August Weather in Pertteli, Finland

Last updated: August 23, 2025

In August, the average temperature in Pertteli, Finland is a pleasant 16°C (61°F), ranging from a cool 5°C (41°F) to a warm 30°C (86°F). Expect about 85 mm (3.3 in) of precipitation over 13 days, with an average humidity level of 83%. Whether you're enjoying the mild weather or preparing for occasional showers, it's a great time to explore!

August Temperature in Pertteli

In August in Pertteli, the average temperature is 16°C (61°F). Maximum temperatures can reach 30°C (86°F), while minima can drop as low as 5°C (41°F). This variety in temperatures makes it a great time for travelers to dress in layers and enjoy a range of outdoor activities.

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

The chart illustrates August 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, August typically has an average temperature of 16°C (61°F), with highs reaching up to 30°C (86°F) and lows dropping to around 5°C (41°F).

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

August Precipitation in Pertteli

In Pertteli in August, the precipitation amount is 85 mm (3.3 in) spread over 13 days.

August Precipitation Trends in Pertteli

The chart displays monthly precipitation patterns in Pertteli, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Pertteli, August typically receives around 85 mm (3.3 inches) of precipitation spread over approximately 13 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Pertteli

In Pertteli in August, humidity is 83%. With an average temperature of 16°C (61°F), this humidity feels like a warm, muggy blanket wrapping around you, making travel a bit sticky and potentially uncomfortable as you navigate through the sights.

August Average Humidity in Pertteli

This chart illustrates the average monthly humidity levels in Pertteli, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Pertteli is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Pertteli

In Pertteli in August, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Pertteli.

Maximum UV Index Levels in Pertteli for August

The chart shows the monthly maximum UV Index (UVI) for Pertteli in August, 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 August, the maximum UV index in Pertteli typically reaches 5, which falls under the moderate exposure category.

Data source: Pertteli August 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 August 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 August’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 August’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