Last updated: August 23, 2025
In December, the average temperature in Jaerva-Jaani, Estonia hovers around -2°C (29°F), with minimums dipping to a brisk -25°C (-12°F) and highs reaching a mild 8°C (46°F). During this time, precipitation amounts to 59 mm (2.3 in) spread over 14 days, contributing to an average humidity of an impressive 93%.
In December in Jaerva-Jaani, the average temperature is -2°C (29°F), with maximums reaching 8°C (46°F) and minimums dropping as low as -25°C (-12°F). Travelers should prepare for cold weather and pack accordingly to ensure a comfortable experience.
In Jaerva-Jaani in December, the total precipitation amount is 59 mm (2.3 in) spread over 14 days.
In Jaerva-Jaani in December humidity is 93%. With an average temperature of -2°C (29°F), this humidity feels like a dense, frosty blanket that clings to you, making the cold seep into your bones and transforming outdoor activities into a chilly challenge.
In Jaerva-Jaani 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 Jaerva-Jaani.
UV Risk Categories
Weather in Jaerva-Jaani varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Jaerva-Jaani, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 42 mm (1.7 inches) | 95% | low |
| February Weather | -3°C (26°F) | 46 mm (1.8 inches) | 93% | low |
| March Weather | -1°C (31°F) | 49 mm (1.9 inches) | 90% | moderate |
| April Weather | 4°C (40°F) | 47 mm (1.8 inches) | 87% | moderate |
| May Weather | 10°C (51°F) | 52 mm (2.1 inches) | 73% | moderate |
| June Weather | 16°C (61°F) | 66 mm (2.6 inches) | 77% | high |
| July Weather | 17°C (64°F) | 71 mm (2.8 inches) | 80% | high |
| August Weather | 16°C (61°F) | 99 mm (3.9 inches) | 84% | high |
| September Weather | 12°C (54°F) | 69 mm (2.7 inches) | 89% | moderate |
| October Weather | 7°C (45°F) | 81 mm (3.2 inches) | 92% | low |
| November Weather | 3°C (37°F) | 55 mm (2.2 inches) | 93% | low |
| December Weather | -2°C (29°F) | 59 mm (2.3 inches) | 93% | low |