Le Castellet Weather in September

Le Castellet in September averages 24°C (75°F) during the day and 17°C (63°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Le Castellet in September

Historically, the month has about 7 days of rain, averaging 70 mm (2.8 in) in total. The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.

Temperature in Le Castellet in September

Le Castellet in September has excellent weather. Days reach 24°C (75°F) and nights cool to 17°C (63°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 17°C (63°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Le Castellet in September

Expect a lot of sunshine this month, with about 263 hours of sun. These sunny conditions add to the overall experience.

Average water temperature in September

With water at 21°C (70°F), conditions are good for swimming and other water activities. You won't need a wetsuit and most people find it very comfortable.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August, September and October typically offer the best weather for Le Castellet.