La Seyne-sur-Mer Weather in September

September in La Seyne-sur-Mer sees daytime temperatures around 24°C (75°F) and lows of 18°C (64°F) at night. With around 67 mm (2.6 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in La Seyne-sur-Mer in September

You can expect rain on around 6 days based on historical patterns, with 67 mm (2.6 in) average for the month. Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.

Temperature in La Seyne-sur-Mer in September

September in La Seyne-sur-Mer is generally excellent, with days reaching 24°C (75°F) and nights settling around 18°C (64°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 18°C (64°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in La Seyne-sur-Mer in September

With approximately 263 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Average water temperature in September

The water sits at 21°C (70°F), which is a nice temperature for swimming. Not too cold, not too warm, most visitors are happy to spend time in the water.

So this is a great month to visit if you prefer dry days with pleasant temperatures.