October Weather in Karhula, Finland

Last updated: August 23, 2025

In October, the average temperature in Karhula, Finland hovers around 7°C (45°F). Temperatures can dip to a brisk -3°C (26°F), while soaring up to 16°C (61°F) at their peak. Expect 86 mm (3.4 in) of precipitation spread across 15 days, all amidst a notably high average humidity of 94%. Stay prepared for a range of weather conditions!

October Temperature in Karhula

In October in Karhula, the average temperature is 7°C (45°F). Maximums can reach 16°C (61°F) and minimums can be as low as -3°C (26°F). This means travelers should be prepared for a mix of cool and mild weather, making it a great time for layering and enjoying outdoor activities.

October Weather in Karhula: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Karhula, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Karhula, October typically has an average temperature of 7°C (45°F), with highs reaching up to 16°C (61°F) and lows dropping to around -3°C (26°F).

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

October Precipitation in Karhula

In Karhula in October, the precipitation amount is 86 mm (3.4 in) that falls over a span of 15 days.

October Precipitation Trends in Karhula

The chart displays monthly precipitation patterns in Karhula, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Karhula, October typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 15 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Karhula

In Karhula in October, humidity is 94%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and travel cumbersome as you navigate through the thick, heavy air.

October Average Humidity in Karhula

This chart illustrates the average monthly humidity levels in Karhula, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Karhula is approximately 94%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Karhula

In Karhula in October, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Karhula, you can visit Hourly UV Index in Karhula.

Maximum UV Index Levels in Karhula for October

The chart shows the monthly maximum UV Index (UVI) for Karhula in October, 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 October, the maximum UV index in Karhula typically reaches 2, which falls under the low exposure category.

Data source: Karhula October 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 October Weather in Karhula Compares to Other Months

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

This table compares monthly weather conditions in Karhula, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	55 mm (2.2 inches)	98%	low
February Weather	-4°C (25°F)	55 mm (2.2 inches)	96%	low
March Weather	-1°C (30°F)	49 mm (1.9 inches)	93%	moderate
April Weather	4°C (39°F)	43 mm (1.7 inches)	87%	moderate
May Weather	10°C (50°F)	48 mm (1.9 inches)	75%	moderate
June Weather	16°C (61°F)	48 mm (1.9 inches)	74%	high
July Weather	18°C (64°F)	75 mm (3.0 inches)	80%	high
August Weather	17°C (62°F)	88 mm (3.5 inches)	85%	moderate
September Weather	12°C (54°F)	66 mm (2.6 inches)	90%	moderate
October Weather	7°C (45°F)	86 mm (3.4 inches)	94%	low
November Weather	3°C (38°F)	66 mm (2.6 inches)	94%	low
December Weather	-1°C (30°F)	81 mm (3.2 inches)	96%	low