São Paulo · AutumnMonth summary
São Paulo weather in September
✅ Good
🌡️ Temperature min / max
59°F – 79°F
🌧 Rainy days
23% of days
☀️ Sunshine
10.9h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
8.4/10
📅 📅 Best month
September (8.4/10)
Quick decision
Should you visit São Paulo 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: São Paulo in September: 79°F and 10.9h of sunshine. Decent, but not the peak.
By trip type
São Paulo 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 São Paulo is often underrated: 26°F, golden light and declining crowds. An interesting window. Rain risk remains low (23% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if September (8.4/10) remains theoretically better.
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Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ⛅ January | 66°F | 81°F | 78% | 0.3in | 10.7h | 7.1/10 |
| ⛅ February | 64°F | 81°F | 67% | 0.2in | 10.9h | 7.3/10 |
| 🌤️ March | 64°F | 81°F | 59% | 0.2in | 10.7h | 7.4/10 |
| 🌤️ April | 61°F | 77°F | 35% | 0.1in | 10.4h | 7.9/10 |
| 🌤️ May | 57°F | 73°F | 23% | 0.1in | 9.4h | 7.9/10 |
| 🌤️ June | 55°F | 72°F | 23% | 0.1in | 9.5h | 7.8/10 |
| 🌤️ July | 54°F | 73°F | 8% | 0.0in | 10.1h | 8.3/10 |
| 🌤️ August | 55°F | 73°F | 19% | 0.1in | 10.0h | 8.0/10 |
| ☀️ September | 59°F | 79°F | 23% | 0.1in | 10.9h | 8.4/10 |
| 🌤️ October | 61°F | 77°F | 52% | 0.2in | 9.2h | 7.3/10 |
| 🌤️ November | 61°F | 77°F | 54% | 0.2in | 10.8h | 7.4/10 |
| ⛅ December | 64°F | 81°F | 66% | 0.2in | 11.0h | 7.3/10 |
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, São Paulo averages 79°F, 23% rainy days and 10.9h of sunshine per day. Overall weather score: 8.4/10.
See methodology →
Comparison
September vs September (best month)
The best month is September (score 8.4/10). Difference:
- 🌡️ Max temperature : +0°F
- 🌧 Rainy days : +0%
- ☀️ Sunshine : +0.0h/day
FAQ
FAQ — São Paulo in September
Is September a good time to visit São Paulo?
September is an excellent time to visit São Paulo (score 8.4/10). With 79°F, 10.9h of sunshine and 23% rain, conditions are very favourable.
What to do in São Paulo in September?
With 79°F and 10.9h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
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Activities & tours
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