, 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 Lohja, April typically receives around 37 mm (1.5 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 Lohja

In Lohja in April, humidity is 86%. With an average temperature of 3°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and requiring extra layers for comfort while exploring.

April Average Humidity in Lohja

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

In Lohja 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 Lohja for better planning.

Maximum UV Index Levels in Lohja for April

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

Data source: Lohja 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 Lohja Compares to Other Months

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

This table compares monthly weather conditions in Lohja, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	57 mm (2.3 inches)	97%	low
February Weather	-3°C (26°F)	49 mm (1.9 inches)	95%	low
March Weather	-1°C (31°F)	53 mm (2.1 inches)	93%	moderate
April Weather	3°C (39°F)	37 mm (1.5 inches)	86%	moderate
May Weather	10°C (50°F)	52 mm (2.0 inches)	75%	moderate
June Weather	16°C (61°F)	51 mm (2.0 inches)	75%	high
July Weather	18°C (64°F)	84 mm (3.3 inches)	80%	high
August Weather	16°C (62°F)	82 mm (3.2 inches)	83%	moderate
September Weather	12°C (54°F)	63 mm (2.5 inches)	90%	moderate
October Weather	7°C (45°F)	89 mm (3.5 inches)	93%	low
November Weather	3°C (38°F)	62 mm (2.5 inches)	94%	low
December Weather	-1°C (31°F)	74 mm (2.9 inches)	95%	low