nomadseason

September Weather in Vaestanfjaerd, Finland

Last updated: August 23, 2025

In September, the average temperature in Vaestanfjaerd, Finland hovers around 14°C (57°F), with minimums dipping to 6°C (42°F) and maximums reaching up to 20°C (68°F). Expect a precipitation amount of 78 mm (3.1 in) over approximately 13 days, contributing to the region's average humidity of 87%. Stay prepared for a mix of cool breezes and occasional showers!

September Temperature in Vaestanfjaerd

In September in Vaestanfjaerd, the average temperature is 14°C (57°F). The maximum can reach 20°C (68°F), while the minimum can drop as low as 6°C (42°F). Therefore, it's advisable to pack layers to stay comfortable while exploring the area.

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

The chart illustrates September temperature patterns in Vaestanfjaerd, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vaestanfjaerd, September typically has an average temperature of 14°C (57°F), with highs reaching up to 20°C (68°F) and lows dropping to around 6°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec322932384759646356484235
Data source: Temperature data for Vaestanfjaerd generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Vaestanfjaerd

In Vaestanfjaerd in September, the precipitation amount is 78 mm (3.1 in) spread over 13 days.

September Precipitation Trends in Vaestanfjaerd

The chart displays monthly precipitation patterns in Vaestanfjaerd, 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 Vaestanfjaerd, September typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec58485130384073108781178587
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Vaestanfjaerd

In Vaestanfjaerd in September humidity is 87%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making every breath feel heavy and sticky, which can be quite challenging for travelers exploring the city.

September Average Humidity in Vaestanfjaerd

This chart illustrates the average monthly humidity levels in Vaestanfjaerd, 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 Vaestanfjaerd is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%91%90%87%76%80%80%83%87%90%91%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Vaestanfjaerd

In Vaestanfjaerd 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 Vaestanfjaerd for better planning.

Maximum UV Index Levels in Vaestanfjaerd for September

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

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

This table compares monthly weather conditions in Vaestanfjaerd, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)58 mm (2.3 inches)92%low
February Weather-2°C (29°F)48 mm (1.9 inches)91%low
March Weather0°C (32°F)51 mm (2.0 inches)90%moderate
April Weather3°C (38°F)30 mm (1.2 inches)87%moderate
May Weather8°C (47°F)38 mm (1.5 inches)76%moderate
June Weather15°C (59°F)40 mm (1.6 inches)80%high
July Weather18°C (64°F)73 mm (2.9 inches)80%high
August Weather17°C (64°F)108 mm (4.3 inches)83%moderate
September Weather14°C (57°F)78 mm (3.1 inches)87%moderate
October Weather9°C (48°F)117 mm (4.6 inches)90%low
November Weather5°C (42°F)85 mm (3.3 inches)91%low
December Weather2°C (35°F)86 mm (3.4 inches)90%low

Compare Vaestanfjaerd's Climate with Cities Worldwide