Matsuyama · AutumnMonth summary
Matsuyama weather in September
✅ Good
🌡️ Temperature min / max
22°C – 27°C
🌧 Rainy days
43% of days
☀️ Sunshine
8.6h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
8.3/10
📅 📅 Best month
September (8.3/10)
Quick decision
Should you visit Matsuyama in September?
✅ Good
✅ Yes if: you want good weather with lower prices than peak season.
❌ No if: you need guaranteed perfect weather — some mixed days are possible.
Our take: Matsuyama in September: 27°C and 8.6h of sunshine. Decent, but not the peak.
By trip type
Matsuyama in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ✅ Good
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
Autumn in Matsuyama is often underrated: 27°C, golden light and declining crowds. An interesting window. Expect rain on 43% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if September (8.3/10) remains theoretically better.
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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 | 10°C | 28% | 71.1 | 7.4h | 7.0/10 |
| 🌫️ February | 3°C | 10°C | 31% | 70.9 | 8.7h | 7.0/10 |
| ⛅ March | 6°C | 14°C | 35% | 114.6 | 8.4h | 7.0/10 |
| 🌤️ April | 11°C | 18°C | 33% | 147.2 | 9.0h | 7.4/10 |
| 🌤️ May | 15°C | 22°C | 32% | 149.2 | 9.1h | 8.1/10 |
| 🌤️ June | 19°C | 25°C | 49% | 244.8 | 8.3h | 7.9/10 |
| 🌤️ July | 24°C | 29°C | 51% | 250.8 | 9.0h | 8.0/10 |
| 🌤️ August | 25°C | 30°C | 43% | 176.4 | 10.0h | 8.0/10 |
| 🌤️ September | 22°C | 27°C | 43% | 188.1 | 8.6h | 8.3/10 |
| 🌤️ October | 16°C | 22°C | 28% | 113.7 | 8.2h | 8.2/10 |
| 🌤️ November | 11°C | 18°C | 29% | 87.4 | 8.0h | 7.5/10 |
| ⛅ December | 6°C | 12°C | 33% | 81.9 | 7.3h | 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, Matsuyama averages 27°C, 43% rainy days and 8.6h of sunshine per day. Overall weather score: 8.3/10.
See methodology →
Comparison
September vs September (best month)
The best month is September (score 8.3/10). Difference:
- 🌡️ Max temperature : +0°C
- 🌧 Rainy days : +0%
- ☀️ Sunshine : +0.0h/day
FAQ
FAQ — Matsuyama in September
Is September a good time to visit Matsuyama?
September is an excellent time to visit Matsuyama (score 8.3/10). With 27°C, 8.6h of sunshine and 43% rain, conditions are very favourable.
What to do in Matsuyama in September?
With 27°C and 8.6h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
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