Last updated: August 23, 2025
In December, the average temperature in Kauhajoki, Finland hovers around -2°C (28°F), but be prepared for a range that can dip as low as -27°C (-16°F) and ascend to 5°C (42°F). With 53 mm (2.1 in) of precipitation spread over 13 days, you can expect a moist climate with an average humidity of 93%. Stay warm and dry!
In December in Kauhajoki, the average temperature is -2°C (28°F). The maximum can reach 5°C (42°F), and the minimum can be as low as -27°C (-16°F). Be sure to pack warm clothing and prepare for potentially extreme weather if you plan to travel during this time.
In Kauhajoki in December, the precipitation amount is 53 mm (2.1 in) over the course of 13 days.
In Kauhajoki in December, the humidity is 93%. With an average temperature of -2°C (28°F), this humidity feels like a biting chill that seeps into your bones, making traveling feel uncomfortable and heavy as you contend with the dampness in the air, creating a stark contrast to the freezing temperatures.
In Kauhajoki in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Kauhajoki.
UV Risk Categories
Weather in Kauhajoki varies notably across the year, with each month offering distinct climate conditions. This page compares December’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 |