Alsace · AutumnMonth summary
Alsace weather in September
✅ Good
🌡️ Temperature min / max
55°F – 70°F
🌧 Rainy days
37% of days
☀️ Sunshine
11.0h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.5/10
📅 📅 Best month
July (8.4/10)
Quick decision
Should you visit Alsace 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: Alsace in September: 70°F and 11.0h of sunshine. Decent, but not the peak.
By trip type
Alsace in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : — No sea access
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
Autumn in Alsace is often underrated: 21°F, golden light and declining crowds. An interesting window. Expect rain on 37% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if July (8.4/10) remains theoretically better.
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All months for Alsace
Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 32°F | 43°F | 44% | 0.1in | 4.5h | 2.6/10 |
| 🌦️ February | 36°F | 48°F | 40% | 0.1in | 7.2h | 4.2/10 |
| ⛅ March | 39°F | 54°F | 39% | 0.1in | 9.6h | 5.4/10 |
| ⛅ April | 43°F | 61°F | 38% | 0.1in | 11.8h | 7.0/10 |
| 🌤️ May | 50°F | 66°F | 44% | 0.1in | 13.0h | 7.3/10 |
| 🌤️ June | 59°F | 75°F | 46% | 0.1in | 13.8h | 7.9/10 |
| 🌤️ July | 61°F | 79°F | 38% | 0.1in | 14.0h | 8.4/10 |
| 🌤️ August | 61°F | 79°F | 36% | 0.1in | 12.7h | 8.3/10 |
| 🌤️ September | 55°F | 70°F | 37% | 0.1in | 11.0h | 7.5/10 |
| ⛅ October | 48°F | 61°F | 37% | 0.1in | 8.1h | 6.7/10 |
| 🌦️ November | 39°F | 50°F | 44% | 0.1in | 5.7h | 4.1/10 |
| 🌦️ December | 34°F | 45°F | 40% | 0.1in | 4.2h | 3.2/10 |
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, Alsace averages 70°F, 37% rainy days and 11.0h of sunshine per day. Overall weather score: 7.5/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 8.4/10). Difference:
- 🌡️ Max temperature : +5°F
- 🌧 Rainy days : +1%
- ☀️ Sunshine : +3.0h/day
FAQ
FAQ — Alsace in September
Is September a good time to visit Alsace?
September is an excellent time to visit Alsace (score 7.5/10). With 70°F, 11.0h of sunshine and 37% rain, conditions are very favourable.
What to do in Alsace in September?
With 70°F max and 11.0h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
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