Last updated: August 23, 2025
In August, the average temperature in Olonne-sur-Mer, France is a pleasant 20°C (68°F). Temperatures can range from a cool 13°C (56°F) to a warm 30°C (86°F), making it ideal for various activities. With an average precipitation of 37 mm (1.5 in) spread over 6 days and a humidity level of 67%, expect a refreshing atmosphere that complements the warm days beautifully.
In August in Olonne-sur-Mer, the average temperature is 20°C (68°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as 13°C (56°F). It's an ideal time for travelers to enjoy pleasant weather while exploring the sights.
In Olonne-sur-Mer in August, the precipitation amount is 37 mm (1.5 in) over the course of 6 days.
In Olonne-sur-Mer in August humidity is 67%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making travel comfortable yet slightly sticky, as the air clings to your skin and invites you to enjoy the sights at a leisurely pace.
In Olonne-sur-Mer in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Olonne-sur-Mer.
UV Risk Categories
Weather in Olonne-sur-Mer varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Olonne-sur-Mer, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 8°C (46°F) | 71 mm (2.8 inches) | 88% | low |
| February Weather | 9°C (48°F) | 78 mm (3.1 inches) | 87% | moderate |
| March Weather | 10°C (50°F) | 76 mm (3.0 inches) | 84% | moderate |
| April Weather | 12°C (54°F) | 35 mm (1.4 inches) | 83% | high |
| May Weather | 15°C (59°F) | 58 mm (2.3 inches) | 81% | very high |
| June Weather | 18°C (65°F) | 68 mm (2.7 inches) | 75% | very high |
| July Weather | 20°C (69°F) | 30 mm (1.2 inches) | 65% | very high |
| August Weather | 20°C (68°F) | 37 mm (1.5 inches) | 67% | very high |
| September Weather | 18°C (65°F) | 46 mm (1.8 inches) | 75% | high |
| October Weather | 15°C (59°F) | 87 mm (3.4 inches) | 85% | moderate |
| November Weather | 11°C (52°F) | 106 mm (4.2 inches) | 88% | moderate |
| December Weather | 10°C (50°F) | 140 mm (5.5 inches) | 90% | low |