Olonne-sur-Mer Weather in September

Olonne-sur-Mer in September sees pleasant temperatures, with highs around 21°C (70°F) and overnight lows of 15°C (59°F). Rainfall is fairly high at around 62 mm (2.4 in) on average, so pack waterproofs just in case.

Rainfall in Olonne-sur-Mer in September

Typically, about 13 days will experience rainfall, with an average of 62 mm (2.4 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Olonne-sur-Mer in September

Olonne-sur-Mer in September is worth a visit. The temperature is excellent, with 21°C (70°F) during the day and 15°C (59°F) at night. Experience the summer season in September. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows of 15°C (59°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Olonne-sur-Mer in September

The days are predominantly sunny, with an estimated total of around 212 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Olonne-sur-Mer.