September Weather in Varkaus, Finland

Last updated: August 23, 2025

In September, the average temperature in Varkaus, Finland is a mild 10°C (51°F), with lows dipping to -1°C (31°F) and highs soaring to 22°C (73°F). Expect 77 mm (3.0 in) of rain over approximately 14 days, contributing to a high average humidity of 92%. Be prepared for a mix of weather as you explore this captivating destination!

September Temperature in Varkaus

In September in Varkaus, the average temperature is 10°C (51°F). The maximum can reach 22°C (73°F), and the minimum can be as low as -1°C (31°F). Travelers should be prepared for a range of temperatures, making it essential to pack both light and warm clothing.

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

The chart illustrates September temperature patterns in Varkaus, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Varkaus, 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 -1°C (31°F).

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

September Precipitation in Varkaus

In Varkaus in September, the precipitation amount is 77 mm (3.0 in) over the course of 14 days.

September Precipitation Trends in Varkaus

The chart displays monthly precipitation patterns in Varkaus, 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 Varkaus, September typically receives around 77 mm (3.0 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 Varkaus

In Varkaus in September humidity is 92%. With average temperature 10°C (51°F), this humidity feels like walking through a thick blanket of moisture, making travel uncomfortable and sticky, as each step is met with an oppressive dampness that clings to your skin and leaves you yearning for a cool breeze.

September Average Humidity in Varkaus

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

In Varkaus 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 Varkaus, you can check the information here.

Maximum UV Index Levels in Varkaus for September

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

Data source: Varkaus 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 Varkaus Compares to Other Months

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

This table compares monthly weather conditions in Varkaus, 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)	48 mm (1.9 inches)	99%	low
February Weather	-6°C (21°F)	42 mm (1.7 inches)	98%	low
March Weather	-3°C (27°F)	44 mm (1.7 inches)	95%	moderate
April Weather	2°C (36°F)	44 mm (1.7 inches)	87%	moderate
May Weather	9°C (49°F)	58 mm (2.3 inches)	78%	moderate
June Weather	16°C (61°F)	63 mm (2.5 inches)	75%	high
July Weather	17°C (63°F)	82 mm (3.2 inches)	83%	high
August Weather	15°C (60°F)	84 mm (3.3 inches)	88%	moderate
September Weather	10°C (51°F)	77 mm (3.0 inches)	92%	moderate
October Weather	5°C (42°F)	73 mm (2.9 inches)	95%	low
November Weather	1°C (34°F)	61 mm (2.4 inches)	94%	low
December Weather	-4°C (26°F)	67 mm (2.6 inches)	98%	low