Normally the average daily weather in Cassis for the duration of September is 19. High temperatures are around 26 with low temperatures being around 16. The table below has further info:
| Month | Degrees Celsius |
|---|---|
| Temperature | 19 |
| High Temperature | 26 |
| Low Temperature | 16 |
| Sunshine Per Day | 10 |
Useful Links: Cassis Weather: Average Weather & Yearly Climate