Manaus · AutumnMonth summary
Manaus weather in September
✅ Good
🌡️ Temperature min / max
25°C – 32°C
🌧 Rainy days
41% of days
☀️ Sunshine
11.9h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.5/10
📅 📅 Best month
July (7.8/10)
Quick decision
Should you visit Manaus in September?
✅ Good
✅ Yes if: you want shoulder-season value — fewer crowds, 32°C.
❌ No if: you need maximum sunshine — some overcast days are possible.
Our take: Favourable conditions in September (7.5/10). July scores higher but the gap is small.
By trip type
Manaus 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
🎯 Good period — 33°C with good sunshine. Reasonable crowds Autumn in Manaus is often underrated: 32°C, golden light and declining crowds. An interesting window. Expect rain on 41% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if July (7.8/10) remains theoretically better.
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All months for Manaus
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ⛅ January | 24°C | 29°C | 76% | 6.7 | 10.3h | 7.1/10 |
| 🌧️ February | 24°C | 29°C | 81% | 8.6 | 9.7h | 7.0/10 |
| 🌧️ March | 24°C | 30°C | 83% | 8.8 | 9.6h | 7.0/10 |
| 🌦️ April | 24°C | 29°C | 88% | 7.8 | 10.0h | 7.0/10 |
| ⛅ May | 24°C | 29°C | 81% | 6.5 | 10.8h | 7.1/10 |
| ⛅ June | 24°C | 30°C | 62% | 4.1 | 11.8h | 7.3/10 |
| 🌤️ July | 24°C | 31°C | 36% | 1.6 | 11.8h | 7.8/10 |
| 🌤️ August | 25°C | 32°C | 31% | 1.6 | 11.8h | 7.7/10 |
| 🌤️ September | 25°C | 32°C | 41% | 2.4 | 11.9h | 7.5/10 |
| 🌤️ October | 26°C | 32°C | 45% | 3.1 | 11.3h | 7.4/10 |
| ⛅ November | 25°C | 31°C | 64% | 4.9 | 10.5h | 7.1/10 |
| ⛅ December | 24°C | 29°C | 84% | 8.7 | 10.0h | 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, Manaus averages 32°C, 41% rainy days and 11.9h of sunshine per day. Overall weather score: 7.5/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 7.8/10). Difference:
- 🌡️ Max temperature : -1°C
- 🌧 Rainy days : -5%
- ☀️ Sunshine : -0.1h/day
FAQ
FAQ — Manaus in September
Is September a good time to visit Manaus?
September is an excellent time to visit Manaus (score 7.5/10). With 32°C, 11.9h of sunshine and 41% rain, conditions are very favourable.
What to do in Manaus in September?
With 32°C max and 11.9h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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