Last updated: August 23, 2025
In Seissan, France, the average temperature in December hovers around 8°C (46°F). Expect chilly days where the temperature can dip to a minimum of -4°C (25°F), while the maximum can reach a mild 19°C (67°F). Be prepared for some rain, as precipitation averages 134 mm (5.3 in) over approximately 15 days. With an average humidity of 88%, it’s a good idea to pack your layers and an umbrella!
In December in Seissan, the average temperature is 8°C (46°F). The maximum can reach 19°C (67°F), while the minimum can dip as low as -4°C (25°F). This variability makes it wise to pack both warm and light layers for your travels.
In Seissan in December, the total precipitation amount is 134 mm (5.3 in) spread over a period of 15 days.
In Seissan in December, humidity is 88%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration feel much more uncomfortable than the temperature alone would suggest.
In Seissan in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Seissan, you can visit Hourly UV Index in Seissan.
UV Risk Categories
Weather in Seissan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Seissan, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (42°F) | 72 mm (2.9 inches) | 87% | low |
| February Weather | 9°C (48°F) | 69 mm (2.7 inches) | 83% | moderate |
| March Weather | 10°C (50°F) | 69 mm (2.7 inches) | 80% | moderate |
| April Weather | 13°C (55°F) | 78 mm (3.1 inches) | 77% | high |
| May Weather | 16°C (61°F) | 101 mm (4.0 inches) | 75% | very high |
| June Weather | 20°C (68°F) | 95 mm (3.8 inches) | 74% | very high |
| July Weather | 22°C (72°F) | 62 mm (2.4 inches) | 72% | very high |
| August Weather | 22°C (72°F) | 53 mm (2.1 inches) | 70% | very high |
| September Weather | 19°C (67°F) | 69 mm (2.7 inches) | 73% | high |
| October Weather | 15°C (58°F) | 69 mm (2.7 inches) | 82% | moderate |
| November Weather | 9°C (49°F) | 92 mm (3.6 inches) | 87% | moderate |
| December Weather | 8°C (46°F) | 134 mm (5.3 inches) | 88% | low |