Last updated: August 23, 2025
In Sissy, France, the average temperature in December hovers around 5°C (42°F), with lows dipping to -4°C (26°F) and highs reaching 15°C (58°F). Be prepared for 114 mm (4.5 in) of precipitation spread over 17 days, contributing to an average humidity of 93%. Don’t forget your umbrella and a warm jacket!
In December in Sissy, the average temperature is 5°C (42°F). The maximum can reach 15°C (58°F), while the minimum can drop to as low as -4°C (26°F). Be prepared for a mix of cool days and chilly nights if you're planning to travel during this time.
In Sissy in December, the precipitation amount is 114 mm (4.5 in) recorded over 17 days.
In Sissy in December humidity is 93%. With average temperature 5°C (42°F), this humidity feels like an uncomfortable chill that seeps into your bones, making travel outside feel damp and daunting.
In Sissy 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 Sissy.
UV Risk Categories
Weather in Sissy varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sissy, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 70 mm (2.8 inches) | 91% | low |
| February Weather | 5°C (42°F) | 78 mm (3.1 inches) | 89% | moderate |
| March Weather | 7°C (46°F) | 78 mm (3.1 inches) | 86% | moderate |
| April Weather | 10°C (51°F) | 39 mm (1.5 inches) | 84% | high |
| May Weather | 14°C (57°F) | 60 mm (2.4 inches) | 82% | very high |
| June Weather | 18°C (65°F) | 57 mm (2.3 inches) | 82% | very high |
| July Weather | 20°C (68°F) | 54 mm (2.1 inches) | 80% | very high |
| August Weather | 19°C (67°F) | 74 mm (2.9 inches) | 76% | very high |
| September Weather | 16°C (61°F) | 50 mm (2.0 inches) | 81% | high |
| October Weather | 12°C (54°F) | 85 mm (3.4 inches) | 88% | moderate |
| November Weather | 7°C (45°F) | 69 mm (2.7 inches) | 92% | low |
| December Weather | 5°C (42°F) | 114 mm (4.5 inches) | 93% | low |