Last updated: August 23, 2025
In September, the average temperature in Jaemsaenkoski, Finland hovers around 10°C (51°F). Expect a minimum chill of -2°C (28°F) and a pleasant maximum of 22°C (72°F). The region experiences 73 mm (2.9 in) of precipitation over about 12 days, contributing to an average humidity of a high 90%. Be prepared for a mix of cool breezes and occasional showers!
In September in Jaemsaenkoski, the average temperature is 10°C (51°F). Maximum can reach 22°C (72°F) and minimum can be as low as -2°C (28°F). This makes it a versatile time for traveling, so be sure to pack layers to stay comfortable in varying conditions.
In Jaemsaenkoski in September, the precipitation amount is 73 mm (2.9 in) occurring over a span of 12 days.
In Jaemsaenkoski in September, humidity is 90%. With an average temperature of 10°C (51°F), this humidity feels like you are wrapped in a damp blanket, making traveling quite uncomfortable and sticky, as the air hangs heavy around you, often leading to fatigue and a longing for cooler, drier conditions.
In Jaemsaenkoski 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 Jaemsaenkoski, you can check the information here.
UV Risk Categories
Weather in Jaemsaenkoski varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Jaemsaenkoski, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 47 mm (1.9 inches) | 98% | low |
| February Weather | -6°C (22°F) | 44 mm (1.7 inches) | 96% | low |
| March Weather | -2°C (28°F) | 43 mm (1.7 inches) | 93% | moderate |
| April Weather | 3°C (37°F) | 44 mm (1.7 inches) | 87% | moderate |
| May Weather | 9°C (49°F) | 60 mm (2.4 inches) | 75% | moderate |
| June Weather | 16°C (61°F) | 62 mm (2.4 inches) | 74% | high |
| July Weather | 17°C (63°F) | 68 mm (2.7 inches) | 80% | high |
| August Weather | 15°C (60°F) | 91 mm (3.6 inches) | 85% | moderate |
| September Weather | 10°C (51°F) | 73 mm (2.9 inches) | 90% | moderate |
| October Weather | 5°C (42°F) | 80 mm (3.1 inches) | 94% | low |
| November Weather | 1°C (35°F) | 62 mm (2.4 inches) | 94% | low |
| December Weather | -3°C (27°F) | 69 mm (2.7 inches) | 96% | low |