nomadseason

September Weather in Kokkola, Finland

Last updated: August 23, 2025

In September, the average temperature in Kokkola, Finland hovers around 10°C (51°F), with a minimum of -2°C (29°F) and a maximum reaching up to 23°C (74°F). Expect a precipitation amount of 76 mm (3.0 in) spread across 12 days, contributing to an average humidity of 89%—ideal for those who thrive in a moist climate!

September Temperature in Kokkola

In September in Kokkola, the average temperature is 10°C (51°F). Maximums can reach 23°C (74°F), while minimums can drop as low as -2°C (29°F). Be sure to pack layers to stay comfortable during your travels!

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

The chart illustrates September temperature patterns in Kokkola, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kokkola, September typically has an average temperature of 10°C (51°F), with highs reaching up to 23°C (74°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec242128374758635950413427
Data source: Temperature data for Kokkola 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 Kokkola

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

September Precipitation Trends in Kokkola

The chart displays monthly precipitation patterns in Kokkola, 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 Kokkola, September typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec374040395354729576835648
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Kokkola

In Kokkola in September humidity is 89%. With an average temperature of 10°C (51°F), this humidity feels like traveling through a thick fog, where the damp air clings to your skin, making the coolness feel even chillier and adding an element of discomfort to your adventures.

September Average Humidity in Kokkola

This chart illustrates the average monthly humidity levels in Kokkola, 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 Kokkola is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%95%92%85%77%74%79%82%89%93%93%95%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kokkola

In Kokkola 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 Kokkola, you can check the information here.

Maximum UV Index Levels in Kokkola for September

The chart shows the monthly maximum UV Index (UVI) for Kokkola 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 Kokkola typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112456653211
Data source: Kokkola 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 Kokkola Compares to Other Months

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

This table compares monthly weather conditions in Kokkola, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)37 mm (1.4 inches)97%low
February Weather-6°C (22°F)40 mm (1.6 inches)95%low
March Weather-2°C (28°F)40 mm (1.6 inches)92%low
April Weather3°C (37°F)39 mm (1.5 inches)85%moderate
May Weather8°C (47°F)53 mm (2.1 inches)77%moderate
June Weather15°C (59°F)54 mm (2.1 inches)74%high
July Weather17°C (63°F)72 mm (2.8 inches)79%high
August Weather15°C (59°F)95 mm (3.7 inches)82%moderate
September Weather10°C (51°F)76 mm (3.0 inches)89%moderate
October Weather5°C (41°F)83 mm (3.3 inches)93%low
November Weather1°C (34°F)56 mm (2.2 inches)93%low
December Weather-3°C (27°F)48 mm (1.9 inches)95%low

Compare Kokkola's Climate with Cities Worldwide