September Weather in Tervo, Finland

Last updated: August 23, 2025

In September, the average temperature in Tervo, Finland hovers around 10°C (50°F). Expect temperatures to dip to a minimum of -1°C (30°F) and rise to a maximum of 23°C (74°F). Be prepared for 88 mm (3.5 in) of precipitation over about 13 days, and embrace the average humidity of 91% that adds a touch of dampness to the air.

September Temperature in Tervo

In September in Tervo, the average temperature is 10°C (50°F). Maximums can reach 23°C (74°F), and minimums can be as low as -1°C (30°F). Be prepared for a range of weather conditions if you're planning to travel during this month.

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

The chart illustrates September temperature patterns in Tervo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tervo, September typically has an average temperature of 10°C (50°F), with highs reaching up to 23°C (74°F) and lows dropping to around -1°C (30°F).

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

September Precipitation in Tervo

In Tervo in September, the precipitation amount is 88 mm (3.5 in) spread over 13 days.

September Precipitation Trends in Tervo

The chart displays monthly precipitation patterns in Tervo, 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 Tervo, September typically receives around 88 mm (3.5 inches) of precipitation spread over approximately 13 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Tervo

In Tervo in September, humidity is 91%. With an average temperature of 10°C (50°F), this humidity feels like an enveloping dampness that makes traveling a bit uncomfortable, as the moisture clings to your skin and dampens your clothes, soaking up any residual warmth from the cool air.

September Average Humidity in Tervo

This chart illustrates the average monthly humidity levels in Tervo, 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 Tervo is approximately 91%, 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 Tervo

In Tervo 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 Tervo, you can check the information here.

Maximum UV Index Levels in Tervo for September

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

Data source: Tervo 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 Tervo Compares to Other Months

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

This table compares monthly weather conditions in Tervo, 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 (21°F)	48 mm (1.9 inches)	99%	low
February Weather	-7°C (20°F)	42 mm (1.7 inches)	97%	low
March Weather	-3°C (27°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)	55 mm (2.2 inches)	78%	moderate
June Weather	15°C (60°F)	59 mm (2.3 inches)	74%	high
July Weather	17°C (63°F)	78 mm (3.1 inches)	80%	high
August Weather	15°C (60°F)	95 mm (3.7 inches)	85%	moderate
September Weather	10°C (50°F)	88 mm (3.5 inches)	91%	moderate
October Weather	5°C (41°F)	85 mm (3.3 inches)	95%	low
November Weather	1°C (33°F)	73 mm (2.9 inches)	94%	low
December Weather	-4°C (25°F)	66 mm (2.6 inches)	98%	low