September Weather in Kesaelahti, Finland

Last updated: August 23, 2025

In September, the average temperature in Kesaelahti, Finland is a cool 10°C (51°F), with minimums dipping to 0°C (33°F) and highs reaching up to 22°C (73°F). Expect 85 mm (3.3 in) of precipitation spread across approximately 13 days, making the atmosphere quite humid with an average humidity of 90%.

September Temperature in Kesaelahti

In September in Kesaelahti, the average temperature is 10°C (51°F). Maximums can reach 22°C (73°F), and minimums can be as low as 0°C (33°F). Be prepared for a mix of mild and cool weather, making it an ideal time for exploring and enjoying outdoor activities.

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

The chart illustrates September temperature patterns in Kesaelahti, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kesaelahti, September typically has an average temperature of 10°C (51°F), with highs reaching up to 22°C (73°F) and lows dropping to around 0°C (33°F).

Data source: Temperature data for Kesaelahti generated using information from the Copernicus Climate Change Service.

September Precipitation in Kesaelahti

In Kesaelahti in September, the precipitation amount is 85 mm (3.3 in) spread over 13 days.

September Precipitation Trends in Kesaelahti

The chart displays monthly precipitation patterns in Kesaelahti, 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 Kesaelahti, September typically receives around 85 mm (3.3 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Kesaelahti

In Kesaelahti in September, humidity is 90%. With an average temperature of 10°C (51°F), this humidity feels like you are wrapped in a damp blanket, making traveling quite uncomfortable and sticky, as the air hangs heavy around you, often leading to fatigue and a longing for cooler, drier conditions.

September Average Humidity in Kesaelahti

This chart illustrates the average monthly humidity levels in Kesaelahti, 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 Kesaelahti is approximately 90%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kesaelahti

In Kesaelahti 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 Kesaelahti, you can check the information here.

Maximum UV Index Levels in Kesaelahti for September

The chart shows the monthly maximum UV Index (UVI) for Kesaelahti 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 Kesaelahti typically reaches 3, which falls under the moderate exposure category.

Data source: Kesaelahti 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 Kesaelahti Compares to Other Months

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

This table compares monthly weather conditions in Kesaelahti, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	47 mm (1.9 inches)	98%	low
February Weather	-7°C (21°F)	49 mm (1.9 inches)	96%	low
March Weather	-3°C (27°F)	47 mm (1.8 inches)	93%	moderate
April Weather	2°C (36°F)	45 mm (1.8 inches)	88%	moderate
May Weather	9°C (49°F)	56 mm (2.2 inches)	77%	moderate
June Weather	16°C (61°F)	62 mm (2.4 inches)	75%	high
July Weather	17°C (63°F)	81 mm (3.2 inches)	82%	high
August Weather	16°C (60°F)	101 mm (4.0 inches)	84%	moderate
September Weather	10°C (51°F)	85 mm (3.3 inches)	90%	moderate
October Weather	5°C (42°F)	77 mm (3.0 inches)	93%	low
November Weather	1°C (34°F)	55 mm (2.2 inches)	93%	low
December Weather	-4°C (26°F)	72 mm (2.8 inches)	95%	low