Last updated: August 23, 2025
In Puumala, Finland, the average temperature in December hovers around -3°C (27°F), with minimums plunging to -18°C (0°F) and maximums reaching a mild 4°C (39°F). During this chilly month, precipitation is common, averaging 80 mm (3.2 in) spread over 18 days, contributing to a high average humidity of 95%. Stay warm and prepare for wet conditions!
In December in Puumala, the average temperature is -3°C (27°F), with a maximum that can reach 4°C (39°F) and a minimum that can dip as low as -18°C (0°F). Travelers should be prepared for cold weather conditions and dress in layers to stay warm.
In Puumala in December, the precipitation amount is 80 mm (3.2 in) during 18 days, indicating a relatively wet period for the region.
In Puumala in December, humidity is 95%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that penetrates your clothes, making every breath feel heavy and damp, which can be quite uncomfortable for traveling.
In Puumala 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 Puumala.
UV Risk Categories
Weather in Puumala varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Puumala, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (24°F) | 52 mm (2.0 inches) | 98% | low |
| February Weather | -6°C (22°F) | 53 mm (2.1 inches) | 96% | low |
| March Weather | -3°C (27°F) | 47 mm (1.9 inches) | 93% | moderate |
| April Weather | 1°C (35°F) | 42 mm (1.7 inches) | 88% | moderate |
| May Weather | 8°C (48°F) | 52 mm (2.1 inches) | 77% | moderate |
| June Weather | 16°C (62°F) | 67 mm (2.6 inches) | 75% | high |
| July Weather | 18°C (65°F) | 90 mm (3.5 inches) | 82% | high |
| August Weather | 17°C (62°F) | 111 mm (4.4 inches) | 84% | moderate |
| September Weather | 12°C (53°F) | 93 mm (3.7 inches) | 90% | moderate |
| October Weather | 6°C (43°F) | 117 mm (4.6 inches) | 93% | low |
| November Weather | 2°C (36°F) | 82 mm (3.2 inches) | 93% | low |
| December Weather | -3°C (27°F) | 80 mm (3.2 inches) | 95% | low |