Last updated: August 27, 2025
In Gastello, Russian Federation, the average temperature in December hovers around -11°C (13°F). Expect temperatures to dip as low as -25°C (-13°F) and occasionally rise to a maximum of 4°C (40°F). This month typically sees 61 mm (2.4 in) of precipitation spread over 7 days, with an average humidity of 88%, making it a chilly and damp time of year.
In December in Gastello, the average temperature is -11°C (13°F), with maximums reaching 4°C (40°F) and minimums dropping as low as -25°C (-13°F). Be sure to pack warm clothing if you plan to travel during this time.
In Gastello in December, the precipitation amount is 61 mm (2.4 in) over the course of 7 days.
In Gastello in December humidity is 88%. With an average temperature of -11°C (13°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and challenging as the cold air clings to your skin, creating a damp and frosty atmosphere.
In Gastello 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 Gastello.
UV Risk Categories
Weather in Gastello varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Gastello, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -14°C (7°F) | 29 mm (1.1 inches) | 94% | low |
| February Weather | -12°C (10°F) | 34 mm (1.3 inches) | 93% | moderate |
| March Weather | -5°C (23°F) | 58 mm (2.3 inches) | 89% | moderate |
| April Weather | 1°C (33°F) | 66 mm (2.6 inches) | 88% | high |
| May Weather | 5°C (42°F) | 70 mm (2.8 inches) | 89% | high |
| June Weather | 9°C (49°F) | 72 mm (2.8 inches) | 87% | very high |
| July Weather | 15°C (59°F) | 59 mm (2.3 inches) | 92% | very high |
| August Weather | 15°C (60°F) | 80 mm (3.2 inches) | 92% | very high |
| September Weather | 14°C (57°F) | 107 mm (4.2 inches) | 88% | high |
| October Weather | 7°C (46°F) | 96 mm (3.8 inches) | 81% | moderate |
| November Weather | -1°C (31°F) | 78 mm (3.1 inches) | 75% | low |
| December Weather | -11°C (13°F) | 61 mm (2.4 inches) | 88% | low |