Click on a day for an hourly weather forecast
The weather in Cannes in August is hot. The average temperatures are between 21°C and 28°C.
You can expect a few rainy days in Cannes during August, but usually the weather is comfortable in August.
Our weather forecast can give you a great sense of what weather to expect in Cannes in August 2025.
If you’re planning to visit Cannes in the near future, we highly recommend that you review the 14 day weather forecast for Cannes before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 12° / 7° | 3 | 28 | 0 | 63 mm | Ok | Cannes in January |
| February | 13° / 7° | 4 | 23 | 1 | 76 mm | Ok | Cannes in February |
| March | 15° / 9° | 4 | 27 | 0 | 71 mm | Good | Cannes in March |
| April | 17° / 11° | 4 | 26 | 0 | 87 mm | Good | Cannes in April |
| May | 21° / 14° | 3 | 28 | 0 | 74 mm | Good | Cannes in May |
| June | 25° / 18° | 3 | 27 | 0 | 49 mm | Perfect | Cannes in June |
| July | 27° / 21° | 2 | 29 | 0 | 33 mm | Perfect | Cannes in July |
| August | 28° / 21° | 1 | 30 | 0 | 23 mm | Perfect | Cannes in August |
| September | 25° / 19° | 2 | 28 | 0 | 54 mm | Perfect | Cannes in September |
| October | 20° / 15° | 4 | 27 | 0 | 129 mm | Good | Cannes in October |
| November | 16° / 11° | 5 | 25 | 0 | 180 mm | Good | Cannes in November |
| December | 13° / 8° | 3 | 28 | 0 | 100 mm | Ok | Cannes in December |