SeasonMapLa Rochelle weather in August
France
August in La Rochelle: warm, dry, with clean air — one of the best months to visit.
#1 of 12 months in La Rochelle · #74 of 1383 destinations to visit in August · comfort 93/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on La Rochelle in August
Other months in La Rochelle
La Rochelle's forum calls early July generally sunny and warm, high 20s°C on a good day, with sunny weeks and rainy weeks both possible and hard to predict in advance. Regulars are consistent that this stretch of Atlantic coast sees sunny days clearly outnumber rainy ones in summer, but pack a raincoat for the occasional thunderstorm regardless.
Add your own note from La Rochelle's card on the map.
La Rochelle climate normals — August
| Daytime high | 25°C / 76°F | 🌤 warm |
|---|---|---|
| Nighttime low | 18°C / 65°F | |
| Feels like (high) | 25°C / 77°F | |
| Sea temperature | 23°C / 73°F | 🙂 pleasant |
| Rainfall | 26 mm / 1 in | ☀️ dry |
| Rainy days | 5 days | |
| Humidity | 71% | 💧 humid |
| Dew point | 15°C / 59°F | |
| Sunshine | 11.8 h/day | |
| Daylight | 14.1 h | |
| Wind | 20 km/h / 13 mph | |
| Air quality (US AQI) | 36 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in La Rochelle in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsThe Ile de Re summer, Summer holidays in France, school holidays in 6 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for La Rochelle's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherLa Rochelle's weather peaks July–September, best around August.
Best weatherFair weatherToughest weather
What's on in La Rochelle in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Atlantic swimming season
25 Jun – 20 Sep · usuallySea warm enoughThe bay only really warms up from the end of June and cools quickly after the first September gales. Locals swim either side of that in a wetsuit and think nothing of it.
- Holiday
The Ile de Re summer
10 Jul – 25 AugSchool holidaysCrowdedBook earlyHalf of Paris takes the island for the school holidays and everything crosses the same toll bridge. Go over early or late in the day, and do not expect to park in the old port at all. Source ↗
Nearby, and something's on
Within 300 km of La Rochelle — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is La Rochelle?
La Rochelle in August — FAQ
- Is August a good time to visit La Rochelle?
- August in La Rochelle: warm, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for La Rochelle on SeasonMap's comfort score (93/100).
- What is the weather like in La Rochelle in August?
- In August, La Rochelle averages a daily high of 24.7°C and a low of 18.2°C, with about 26 mm of rain over roughly 5.1 rainy days.
- What is the air quality in La Rochelle in August?
- La Rochelle has a mean US Air Quality Index of about 36 in August.
Other months in La Rochelle
Compare La Rochelle in August
Warmer or cooler than La Rochelle in August
Similar destinations in Western Europe — August
Within 300 km: Nantes' Le Voyage a Nantes on 4 Jul – 6 Sep, and Bordeaux's The August emptying around 1–25 Aug.