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August Weather in Isojoki, Finland

Last updated: August 23, 2025

In August, the average temperature in Isojoki, Finland is a pleasant 15°C (60°F), making it a delightful time to explore. However, be prepared for a range of temperatures, as it can dip to a chilly 2°C (36°F) or soar up to a warm 30°C (86°F). With 113 mm (4.5 in) of precipitation spread over 15 days, it's wise to carry an umbrella! The air feels quite humid, with an average humidity level of 79%, adding to the overall tropical atmosphere. 🌦️

August Temperature in Isojoki

In August in Isojoki, the average temperature is 15°C (60°F), with maximums that can reach 30°C (86°F) and minimums that can drop as low as 2°C (36°F). This climate makes it an ideal time to explore outdoor activities and enjoy the local scenery.

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

The chart illustrates August temperature patterns in Isojoki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Isojoki, August typically has an average temperature of 15°C (60°F), with highs reaching up to 30°C (86°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec252329384960635951423528
Data source: Temperature data for Isojoki 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 Isojoki

In Isojoki in August, the precipitation amount is 113 mm (4.5 in) over the course of 15 days.

August Precipitation Trends in Isojoki

The chart displays monthly precipitation patterns in Isojoki, 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 Isojoki, August typically receives around 113 mm (4.5 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec4346484647698711377806867
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Isojoki

In Isojoki in August, humidity is 79%. With an average temperature of 15°C (60°F), this humidity feels like a warm, enveloping blanket that can make traveling feel muggy and a bit stifling, requiring frequent breaks to stay refreshed and hydrated.

August Average Humidity in Isojoki

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

In Isojoki 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 Isojoki.

Maximum UV Index Levels in Isojoki for August

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

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

This table compares monthly weather conditions in Isojoki, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)43 mm (1.7 inches)92%low
February Weather-5°C (24°F)46 mm (1.8 inches)90%low
March Weather-2°C (29°F)48 mm (1.9 inches)89%moderate
April Weather3°C (38°F)46 mm (1.8 inches)85%moderate
May Weather9°C (49°F)47 mm (1.8 inches)77%moderate
June Weather16°C (61°F)69 mm (2.7 inches)78%high
July Weather17°C (63°F)87 mm (3.4 inches)78%high
August Weather15°C (60°F)113 mm (4.5 inches)79%moderate
September Weather11°C (51°F)77 mm (3.0 inches)86%moderate
October Weather6°C (42°F)80 mm (3.1 inches)90%low
November Weather2°C (35°F)68 mm (2.7 inches)91%low
December Weather-2°C (29°F)67 mm (2.6 inches)89%low

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