September Weather in Oitti, Finland

Last updated: August 23, 2025

In September, the average temperature in Oitti, Finland is a mild 11°C (52°F). Expect a temperature range that can dip to a chilly -3°C (28°F) and rise up to a pleasant 24°C (75°F). During this month, precipitation levels reach around 66 mm (2.6 in) over approximately 13 days, and the air remains quite humid, with an average humidity of 90%.

September Temperature in Oitti

In September in Oitti, the average temperature is 11°C (52°F). Maximum temperatures can reach 24°C (75°F), while minimums can drop as low as -3°C (28°F). It's advisable to pack layers to prepare for both warm afternoons and chilly evenings.

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

The chart illustrates September temperature patterns in Oitti, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oitti, September typically has an average temperature of 11°C (52°F), with highs reaching up to 24°C (75°F) and lows dropping to around -3°C (28°F).

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

September Precipitation in Oitti

In Oitti in September, the total precipitation amount is 66 mm (2.6 in) spread over the course of 13 days.

September Precipitation Trends in Oitti

The chart displays monthly precipitation patterns in Oitti, 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 Oitti, September typically receives around 66 mm (2.6 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 Oitti

In Oitti in September, humidity is 90%. With an average temperature of 11°C (52°F), this humidity feels like a heavy blanket that clings to your skin, making travel uncomfortable and muggy.

September Average Humidity in Oitti

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

In Oitti 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 Oitti for better planning.

Maximum UV Index Levels in Oitti for September

The chart shows the monthly maximum UV Index (UVI) for Oitti 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 Oitti typically reaches 4, which falls under the moderate exposure category.

Data source: Oitti 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 Oitti Compares to Other Months

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

This table compares monthly weather conditions in Oitti, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	51 mm (2.0 inches)	97%	low
February Weather	-4°C (24°F)	45 mm (1.8 inches)	95%	low
March Weather	-1°C (30°F)	47 mm (1.8 inches)	93%	moderate
April Weather	4°C (39°F)	47 mm (1.8 inches)	86%	moderate
May Weather	10°C (51°F)	56 mm (2.2 inches)	75%	moderate
June Weather	16°C (61°F)	64 mm (2.5 inches)	75%	high
July Weather	17°C (64°F)	79 mm (3.1 inches)	80%	high
August Weather	16°C (61°F)	77 mm (3.0 inches)	83%	moderate
September Weather	11°C (52°F)	66 mm (2.6 inches)	90%	moderate
October Weather	6°C (43°F)	79 mm (3.1 inches)	93%	low
November Weather	2°C (36°F)	53 mm (2.1 inches)	94%	low
December Weather	-2°C (29°F)	69 mm (2.7 inches)	95%	low