Barcelona · AutumnMonth summary
Barcelona weather in September
✅ Good
🌡️ Temperature min / max
18°C – 25°C
🌧 Rainy days
38% of days
☀️ Sunshine
11.1h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.8/10
📅 📅 Best month
July (9.5/10)
Quick decision
Should you visit Barcelona in September?
✅ Good
✅ Yes if: you want shoulder-season value — fewer crowds, 25°C.
❌ No if: you need maximum sunshine — some overcast days are possible.
Our take: Favourable conditions in September (7.8/10). July scores higher but the gap is small.
By trip type
Barcelona in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ✅ Good
- 💰 💰 Budget : 🌿 Shoulder
Local context
What to expect in September
🎯 La Mercè (Sep 24) — patron saint festival with human towers and fire runs Autumn in Barcelona is often underrated: 25°C, golden light and declining crowds. An interesting window. Expect rain on 38% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if July (9.5/10) remains theoretically better.
Browse by month
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Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ⛅ January | 4°C | 14°C | 14% | 1.4 | 8.8h | 7.0/10 |
| ⛅ February | 6°C | 15°C | 22% | 1.3 | 9.9h | 7.0/10 |
| ⛅ March | 8°C | 16°C | 27% | 1.8 | 10.8h | 7.1/10 |
| 🌤️ April | 10°C | 18°C | 29% | 2.4 | 12.0h | 7.3/10 |
| 🌤️ May | 14°C | 21°C | 25% | 1.7 | 13.2h | 8.0/10 |
| ☀️ June | 18°C | 26°C | 19% | 1.1 | 14.0h | 9.1/10 |
| ☀️ July | 21°C | 28°C | 17% | 1.2 | 14.0h | 9.5/10 |
| ☀️ August | 22°C | 29°C | 21% | 1.5 | 12.7h | 8.8/10 |
| 🌤️ September | 18°C | 25°C | 38% | 3.3 | 11.1h | 7.8/10 |
| 🌤️ October | 15°C | 22°C | 32% | 3.4 | 9.9h | 7.5/10 |
| ⛅ November | 9°C | 17°C | 26% | 1.8 | 9.0h | 7.1/10 |
| ⛅ December | 6°C | 15°C | 17% | 1.3 | 8.5h | 7.0/10 |
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, Barcelona averages 25°C, 38% rainy days and 11.1h of sunshine per day. Overall weather score: 7.8/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 9.5/10). Difference:
- 🌡️ Max temperature : +3°C
- 🌧 Rainy days : -21%
- ☀️ Sunshine : +2.9h/day
FAQ
FAQ — Barcelona in September
Is September a good time to visit Barcelona?
September is an excellent time to visit Barcelona (score 7.8/10). With 25°C, 11.1h of sunshine and 38% rain, conditions are very favourable.
What to do in Barcelona in September?
With 25°C max and 11.1h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
Activities and tours in Barcelona
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