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September Weather in Vehmaa, Finland

Last updated: August 23, 2025

In September, the average temperature in Vehmaa, Finland hovers around 12°C (54°F). Expect fluctuations, with a minimum dipping as low as -1°C (30°F) and a maximum reaching 24°C (75°F). During this time, the region experiences approximately 64 mm (2.5 in) of precipitation over 11 days, contributing to an average humidity of 86%.

September Temperature in Vehmaa

In September in Vehmaa, the average temperature is 12°C (54°F). The maximum can reach 24°C (75°F), and the minimum can be as low as -1°C (30°F). This variation in temperature makes Vehmaa an ideal destination for travelers who enjoy both mild days and cooler evenings.

September Weather in Vehmaa: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Vehmaa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vehmaa, September typically has an average temperature of 12°C (54°F), with highs reaching up to 24°C (75°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec292732405061646254453932
Data source: Temperature data for Vehmaa 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.

September Precipitation in Vehmaa

In Vehmaa in September, the total precipitation amount is 64 mm (2.5 in) spread over 11 days.

September Precipitation Trends in Vehmaa

The chart displays monthly precipitation patterns in Vehmaa, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Vehmaa, September typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec444042314144767764795273
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Vehmaa

In Vehmaa in September, humidity is 86%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable and travel challenging due to the heavy, muggy atmosphere.

September Average Humidity in Vehmaa

This chart illustrates the average monthly humidity levels in Vehmaa, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Vehmaa is approximately 86%, 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 September generated using information from the Copernicus Climate Change Service.

September UV Index in Vehmaa

In Vehmaa in September, 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 Vehmaa for better planning.

Maximum UV Index Levels in Vehmaa for September

The chart shows the monthly maximum UV Index (UVI) for Vehmaa in September, 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 September, the maximum UV index in Vehmaa typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Vehmaa September 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 September Weather in Vehmaa Compares to Other Months

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

This table compares monthly weather conditions in Vehmaa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)44 mm (1.7 inches)92%low
February Weather-3°C (27°F)40 mm (1.6 inches)90%low
March Weather0°C (32°F)41 mm (1.6 inches)89%moderate
April Weather4°C (40°F)31 mm (1.2 inches)85%moderate
May Weather10°C (50°F)41 mm (1.6 inches)77%moderate
June Weather16°C (61°F)44 mm (1.7 inches)78%high
July Weather18°C (64°F)76 mm (3.0 inches)78%high
August Weather16°C (62°F)77 mm (3.0 inches)79%moderate
September Weather12°C (54°F)64 mm (2.5 inches)86%moderate
October Weather7°C (45°F)79 mm (3.1 inches)90%low
November Weather4°C (39°F)52 mm (2.0 inches)91%low
December Weather0°C (32°F)73 mm (2.9 inches)89%low

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