Geneva · AutumnMonth summary
Geneva weather in September
✅ Good
🌡️ Temperature min / max
13°C – 21°C
🌧 Rainy days
35% of days
☀️ Sunshine
11.1h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.5/10
📅 📅 Best month
July (8.6/10)
Quick decision
Should you visit Geneva 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 Geneva. July remains slightly better (+1.1 pts).
By trip type
Geneva 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
🎯 Harvest season — fresh local produce at markets and restaurants Autumn in Geneva is often underrated: 21°C, golden light and declining crowds. An interesting window. Expect rain on 35% 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 Geneva
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 0°C | 5°C | 44% | 4.0 | 6.8h | 3.0/10 |
| 🌦️ February | 1°C | 9°C | 36% | 2.7 | 8.8h | 4.6/10 |
| 🌦️ March | 2°C | 11°C | 39% | 3.0 | 10.4h | 5.2/10 |
| ⛅ April | 6°C | 15°C | 35% | 2.7 | 12.0h | 7.0/10 |
| 🌦️ May | 10°C | 19°C | 45% | 4.0 | 13.0h | 7.2/10 |
| 🌤️ June | 15°C | 24°C | 43% | 3.2 | 13.8h | 7.9/10 |
| 🌤️ July | 17°C | 26°C | 33% | 2.7 | 14.2h | 8.6/10 |
| 🌤️ August | 17°C | 27°C | 29% | 2.4 | 13.0h | 8.6/10 |
| 🌤️ September | 13°C | 21°C | 35% | 2.9 | 11.1h | 7.5/10 |
| ⛅ October | 9°C | 16°C | 36% | 3.6 | 9.3h | 7.0/10 |
| 🌦️ November | 4°C | 10°C | 47% | 4.0 | 7.1h | 4.1/10 |
| 🌦️ December | 0°C | 6°C | 42% | 4.2 | 6.6h | 3.4/10 |
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, Geneva averages 21°C, 35% rainy days and 11.1h of sunshine per day. Overall weather score: 7.5/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 8.6/10). Difference:
- 🌡️ Max temperature : +5°C
- 🌧 Rainy days : -2%
- ☀️ Sunshine : +3.1h/day
FAQ
FAQ — Geneva in September
Is September a good time to visit Geneva?
September is an excellent time to visit Geneva (score 7.5/10). With 21°C, 11.1h of sunshine and 35% rain, conditions are very favourable.
What to do in Geneva in September?
With 21°C max and 11.1h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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