Fos-sur-Mer Weather in September

September in Fos-sur-Mer sees daytime temperatures around 26°C (79°F) and lows of 17°C (63°F) at night. With around 78 mm (3.1 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Fos-sur-Mer in September

Records from the past 30 years suggest around 7 days of rain, with 78 mm (3.1 in) average for the month. Although rain is not especially frequent, individual showers can still be quite heavy.

Temperature in Fos-sur-Mer in September

Weather in Fos-sur-Mer is at its excellent in September. Highs reach 26°C (79°F), while nights settle around 17°C (63°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 17°C (63°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Fos-sur-Mer in September

The days are predominantly sunny, with an estimated total of around 260 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. April, May, June, September and October typically offer the best weather for Fos-sur-Mer.