Last updated: August 23, 2025
In September, the average temperature in Salla, Finland hovers around 7°C (45°F). Expect a chilly minimum of -6°C (21°F) and a pleasant maximum of 22°C (72°F). Be prepared for 72 mm (2.8 in) of precipitation spread over 13 days, contributing to an average humidity of a muggy 92%.
In September in Salla, the average temperature is 7°C (45°F), with maximums reaching up to 22°C (72°F) and minimums dropping as low as -6°C (21°F). This wide range in temperatures means travelers should be prepared for both mild and chilly weather.
In Salla in September, the precipitation amount is 72 mm (2.8 in) over a period of 13 days.
In Salla in September, humidity is 92%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities feel heavier and less enjoyable for traveling.
In Salla 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 Salla, you can check the information here.
UV Risk Categories
Weather in Salla varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Salla, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -11°C (13°F) | 39 mm (1.5 inches) | 101% | low |
| February Weather | -11°C (12°F) | 36 mm (1.4 inches) | 99% | low |
| March Weather | -6°C (21°F) | 43 mm (1.7 inches) | 94% | low |
| April Weather | -1°C (31°F) | 41 mm (1.6 inches) | 89% | moderate |
| May Weather | 5°C (42°F) | 49 mm (1.9 inches) | 84% | moderate |
| June Weather | 12°C (54°F) | 85 mm (3.4 inches) | 81% | moderate |
| July Weather | 15°C (60°F) | 74 mm (2.9 inches) | 84% | high |
| August Weather | 12°C (54°F) | 104 mm (4.1 inches) | 88% | moderate |
| September Weather | 7°C (45°F) | 72 mm (2.8 inches) | 92% | moderate |
| October Weather | 1°C (34°F) | 80 mm (3.1 inches) | 97% | low |
| November Weather | -4°C (25°F) | 61 mm (2.4 inches) | 97% | low |
| December Weather | -7°C (19°F) | 54 mm (2.1 inches) | 101% | low |