Last updated: August 23, 2025
In La Seyne-sur-Mer, France, the average temperature in January hovers around 10°C (51°F). However, be prepared for a range, as temperatures can dip to a chilly 3°C (37°F) or rise to a pleasant 17°C (63°F). Expect 53 mm (2.1 in) of precipitation over approximately 7 days, along with an average humidity of 80%.
In January in La Seyne-sur-Mer, the average temperature is 10°C (51°F). Maximum temperatures can reach 17°C (63°F), while the minimum can drop to as low as 3°C (37°F). Overall, it's a pleasant time to explore La Seyne-sur-Mer, but be sure to pack layers to stay comfortable during cooler moments.
In La Seyne-sur-Mer in January, the total precipitation amount is 53 mm (2.1 in) spread over a period of 7 days.
In La Seyne-sur-Mer in January, humidity is 80%. With an average temperature of 10°C (51°F), this humidity feels like a damp layer clinging to the skin, making outdoor activities uncomfortable and requiring travelers to dress in layers to cope with the chill and moisture in the air.
In La Seyne-sur-Mer in January, 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 La Seyne-sur-Mer, you can visit Hourly UV Index in La Seyne-sur-Mer.
UV Risk Categories
Weather in La Seyne-sur-Mer varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in La Seyne-sur-Mer, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 10°C (51°F) | 53 mm (2.1 inches) | 80% | low |
| February Weather | 11°C (52°F) | 44 mm (1.7 inches) | 73% | moderate |
| March Weather | 12°C (54°F) | 49 mm (1.9 inches) | 71% | moderate |
| April Weather | 14°C (57°F) | 69 mm (2.7 inches) | 75% | high |
| May Weather | 17°C (63°F) | 48 mm (1.9 inches) | 74% | very high |
| June Weather | 22°C (71°F) | 19 mm (0.7 inches) | 72% | very high |
| July Weather | 24°C (76°F) | 8 mm (0.3 inches) | 69% | very high |
| August Weather | 25°C (77°F) | 13 mm (0.5 inches) | 66% | very high |
| September Weather | 22°C (72°F) | 40 mm (1.6 inches) | 71% | high |
| October Weather | 18°C (65°F) | 85 mm (3.3 inches) | 78% | moderate |
| November Weather | 14°C (58°F) | 124 mm (4.9 inches) | 82% | moderate |
| December Weather | 11°C (53°F) | 75 mm (2.9 inches) | 79% | low |