Last updated: August 23, 2025
In December, the average temperature in Kaersaemaeki, Finland hovers around -4°C (24°F). However, be prepared for a significant chill, as temperatures can dip to a brisk -21°C (-5°F) and may rise to a maximum of 4°C (40°F). Expect 52 mm (2.1 in) of precipitation over approximately 14 days, contributing to an average humidity level of a staggering 98%.
In December in Kaersaemaeki, the average temperature is -4°C (24°F), with maximums reaching 4°C (40°F) and minimums dropping as low as -21°C (-5°F). Travelers should be prepared for cold conditions and dress warmly to fully enjoy their stay.
In Kaersaemaeki in December, the precipitation amount is 52 mm (2.1 in) spread over 14 days.
In Kaersaemaeki in December humidity is 98%. With an average temperature of -4°C (24°F), this humidity feels like an icy mist that clings to your skin, making it uncomfortable for traveling and causing everything to feel damp and frosty, as if you are enveloped in a chill that cuts through even the thickest layers of clothing.
In Kaersaemaeki 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 Kaersaemaeki.
UV Risk Categories
Weather in Kaersaemaeki varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Kaersaemaeki, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 42 mm (1.6 inches) | 99% | low |
| February Weather | -8°C (19°F) | 40 mm (1.6 inches) | 97% | low |
| March Weather | -3°C (26°F) | 39 mm (1.6 inches) | 95% | low |
| April Weather | 2°C (36°F) | 43 mm (1.7 inches) | 87% | moderate |
| May Weather | 8°C (47°F) | 58 mm (2.3 inches) | 78% | moderate |
| June Weather | 15°C (59°F) | 59 mm (2.3 inches) | 74% | high |
| July Weather | 16°C (62°F) | 80 mm (3.2 inches) | 80% | high |
| August Weather | 14°C (58°F) | 80 mm (3.2 inches) | 85% | moderate |
| September Weather | 9°C (49°F) | 75 mm (3.0 inches) | 91% | moderate |
| October Weather | 4°C (39°F) | 82 mm (3.2 inches) | 95% | low |
| November Weather | -1°C (31°F) | 64 mm (2.5 inches) | 94% | low |
| December Weather | -4°C (24°F) | 52 mm (2.1 inches) | 98% | low |