Last updated: August 23, 2025
In December, the average temperature in Piriac-sur-Mer, France hovers around 9°C (48°F). Expect chilly nights with minimums dipping to -1°C (31°F), while daytime highs can reach a comfortable 14°C (58°F). This month brings about 109 mm (4.3 in) of precipitation spread over 15 days, contributing to an average humidity level of 82%—perfect for cozy indoor activities!
In December in Piriac-sur-Mer, the average temperature is 9°C (48°F). The maximum can reach 14°C (58°F), while the minimum can drop as low as -1°C (31°F). Travelers should prepare for cool to mild weather with possible chilly evenings.
In Piriac-sur-Mer in December, the precipitation amount is 109 mm (4.3 in) spread over 15 days.
In Piriac-sur-Mer in December, humidity is 82%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers for your travels while keeping an umbrella handy for unexpected drizzles.
In Piriac-sur-Mer 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 Piriac-sur-Mer, you can visit Hourly UV Index in Piriac-sur-Mer.
UV Risk Categories
Weather in Piriac-sur-Mer varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Piriac-sur-Mer, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 7°C (45°F) | 49 mm (1.9 inches) | 82% | low |
| February Weather | 8°C (47°F) | 69 mm (2.7 inches) | 83% | moderate |
| March Weather | 9°C (49°F) | 65 mm (2.6 inches) | 81% | moderate |
| April Weather | 12°C (53°F) | 45 mm (1.8 inches) | 82% | high |
| May Weather | 14°C (58°F) | 63 mm (2.5 inches) | 82% | very high |
| June Weather | 18°C (64°F) | 75 mm (3.0 inches) | 80% | very high |
| July Weather | 19°C (67°F) | 47 mm (1.8 inches) | 77% | very high |
| August Weather | 19°C (66°F) | 51 mm (2.0 inches) | 78% | very high |
| September Weather | 17°C (63°F) | 39 mm (1.5 inches) | 79% | high |
| October Weather | 14°C (57°F) | 87 mm (3.4 inches) | 82% | moderate |
| November Weather | 10°C (50°F) | 76 mm (3.0 inches) | 81% | low |
| December Weather | 9°C (48°F) | 109 mm (4.3 inches) | 82% | low |