September Weather in Kestilae, Finland

Last updated: August 23, 2025

In September, the average temperature in Kestilae, Finland is a cool 9°C (48°F). Be prepared for a range of temperatures, as the minimum can drop to -6°C (21°F), while the maximum may reach a pleasant 24°C (75°F). Expect some rain, with 72 mm (2.9 in) of precipitation over 14 days, accompanied by an average humidity of 90%.

September Temperature in Kestilae

In September in Kestilae, the average temperature is 9°C (48°F), with maximums reaching 24°C (75°F) and minimums dropping as low as -6°C (21°F). It's advisable to pack layers to comfortably enjoy your travels during this diverse weather.

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

The chart illustrates September temperature patterns in Kestilae, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kestilae, September typically has an average temperature of 9°C (48°F), with highs reaching up to 24°C (75°F) and lows dropping to around -6°C (21°F).

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

September Precipitation in Kestilae

In Kestilae in September, the precipitation amount is 72 mm (2.9 in) occurring over a span of 14 days.

September Precipitation Trends in Kestilae

The chart displays monthly precipitation patterns in Kestilae, 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 Kestilae, September typically receives around 72 mm (2.9 inches) of precipitation spread over approximately 14 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 Kestilae

In Kestilae 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 Kestilae

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

In Kestilae 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 Kestilae, you can check the information here.

Maximum UV Index Levels in Kestilae for September

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

Data source: Kestilae 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 Kestilae Compares to Other Months

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

This table compares monthly weather conditions in Kestilae, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	42 mm (1.6 inches)	100%	low
February Weather	-8°C (18°F)	40 mm (1.6 inches)	98%	low
March Weather	-4°C (26°F)	41 mm (1.6 inches)	95%	moderate
April Weather	2°C (35°F)	44 mm (1.7 inches)	87%	moderate
May Weather	8°C (47°F)	56 mm (2.2 inches)	81%	moderate
June Weather	15°C (59°F)	57 mm (2.3 inches)	77%	high
July Weather	17°C (62°F)	92 mm (3.6 inches)	79%	high
August Weather	14°C (58°F)	84 mm (3.3 inches)	84%	moderate
September Weather	9°C (48°F)	72 mm (2.9 inches)	90%	moderate
October Weather	4°C (39°F)	80 mm (3.1 inches)	95%	low
November Weather	-1°C (31°F)	64 mm (2.5 inches)	95%	low
December Weather	-5°C (24°F)	53 mm (2.1 inches)	99%	low