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August Weather in Harjavalta, Finland

Last updated: August 23, 2025

In Harjavalta, Finland, the average temperature in August hovers around 16°C (61°F). Expect a minimum of 4°C (39°F) and a maximum that can reach up to 30°C (87°F). During this month, prepare for 96 mm (3.8 in) of precipitation over approximately 14 days, contributing to an average humidity of 79%. Stay hydrated and enjoy the varying weather conditions!

August Temperature in Harjavalta

In August in Harjavalta, the average temperature is 16°C (61°F). Maximums can reach 30°C (87°F) and minimums can be as low as 4°C (39°F). Travelers should pack layers to comfortably enjoy both warm days and cooler evenings.

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

The chart illustrates August temperature patterns in Harjavalta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harjavalta, August typically has an average temperature of 16°C (61°F), with highs reaching up to 30°C (87°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec272531395061646152433730
Data source: Temperature data for Harjavalta generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Harjavalta

In Harjavalta in August, the total precipitation amount is 96 mm (3.8 in) over the course of 14 days.

August Precipitation Trends in Harjavalta

The chart displays monthly precipitation patterns in Harjavalta, 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 Harjavalta, August typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec434043384857909665755564
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Harjavalta

In Harjavalta in August humidity is 79%. With an average temperature of 16°C (61°F), this humidity feels like a warm, moist embrace, making travel a bit more challenging as the air tends to weigh heavily, but it also offers a refreshing atmosphere perfect for exploring local sights and enjoying nature.

August Average Humidity in Harjavalta

This chart illustrates the average monthly humidity levels in Harjavalta, 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 Harjavalta is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%89%85%77%78%78%79%86%90%91%89%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Harjavalta

In Harjavalta 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 Harjavalta.

Maximum UV Index Levels in Harjavalta for August

The chart shows the monthly maximum UV Index (UVI) for Harjavalta 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 Harjavalta typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456653211
Data source: Harjavalta 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 Harjavalta Compares to Other Months

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

This table compares monthly weather conditions in Harjavalta, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)43 mm (1.7 inches)92%low
February Weather-4°C (25°F)40 mm (1.6 inches)90%low
March Weather-1°C (31°F)43 mm (1.7 inches)89%moderate
April Weather4°C (40°F)38 mm (1.5 inches)85%moderate
May Weather10°C (50°F)47 mm (1.9 inches)77%moderate
June Weather16°C (61°F)57 mm (2.3 inches)78%high
July Weather18°C (64°F)90 mm (3.5 inches)78%high
August Weather16°C (61°F)96 mm (3.8 inches)79%moderate
September Weather11°C (53°F)65 mm (2.6 inches)86%moderate
October Weather6°C (44°F)75 mm (2.9 inches)90%low
November Weather3°C (37°F)55 mm (2.2 inches)91%low
December Weather-1°C (30°F)64 mm (2.5 inches)89%low

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