Last updated: August 27, 2025
In December, the average temperature in Tomari, Russian Federation hovers around -8°C (19°F), with extremes ranging from a chilly -18°C (-1°F) to a milder 8°C (46°F). Expect about 100 mm (3.9 in) of precipitation spread over approximately 20 days, contributing to a high average humidity of 87%. Prepare for a brisk and damp month!
In December in Tomari, the average temperature is -8°C (19°F), with maximums reaching up to 8°C (46°F) and minimums plummeting as low as -18°C (-1°F). Travelers should be prepared for cold conditions and fluctuations in temperature during this time.
In Tomari in December, the precipitation amount is 100 mm (3.9 in) over the course of 20 days.
In Tomari in December humidity is 87%. With an average temperature of -8°C (19°F), this humidity feels like a biting chill that cuts through your layers, making outdoor travel uncomfortable and brisk, as the cold air clings to your skin and creates an unmistakable sensation of frostiness.
In Tomari 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 Tomari.
UV Risk Categories
Weather in Tomari varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Tomari, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (14°F) | 46 mm (1.8 inches) | 91% | low |
| February Weather | -9°C (16°F) | 48 mm (1.9 inches) | 86% | moderate |
| March Weather | -3°C (26°F) | 56 mm (2.2 inches) | 83% | moderate |
| April Weather | 2°C (36°F) | 55 mm (2.2 inches) | 85% | moderate |
| May Weather | 8°C (46°F) | 67 mm (2.6 inches) | 88% | high |
| June Weather | 11°C (52°F) | 76 mm (3.0 inches) | 88% | very high |
| July Weather | 16°C (61°F) | 62 mm (2.5 inches) | 93% | very high |
| August Weather | 17°C (63°F) | 77 mm (3.0 inches) | 93% | very high |
| September Weather | 15°C (59°F) | 74 mm (2.9 inches) | 87% | high |
| October Weather | 8°C (47°F) | 92 mm (3.6 inches) | 78% | moderate |
| November Weather | 0°C (33°F) | 88 mm (3.5 inches) | 75% | low |
| December Weather | -8°C (19°F) | 100 mm (3.9 inches) | 87% | low |