nomadseason

September Weather in Kullaa, Finland

Last updated: August 23, 2025

In September, the average temperature in Kullaa, Finland hovers around 11°C (52°F). Expect a minimum temperature of -1°C (30°F), while the maximum can reach up to 24°C (76°F). During this period, precipitation totals approximately 71 mm (2.8 in) over about 12 days, accompanied by a high average humidity of 86%.

September Temperature in Kullaa

In September in Kullaa, the average temperature is 11°C (52°F). Maximums can reach 24°C (76°F), while minimums can drop as low as -1°C (30°F). It's a perfect time for travelers to enjoy mild weather while being prepared for a range of temperatures.

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

The chart illustrates September temperature patterns in Kullaa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kullaa, September typically has an average temperature of 11°C (52°F), with highs reaching up to 24°C (76°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec272430395061646152433630
Data source: Temperature data for Kullaa 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 Kullaa

In Kullaa in September, the precipitation amount is 71 mm (2.8 in) during a total of 12 days.

September Precipitation Trends in Kullaa

The chart displays monthly precipitation patterns in Kullaa, 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 Kullaa, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec4341444247608610271795964
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Kullaa

In Kullaa in September humidity is 86%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek sheltered spots or indoor attractions to escape the uncomfortable dampness.

September Average Humidity in Kullaa

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

In Kullaa 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 Kullaa, you can check the information here.

Maximum UV Index Levels in Kullaa for September

The chart shows the monthly maximum UV Index (UVI) for Kullaa 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 Kullaa typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456653211
Data source: Kullaa 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 Kullaa Compares to Other Months

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

This table compares monthly weather conditions in Kullaa, showing how September’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)41 mm (1.6 inches)90%low
March Weather-1°C (31°F)44 mm (1.7 inches)89%moderate
April Weather4°C (39°F)42 mm (1.7 inches)85%moderate
May Weather10°C (50°F)47 mm (1.9 inches)77%moderate
June Weather16°C (61°F)60 mm (2.3 inches)78%high
July Weather18°C (64°F)86 mm (3.4 inches)78%high
August Weather16°C (61°F)102 mm (4.0 inches)79%moderate
September Weather11°C (52°F)71 mm (2.8 inches)86%moderate
October Weather6°C (43°F)79 mm (3.1 inches)90%low
November Weather2°C (37°F)59 mm (2.3 inches)91%low
December Weather-1°C (30°F)64 mm (2.5 inches)89%low

Compare Kullaa's Climate with Cities Worldwide