São Miguel · AutumnMonth summary
São Miguel weather in September
✅ Good
🌡️ Temperature min / max
19°C – 23°C
🌧 Rainy days
53% of days
☀️ Sunshine
11.3h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.4/10
📅 📅 Best month
July (7.9/10)
Quick decision
Should you visit São Miguel in September?
✅ Good
✅ Yes if: you're willing to accept showers in exchange for lower prices and fewer tourists.
❌ No if: you're planning 100% outdoor activities — rain is frequent.
Our take: São Miguel in September: 23°C and 11.3h of sunshine. Decent, but not the peak.
By trip type
São Miguel in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
🎯 Trails walkable but wet — bring proper footwear and plan sheltered breaks Autumn in São Miguel is often underrated: 23°C, golden light and declining crowds. An interesting window. With 53% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. July (7.9/10) is significantly better if possible.
Browse by month
All months for São Miguel
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 13°C | 16°C | 56% | 4.6 | 8.3h | 5.0/10 |
| 🌦️ February | 12°C | 16°C | 52% | 4.2 | 9.2h | 5.6/10 |
| 🌦️ March | 12°C | 16°C | 53% | 3.7 | 10.4h | 6.1/10 |
| 🌦️ April | 13°C | 17°C | 59% | 4.0 | 11.7h | 6.7/10 |
| 🌦️ May | 14°C | 18°C | 63% | 3.7 | 12.7h | 7.0/10 |
| 🌦️ June | 16°C | 20°C | 50% | 2.7 | 13.7h | 7.3/10 |
| 🌤️ July | 18°C | 23°C | 46% | 1.6 | 13.8h | 7.9/10 |
| 🌤️ August | 20°C | 24°C | 48% | 2.1 | 12.9h | 7.8/10 |
| 🌦️ September | 19°C | 23°C | 53% | 2.5 | 11.3h | 7.4/10 |
| 🌦️ October | 18°C | 21°C | 55% | 4.8 | 10.2h | 7.1/10 |
| 🌦️ November | 15°C | 19°C | 52% | 4.3 | 9.0h | 7.0/10 |
| 🌦️ December | 13°C | 17°C | 53% | 5.2 | 8.2h | 5.5/10 |
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 Miguel averages 23°C, 53% rainy days and 11.3h of sunshine per day. Overall weather score: 7.4/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 7.9/10). Difference:
- 🌡️ Max temperature : +0°C
- 🌧 Rainy days : -7%
- ☀️ Sunshine : +2.5h/day
FAQ
FAQ — São Miguel in September
Is September a good time to visit São Miguel?
September is an acceptable time for São Miguel (score 7.4/10). Conditions are decent but not optimal — consider July (7.9/10) if possible.
Does it rain a lot in São Miguel in September?
Yes, 53% of days see rain in September. Plan some indoor activities as backup.
Accommodation
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Activities & tours
Activities and tours in São Miguel
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