Last updated: August 23, 2025
In December, the average temperature in Kiiu, Estonia hovers around -1°C (31°F), with fluctuations ranging from a chilly -18°C (0°F) to a milder 7°C (46°F). Expect 15 days of precipitation totaling 59 mm (2.3 in), contributing to the high average humidity of 93%. Be prepared for a brisk, wet month!
In December in Kiiu, the average temperature is -1°C (31°F), with maximums reaching 7°C (46°F) and minimums plummeting to as low as -18°C (0°F). It's essential to dress warmly and be prepared for cold weather conditions when traveling during this time.
In Kiiu in December, the total precipitation amount is 59 mm (2.3 in) spread over 15 days.
In Kiiu in December, humidity is 93%. With an average temperature of -1°C (31°F), this humidity feels like an icy blanket enveloping you, making travel uncomfortable as the cold air clings to your skin and dampens any warmth you might find.
In Kiiu 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 Kiiu.
UV Risk Categories
Weather in Kiiu varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Kiiu, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 43 mm (1.7 inches) | 95% | low |
| February Weather | -2°C (28°F) | 48 mm (1.9 inches) | 93% | low |
| March Weather | 0°C (32°F) | 46 mm (1.8 inches) | 90% | moderate |
| April Weather | 4°C (40°F) | 46 mm (1.8 inches) | 87% | moderate |
| May Weather | 10°C (49°F) | 55 mm (2.2 inches) | 73% | moderate |
| June Weather | 16°C (60°F) | 57 mm (2.2 inches) | 77% | high |
| July Weather | 18°C (64°F) | 73 mm (2.9 inches) | 80% | high |
| August Weather | 17°C (62°F) | 100 mm (4.0 inches) | 84% | moderate |
| September Weather | 13°C (55°F) | 81 mm (3.2 inches) | 89% | moderate |
| October Weather | 8°C (46°F) | 97 mm (3.8 inches) | 92% | low |
| November Weather | 4°C (39°F) | 59 mm (2.3 inches) | 93% | low |
| December Weather | -1°C (31°F) | 59 mm (2.3 inches) | 93% | low |