Carcassonne Weather in September
Carcassonne in September averages 24°C (75°F) during the day and 13°C (55°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Carcassonne in September
Rain is expected on roughly 9 days, totalling around 62 mm (2.4 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Carcassonne in September
September is a perfect month in Carcassonne, with 24°C (75°F) during the day and 13°C (55°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Carcassonne in September
Expect sunny days throughout the month, with an estimated 214 hours of sunshine. This makes it a pleasant time to visit Carcassonne.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Carcassonne.
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 Carcassonne's climate page.
Carcassonne Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
24°C (75°F)
Chance of Rain
29%
Precipitation
62 mm (2.4 in)
Rainy days
9 days
Humidity
73%
Sunshine
214 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Carcassonne typically drop from around 27°C (81°F) at the start of September to approximately 23°C (73°F) by the end. Nights are cool, with lows typically ranging from 12°C (54°F) to 16°C (61°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 Carcassonne in September
Browse day-by-day weather records for Carcassonne spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Carcassonne historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Carcassonne.
- The hottest September day on record in Carcassonne reached 36°C (97°F) (September 7, 1988).
- The coldest September day was on September 27, 2007, with a maximum of 12°C (54°F).
- Carcassonne registered its coldest September night on September 27, 2025, with temperatures dropping to 4°C (39°F).
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 Carcassonne 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Carcassonne 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 Carcassonne's climate page.
Temperature Rainfall Sunshine Humidity
See the full Carcassonne climate overview or explore weather in France.
