La Rochelle · AutumnMonth summary
La Rochelle weather in September
✅ Good
🌡️ Temperature min / max
59°F – 70°F
🌧 Rainy days
34% of days
☀️ Sunshine
11.4h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.6/10
📅 📅 Best month
July (8.6/10)
Quick decision
Should you visit La Rochelle in September?
✅ Good
✅ Yes if: you want to explore the city on foot without suffering from heat.
❌ No if: you're looking for a beach destination — water and air are still cool.
Our take: September is a good time to visit La Rochelle. July remains slightly better (+1.0 pts).
By trip type
La Rochelle in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
Autumn in La Rochelle is often underrated: 21°F, golden light and declining crowds. An interesting window. Expect rain on 34% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if July (8.6/10) remains theoretically better.
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All months for La Rochelle
Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 41°F | 50°F | 45% | 0.1in | 5.5h | 4.0/10 |
| 🌦️ February | 43°F | 52°F | 40% | 0.1in | 7.7h | 4.5/10 |
| 🌦️ March | 46°F | 54°F | 42% | 0.1in | 10.0h | 5.2/10 |
| ⛅ April | 50°F | 59°F | 34% | 0.1in | 12.0h | 7.0/10 |
| 🌤️ May | 54°F | 64°F | 40% | 0.1in | 13.2h | 7.2/10 |
| 🌤️ June | 61°F | 70°F | 36% | 0.1in | 13.8h | 7.8/10 |
| 🌤️ July | 63°F | 73°F | 24% | 0.0in | 14.1h | 8.6/10 |
| 🌤️ August | 63°F | 73°F | 25% | 0.1in | 13.0h | 8.3/10 |
| 🌤️ September | 59°F | 70°F | 34% | 0.1in | 11.4h | 7.6/10 |
| 🌤️ October | 54°F | 64°F | 39% | 0.1in | 9.5h | 7.0/10 |
| 🌦️ November | 46°F | 55°F | 45% | 0.1in | 7.1h | 4.4/10 |
| 🌦️ December | 43°F | 52°F | 45% | 0.1in | 5.5h | 4.0/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, La Rochelle averages 70°F, 34% rainy days and 11.4h of sunshine per day. Overall weather score: 7.6/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 8.6/10). Difference:
- 🌡️ Max temperature : +2°F
- 🌧 Rainy days : -10%
- ☀️ Sunshine : +2.7h/day
FAQ
FAQ — La Rochelle in September
Is September a good time to visit La Rochelle?
September is an excellent time to visit La Rochelle (score 7.6/10). With 70°F, 11.4h of sunshine and 34% rain, conditions are very favourable.
What to do in La Rochelle in September?
With 70°F max and 11.4h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
Activities and tours in La Rochelle
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