Last updated: August 23, 2025
In Tuulos, Finland, the average temperature in December hovers around -2°C (28°F). Be prepared for chillier spells, as temperatures can drop as low as -20°C (-4°F), while occasional highs reach up to 5°C (41°F). Additionally, you can expect 64 mm (2.5 in) of precipitation over approximately 14 days, coupled with an average humidity of 95%. It's a month that calls for warm layers and a cozy vibe!
In December in Tuulos, the average temperature is -2°C (28°F). The maximum can reach 5°C (41°F), while the minimum can drop as low as -20°C (-4°F). It's advisable to pack warm clothing and prepare for variable weather conditions if you're planning to travel during this time.
In Tuulos in December, the precipitation amount is 64 mm (2.5 in) spread out over 14 days.
In Tuulos in December humidity is 95%. With an average temperature of -2°C (28°F), this humidity feels like a damp, frigid chill that seeps into your bones, making traveling uncomfortable and the air heavy with a biting cold that dampens your spirits.
In Tuulos 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 Tuulos.
UV Risk Categories
Weather in Tuulos varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Tuulos, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 46 mm (1.8 inches) | 97% | low |
| February Weather | -5°C (24°F) | 40 mm (1.6 inches) | 95% | low |
| March Weather | -2°C (29°F) | 42 mm (1.7 inches) | 93% | moderate |
| April Weather | 3°C (38°F) | 45 mm (1.8 inches) | 86% | moderate |
| May Weather | 10°C (50°F) | 60 mm (2.4 inches) | 75% | moderate |
| June Weather | 16°C (61°F) | 74 mm (2.9 inches) | 75% | high |
| July Weather | 17°C (63°F) | 83 mm (3.3 inches) | 80% | high |
| August Weather | 16°C (60°F) | 84 mm (3.3 inches) | 83% | moderate |
| September Weather | 11°C (52°F) | 66 mm (2.6 inches) | 90% | moderate |
| October Weather | 6°C (43°F) | 78 mm (3.1 inches) | 93% | low |
| November Weather | 2°C (36°F) | 53 mm (2.1 inches) | 94% | low |
| December Weather | -2°C (28°F) | 64 mm (2.5 inches) | 95% | low |