Last updated: August 23, 2025
In Saint-Hilaire-de-Riez, France, the average temperature in December is a cool 9°C (49°F). Expect minimums dipping to 1°C (34°F) and maximums reaching up to 16°C (60°F). During this period, the area sees about 114 mm (4.5 in) of precipitation, typically over 16 days. With an average humidity of 90%, prepare for a damp and chilly experience!
In December in Saint-Hilaire-de-Riez, the average temperature is 9°C (49°F). The maximum can reach 16°C (60°F), while the minimum can drop to as low as 1°C (34°F). Travelers should prepare for cool weather and pack layers to stay comfortable during their visit.
In Saint-Hilaire-de-Riez in December, the precipitation amount is 114 mm (4.5 in), occurring over a span of 16 days.
In Saint-Hilaire-de-Riez in December humidity is 90%. With an average temperature of 9°C (49°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities less enjoyable and necessitating extra layers to stay warm and comfortable while traveling.
In Saint-Hilaire-de-Riez 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 Saint-Hilaire-de-Riez, you can visit Hourly UV Index in Saint-Hilaire-de-Riez.
UV Risk Categories
Weather in Saint-Hilaire-de-Riez varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint-Hilaire-de-Riez, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 7°C (46°F) | 54 mm (2.1 inches) | 88% | low |
| February Weather | 9°C (48°F) | 64 mm (2.5 inches) | 87% | moderate |
| March Weather | 10°C (50°F) | 64 mm (2.5 inches) | 84% | moderate |
| April Weather | 12°C (54°F) | 36 mm (1.4 inches) | 83% | high |
| May Weather | 15°C (59°F) | 55 mm (2.2 inches) | 81% | very high |
| June Weather | 18°C (65°F) | 68 mm (2.7 inches) | 75% | very high |
| July Weather | 20°C (68°F) | 36 mm (1.4 inches) | 65% | very high |
| August Weather | 19°C (67°F) | 43 mm (1.7 inches) | 67% | very high |
| September Weather | 18°C (64°F) | 45 mm (1.8 inches) | 75% | high |
| October Weather | 15°C (58°F) | 77 mm (3.0 inches) | 85% | moderate |
| November Weather | 11°C (51°F) | 83 mm (3.3 inches) | 88% | low |
| December Weather | 9°C (49°F) | 114 mm (4.5 inches) | 90% | low |