La Rochelle in september: average Weather, Temperature and Climate
Weather in La Rochelle in september 2025
The weather in La Rochelle in september comes from statistical datas on the last years. You can view the weather statistics for the whole month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather UV index: 6
Weather at 6am
61°F
Clear/Sunny
47% of time
26%
14%
9%
Weather at 12pm
72°F
Clear/Sunny
53% of time
24%
15%
6%
Weather at 6pm
68°F
Clear/Sunny
52% of time
27%
12%
8%
Weather at 3am
63°F
52%
20%
17%
9%
Evolution of daily average temperature and precipitation in La Rochelle in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in La Rochelle in september.
The climate of La Rochelle in september is good
The climate in september in La Rochelle is quite dry (with 2.6in of precipitation over 4 days). The weather is worst than the previous month since in august there is an average of 2.3in of precipitation over 4 days.
The climate good in that locality september. Temperatures are up to 74°F. The seasonal minimum is 61°F. Thus, the mean temperature average on this month of september in La Rochelle is 67°F. These temperatures are far removed from those records observed in La Rochelle in the month of september with a maximum record of 92°F in 2016 and a minimum record of 47°F in 2010.
In september in La Rochelle, the days on average last 12:33. Sunrise is at 06:43 and sunset is at 19:16.
With good weather conditions, the month of september is advisable to go in that area.
Seasonal average climate and temperature of La Rochelle in september
Check below seasonal norms These datas are set from the weather statements earlier years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 67°F | ||||
| Highest temperature | 74°F | ||||
| Lowest temperature | 61°F | ||||
| Highest record temperature | 92°F (2016) | ||||
| Lowest record temperature | 47°F (2010) | ||||
| Number of days at +86°F | 0 day(s) (0%) | ||||
| Number of days at +65°F | 29 day(s) (97%) | ||||
| Sea temperature | |||||
| Average sea temperature | 67°F | ||||
| Lowest sea temperature | 64°F | ||||
| Highest sea temperature | 70°F | ||||
| Wind | |||||
| Wind speed | 20km/h | ||||
| Wind temperature | 61°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2.6in | ||||
| Number of days with rainfall | 4 day(s) (15%) | ||||
| Record daily rainfall | 1.5in (2015) | ||||
| Other climate data | |||||
| Humidity | 82% | ||||
| Visibility | 9.69km | ||||
| Cloud cover | 28% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:43 | ||||
| Time of sunset | 19:16 | ||||
| Length of day | 12:33 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in La Rochelle in september 2024:
65°F to 68°F
65°F to 67°F
65°F to 70°F
58°F to 67°F
59°F to 63°F
59°F to 65°F
58°F to 65°F
63°F to 65°F
65°F to 67°F
56°F to 65°F
61°F to 63°F
52°F to 61°F
49°F to 65°F
52°F to 68°F
52°F to 70°F
54°F to 70°F
56°F to 74°F
59°F to 74°F
59°F to 70°F
61°F to 68°F
61°F to 65°F
63°F to 67°F
61°F to 65°F
59°F to 65°F
61°F to 63°F
63°F to 67°F
59°F to 61°F
50°F to 61°F
54°F to 61°F
61°F to 63°F
Map: other cities in Charentes in september
Cities near La Rochelle:
| Aytré in september | good weather |
| Nieul-sur-Mer in september | good weather |
| Angoulins in september | good weather |
| Esnandes in september | good weather |
| Chatelaillon-Plage in september | good weather |
| Aix Island (ile d'aix) in september | good weather |
| Yves in september | good weather |
| Île de Ré in september | good weather |
| Fouras in september | good weather |
| Marais poitevin (Marans) in september | good weather |
| Saint-Denis-d'Oleron in september | good weather |
| Port-des-Barques in september | good weather |
Click over cities on the map for information about the weather in september.
La Rochelle
perfect weather
good
tolerable
bad
very bad
Weather data for La Rochelle in september:
Weather data for La Rochelle for september are derived from an average of the weather forecast since 2009 in La Rochelle. There is a margin of error and these forecasts are to be considered as general information only. The weather in La Rochelle can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to La Rochelle.