Month by month
| Month | Afternoon | Sea | Rain | Verdict |
|---|---|---|---|---|
| January | 12.1 °C | 14.2 °C | 7 days | Possible, with trade-offs |
| February | 13.5 °C | 13.7 °C | 7 days | Possible, with trade-offs |
| March | 15.5 °C | 14 °C | 6 days | Possible, with trade-offs |
| April | 18.2 °C | 15.1 °C | 7 days | Possible, with trade-offs |
| May | 21.8 °C | 17.2 °C | 8 days | Pleasant — a good time to go |
| June | 26.8 °C | 21 °C | 5 days | Ideal — one of the best times of year |
| July | 30.2 °C | 23 °C | 1 day | Ideal — one of the best times of year |
| August | 29.7 °C | 23.9 °C | 2 days | Ideal — one of the best times of year |
| September | 25.5 °C | 22.5 °C | 6 days | Ideal — one of the best times of year |
| October | 21.3 °C | 20 °C | 8 days | Pleasant — a good time to go |
| November | 16.2 °C | 17.7 °C | 10 days | Possible, with trade-offs |
| December | 13.4 °C | 15.4 °C | 7 days | Possible, with trade-offs |
Before you go
Three things to check once you have picked your dates.
Entry
France is in the European Union. Entry rules depend on your nationality — check before booking.
Safety
No specific restrictions
Usual precautions apply.
Official advice updated 11 August 2026
Health
Recommended vaccinations, water quality, mosquitoes: advice depends on the country and the season. Some vaccines need time before departure.
Beau Fixe is not a safety or health authority. These notes summarise public advisories and link to their source; only the competent authorities are authoritative. Alert levels: Foreign, Commonwealth & Development Office (gov.uk), Open Government Licence v3.0.
FAQ
Can you swim in Cassis in November?
The sea averages 17.7°C in November — too cold for most swimmers.
How hot is Cassis in November?
Expect 16.2°C in the afternoon and 9.6°C at night, averaged over the last 10 years.
Does it rain a lot in Cassis in November?
Around 10 days with rain (≥ 1 mm) in the month — 34% of days.