Last updated: August 23, 2025
In Longeville-sur-Mer, France, the average temperature in September hovers around 18°C (65°F), offering a mild climate. You'll experience a minimum of 6°C (44°F) and can bask in highs of up to 33°C (91°F). Be prepared for 39 mm (1.6 in) of precipitation spread over 8 days, contributing to an average humidity of 75%. Whether you're exploring or relaxing, it's a vibrant time to enjoy the local charm!
In September in Longeville-sur-Mer, the average temperature is 18°C (65°F). Maximum temperatures can reach 33°C (91°F), while minimums can dip as low as 6°C (44°F). This range makes it a perfect time for travelers to enjoy various outdoor activities while being prepared for both warm days and cooler evenings.
In Longeville-sur-Mer in September, the precipitation amount is 39 mm (1.6 in) over the course of 8 days.
In Longeville-sur-Mer in September, humidity is 75%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket that can make outdoor exploration feel a bit stifling, potentially leading to discomfort during travel activities.
In Longeville-sur-Mer in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Longeville-sur-Mer, you can refer to this Hourly UV Index in Longeville-sur-Mer.
UV Risk Categories
Weather in Longeville-sur-Mer varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Longeville-sur-Mer, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 7°C (45°F) | 58 mm (2.3 inches) | 88% | low |
| February Weather | 8°C (47°F) | 69 mm (2.7 inches) | 87% | moderate |
| March Weather | 10°C (50°F) | 72 mm (2.8 inches) | 84% | moderate |
| April Weather | 12°C (54°F) | 37 mm (1.5 inches) | 83% | high |
| May Weather | 15°C (60°F) | 61 mm (2.4 inches) | 81% | very high |
| June Weather | 19°C (66°F) | 70 mm (2.7 inches) | 75% | very high |
| July Weather | 21°C (70°F) | 27 mm (1.1 inches) | 65% | very high |
| August Weather | 20°C (68°F) | 32 mm (1.2 inches) | 67% | very high |
| September Weather | 18°C (65°F) | 39 mm (1.6 inches) | 75% | high |
| October Weather | 14°C (58°F) | 76 mm (3.0 inches) | 85% | moderate |
| November Weather | 10°C (50°F) | 89 mm (3.5 inches) | 88% | moderate |
| December Weather | 9°C (48°F) | 114 mm (4.5 inches) | 90% | low |