Click on a day for an hourly weather forecast
The temperatures in Cassis in May are comfortable with low of 15°C and and high up to 19°C.
You can expect about 3 to 8 days of rain in Cassis during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Cassis in May 2026.
If you’re planning to visit Cassis in the near future, we highly recommend that you review the 14 day weather forecast for Cassis before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 11° / 7° | 5 | 26 | 0 | 84 mm | Ok | Cassis in January |
| February | 12° / 7° | 4 | 23 | 1 | 73 mm | Ok | Cassis in February |
| March | 14° / 9° | 4 | 27 | 0 | 69 mm | Good | Cassis in March |
| April | 16° / 12° | 4 | 26 | 0 | 88 mm | Good | Cassis in April |
| May | 19° / 15° | 3 | 28 | 0 | 76 mm | Good | Cassis in May |
| June | 24° / 19° | 2 | 28 | 0 | 50 mm | Perfect | Cassis in June |
| July | 26° / 21° | 2 | 29 | 0 | 27 mm | Perfect | Cassis in July |
| August | 27° / 22° | 1 | 30 | 0 | 28 mm | Perfect | Cassis in August |
| September | 24° / 19° | 3 | 27 | 0 | 65 mm | Perfect | Cassis in September |
| October | 20° / 15° | 5 | 26 | 0 | 136 mm | Good | Cassis in October |
| November | 15° / 12° | 5 | 25 | 0 | 149 mm | Good | Cassis in November |
| December | 12° / 8° | 4 | 27 | 0 | 77 mm | Ok | Cassis in December |