September Weather in Valtimo, Finland

Last updated: August 23, 2025

In September, the average temperature in Valtimo, Finland hovers around 9°C (48°F). This month can bring quite a range, with lows dipping to -4°C (25°F) and highs peaking at 23°C (74°F). Get ready for some wet days, as you'll experience about 82 mm (3.2 in) of precipitation over 14 days, accompanied by a notable average humidity of 92%.

September Temperature in Valtimo

In September in Valtimo, the average temperature is 9°C (48°F). Maximums can reach 23°C (74°F), while minimums can dip as low as -4°C (25°F). This unpredictable weather makes Valtimo an ideal destination for travelers looking to experience both mild and chilly conditions.

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

The chart illustrates September temperature patterns in Valtimo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Valtimo, September typically has an average temperature of 9°C (48°F), with highs reaching up to 23°C (74°F) and lows dropping to around -4°C (25°F).

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

September Precipitation in Valtimo

In Valtimo in September, the precipitation amount is 82 mm (3.2 in) spread over 14 days.

September Precipitation Trends in Valtimo

The chart displays monthly precipitation patterns in Valtimo, 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 Valtimo, September typically receives around 82 mm (3.2 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 Valtimo

In Valtimo in September humidity is 92%. With an average temperature of 9°C (48°F), this humidity feels like a heavy blanket enveloping you, making outdoor exploration quite challenging due to the stickiness in the air and the constant dampness that clings to your skin.

September Average Humidity in Valtimo

This chart illustrates the average monthly humidity levels in Valtimo, 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 Valtimo is approximately 92%, 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 Valtimo

In Valtimo 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 Valtimo, you can check the information here.

Maximum UV Index Levels in Valtimo for September

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

Data source: Valtimo 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 Valtimo Compares to Other Months

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

This table compares monthly weather conditions in Valtimo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	48 mm (1.9 inches)	99%	low
February Weather	-8°C (17°F)	45 mm (1.8 inches)	98%	low
March Weather	-4°C (25°F)	48 mm (1.9 inches)	95%	low
April Weather	2°C (35°F)	46 mm (1.8 inches)	87%	moderate
May Weather	8°C (47°F)	63 mm (2.5 inches)	78%	moderate
June Weather	15°C (59°F)	71 mm (2.8 inches)	75%	high
July Weather	16°C (62°F)	77 mm (3.0 inches)	83%	high
August Weather	14°C (58°F)	89 mm (3.5 inches)	88%	moderate
September Weather	9°C (48°F)	82 mm (3.2 inches)	92%	moderate
October Weather	4°C (39°F)	88 mm (3.5 inches)	95%	low
November Weather	-1°C (30°F)	76 mm (3.0 inches)	94%	low
December Weather	-5°C (23°F)	66 mm (2.6 inches)	98%	low