Last updated: August 23, 2025
In September, the average temperature in Kauhajoki, Finland hovers around 10°C (50°F). Expect cool days, with minimums dipping to -3°C (27°F) and maximums reaching 24°C (75°F). Rain is likely, with 75 mm (3.0 in) falling over approximately 14 days, contributing to an average humidity of 88%. Prepare for a damp and chilly experience!
In September in Kauhajoki, the average temperature is 10°C (50°F), with maximums reaching 24°C (75°F) and minimums plummeting to as low as -3°C (27°F). Be prepared for a mix of mild days and chilly nights when traveling during this time.
In Kauhajoki in September, the precipitation amount is 75 mm (3.0 in) spread over 14 days, indicating a relatively wet period for the region.
In Kauhajoki in September, humidity is 88%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and encouraging travelers to seek cozy indoor activities instead.
In Kauhajoki 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 Kauhajoki, you can check the information here.
UV Risk Categories
Weather in Kauhajoki varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Kauhajoki, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 38 mm (1.5 inches) | 95% | low |
| February Weather | -5°C (23°F) | 42 mm (1.6 inches) | 93% | low |
| March Weather | -2°C (29°F) | 44 mm (1.7 inches) | 91% | moderate |
| April Weather | 3°C (38°F) | 43 mm (1.7 inches) | 85% | moderate |
| May Weather | 9°C (48°F) | 53 mm (2.1 inches) | 77% | moderate |
| June Weather | 15°C (60°F) | 63 mm (2.5 inches) | 74% | high |
| July Weather | 17°C (62°F) | 68 mm (2.7 inches) | 80% | high |
| August Weather | 15°C (59°F) | 100 mm (3.9 inches) | 82% | moderate |
| September Weather | 10°C (50°F) | 75 mm (3.0 inches) | 88% | moderate |
| October Weather | 5°C (41°F) | 71 mm (2.8 inches) | 92% | low |
| November Weather | 1°C (34°F) | 60 mm (2.4 inches) | 92% | low |
| December Weather | -2°C (28°F) | 53 mm (2.1 inches) | 93% | low |