Last updated: August 27, 2025
In December, the average temperature in Syumsi, Russian Federation hovers around -8°C (17°F). While you might experience bitter cold with minimums dropping to -29°C (-21°F), there’s a chance to enjoy milder days with highs reaching 4°C (39°F). Expect 47 mm (1.9 in) of precipitation over 11 days, adding a touch of wetness to the chilly air, while the average humidity lingers at a brisk 88%.
In December in Syumsi, the average temperature is -8°C (17°F). Maximums can reach 4°C (39°F) and minimums can be as low as -29°C (-21°F). Travelers should be prepared for extremely cold conditions and dress in layers to stay warm.
In Syumsi in December, the total precipitation amount is 47 mm (1.9 in) over the course of 11 days.
In Syumsi in December humidity is 88%. With an average temperature of -8°C (17°F), this humidity feels like a biting chill, making travel uncomfortable and prompting the need for extra layers to ward off the damp cold that seeps into your bones.
In Syumsi 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 Syumsi.
UV Risk Categories
Weather in Syumsi varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Syumsi, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (14°F) | 44 mm (1.7 inches) | 99% | low |
| February Weather | -9°C (16°F) | 50 mm (2.0 inches) | 97% | low |
| March Weather | -4°C (25°F) | 46 mm (1.8 inches) | 96% | moderate |
| April Weather | 4°C (39°F) | 63 mm (2.5 inches) | 89% | moderate |
| May Weather | 12°C (54°F) | 41 mm (1.6 inches) | 74% | high |
| June Weather | 16°C (62°F) | 55 mm (2.2 inches) | 70% | high |
| July Weather | 19°C (67°F) | 81 mm (3.2 inches) | 72% | high |
| August Weather | 17°C (63°F) | 55 mm (2.2 inches) | 71% | high |
| September Weather | 10°C (51°F) | 48 mm (1.9 inches) | 87% | moderate |
| October Weather | 5°C (41°F) | 59 mm (2.3 inches) | 91% | moderate |
| November Weather | -3°C (28°F) | 46 mm (1.8 inches) | 93% | low |
| December Weather | -8°C (17°F) | 47 mm (1.9 inches) | 88% | low |