Osaka · AutumnMonth summary
Osaka weather in September
✅ Good
🌡️ Temperature min / max
72°F – 84°F
🌧 Rainy days
49% of days
☀️ Sunshine
10.2h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.5/10
📅 📅 Best month
May (7.6/10)
Quick decision
Should you visit Osaka in September?
✅ Good
✅ Yes if: you want shoulder-season value — fewer crowds, 29°F.
❌ No if: you need maximum sunshine — some overcast days are possible.
Our take: Osaka in September: 84°F and 10.2h of sunshine. Decent, but not the peak.
By trip type
Osaka 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 Osaka is often underrated: 29°F, golden light and declining crowds. An interesting window. With 49% of rainy days, always have indoor alternatives planned. A good balance between weather and crowds, even if May (7.6/10) remains theoretically better.
Browse by month
All months for Osaka
Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌫️ January | 34°F | 48°F | 20% | 0.1in | 8.9h | 5.5/10 |
| 🌫️ February | 34°F | 48°F | 24% | 0.1in | 9.4h | 5.4/10 |
| ⛅ March | 39°F | 55°F | 34% | 0.1in | 10.3h | 6.1/10 |
| 🌤️ April | 50°F | 66°F | 33% | 0.2in | 11.0h | 7.2/10 |
| 🌤️ May | 59°F | 73°F | 37% | 0.2in | 11.4h | 7.6/10 |
| 🌤️ June | 66°F | 81°F | 47% | 0.3in | 10.0h | 7.6/10 |
| 🌤️ July | 75°F | 88°F | 52% | 0.3in | 12.0h | 7.3/10 |
| 🌤️ August | 79°F | 91°F | 43% | 0.2in | 12.0h | 7.2/10 |
| 🌤️ September | 72°F | 84°F | 49% | 0.3in | 10.2h | 7.5/10 |
| 🌤️ October | 59°F | 73°F | 36% | 0.2in | 9.9h | 7.5/10 |
| ⛅ November | 46°F | 63°F | 24% | 0.1in | 9.3h | 7.1/10 |
| 🌫️ December | 37°F | 52°F | 21% | 0.1in | 8.9h | 6.0/10 |
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, Osaka averages 84°F, 49% rainy days and 10.2h of sunshine per day. Overall weather score: 7.5/10.
See methodology →
Comparison
September vs May (best month)
The best month is May (score 7.6/10). Difference:
- 🌡️ Max temperature : -6°F
- 🌧 Rainy days : -12%
- ☀️ Sunshine : +1.2h/day
FAQ
FAQ — Osaka in September
Is September a good time to visit Osaka?
September is an excellent time to visit Osaka (score 7.5/10). With 84°F, 10.2h of sunshine and 49% rain, conditions are very favourable.
What to do in Osaka in September?
With 84°F max and 10.2h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
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