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September Weather in Vaala, Finland

Last updated: August 23, 2025

In Vaala, Finland, the average temperature in September is a cool 9°C (48°F). Be prepared for some variability, as temperatures can dip as low as -4°C (26°F) or rise to a pleasant 23°C (73°F). This month brings approximately 76 mm (3.0 in) of precipitation over about 12 days, contributing to a high average humidity of 90%. Stay cozy and enjoy the atmosphere!

September Temperature in Vaala

In September in Vaala, the average temperature is 9°C (48°F). Maximums can reach 23°C (73°F), while minimums can drop as low as -4°C (26°F). It's advisable to pack layers to prepare for varying weather conditions during your travels.

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

The chart illustrates September temperature patterns in Vaala, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vaala, September typically has an average temperature of 9°C (48°F), with highs reaching up to 23°C (73°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec181724344558625748383023
Data source: Temperature data for Vaala 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 Vaala

In Vaala in September, the total precipitation amount is 76 mm (3.0 in), occurring over the course of 12 days.

September Precipitation Trends in Vaala

The chart displays monthly precipitation patterns in Vaala, 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 Vaala, September typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec434043415264909976867157
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Vaala

In Vaala in September, humidity is 90%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration quite uncomfortable and requiring heavier layers to stay warm and dry.

September Average Humidity in Vaala

This chart illustrates the average monthly humidity levels in Vaala, 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 Vaala is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec100%98%95%87%81%77%79%84%90%95%95%99%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Vaala

In Vaala in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Vaala, you can check the information here.

Maximum UV Index Levels in Vaala for September

The chart shows the monthly maximum UV Index (UVI) for Vaala 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 Vaala typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113446653211
Data source: Vaala 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 Vaala Compares to Other Months

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

This table compares monthly weather conditions in Vaala, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (19°F)42 mm (1.7 inches)100%low
February Weather-9°C (17°F)40 mm (1.6 inches)98%low
March Weather-4°C (24°F)43 mm (1.7 inches)95%moderate
April Weather1°C (34°F)41 mm (1.6 inches)87%moderate
May Weather7°C (45°F)52 mm (2.0 inches)81%moderate
June Weather15°C (58°F)64 mm (2.5 inches)77%high
July Weather17°C (62°F)90 mm (3.6 inches)79%high
August Weather14°C (58°F)99 mm (3.9 inches)84%moderate
September Weather9°C (48°F)76 mm (3.0 inches)90%moderate
October Weather4°C (39°F)86 mm (3.4 inches)95%low
November Weather-1°C (30°F)71 mm (2.8 inches)95%low
December Weather-5°C (24°F)57 mm (2.3 inches)99%low

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