Cannes Weather in September
Cannes in September averages 24°C (75°F) during the day and 18°C (64°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Cannes in September
The climate data from previous years indicates about 6 days of rain, averaging 80 mm (3.1 in) for the month. Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.
Temperature in Cannes in September
September is a good time to be in Cannes. Days are excellent, reaching 24°C (75°F), with nights around 18°C (64°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows of 18°C (64°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Cannes in September
The city usually sees around 226 hours of sunlight, indicating many sunny days — a great month for sightseeing.
Wind Speed in Cannes in September
Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.
Average water temperature in September
With water at 22°C (72°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit France, check out our Cannes's climate page.
Cannes Temperature in September
Min Temperature
18°C (64°F)
Max Temperature
24°C (75°F)
Water Temperature
22°C (72°F) *
Chance of Rain
21%
Precipitation
80 mm (3.1 in)
Rainy days
6 days
Humidity
76% *
Windspeed
3 m/s (6 knots) *
Sunshine
226 hours *
Percentage Sunshine
66% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cannes typically stay consistent throughout September, with daily highs averaging around 24°C (75°F). Nights are pleasant, with lows typically ranging from 14°C (57°F) to 18°C (64°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Cannes in September
Browse day-by-day weather records for Cannes spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cannes historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Cannes.
- On September 3, 2009, temperatures climbed to 34°C (93°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 16°C (61°F), recorded on September 22, 1977.
- The lowest overnight temperature recorded in September was 7°C (45°F) (September 28, 2007).
Best Places in France in September
Find out more about the weather in France and which places have the best travel conditions in this month. See all of France in September →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Cannes in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. With water temperatures around 22°C (72°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Cannes in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit France, check out our Cannes's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Cannes climate overview or explore weather in France.
