Raja Ampat · AutumnMonth summary
Raja Ampat weather in September
✅ Good
🌡️ Temperature min / max
23°C – 29°C
🌧 Rainy days
90% of days
☀️ Sunshine
11.0h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.0/10
📅 📅 Best month
February (7.1/10)
Quick decision
Should you visit Raja Ampat 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: Favourable conditions in September (7.0/10). February scores higher but the gap is small.
By trip type
Raja Ampat 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
🎯 Diving still possible despite rain — underwater visibility stays decent at depth Autumn in Raja Ampat is often underrated: 29°C, golden light and declining crowds. An interesting window. With 90% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. February (7.1/10) is significantly better if possible.
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All months for Raja Ampat
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌧️ January | 23°C | 29°C | 85% | 11.1 | 9.5h | 7.0/10 |
| ⛅ February | 23°C | 29°C | 82% | 8.5 | 10.4h | 7.1/10 |
| 🌦️ March | 23°C | 29°C | 87% | 10.6 | 10.2h | 7.0/10 |
| 🌦️ April | 23°C | 29°C | 92% | 13.6 | 10.5h | 7.0/10 |
| 🌦️ May | 24°C | 29°C | 95% | 14.0 | 11.0h | 7.0/10 |
| 🌦️ June | 23°C | 28°C | 94% | 15.3 | 10.4h | 7.0/10 |
| 🌧️ July | 23°C | 28°C | 90% | 13.5 | 9.9h | 7.0/10 |
| 🌦️ August | 23°C | 28°C | 85% | 11.0 | 10.5h | 7.1/10 |
| 🌦️ September | 23°C | 29°C | 90% | 12.4 | 11.0h | 7.0/10 |
| 🌦️ October | 23°C | 29°C | 88% | 11.7 | 11.3h | 7.0/10 |
| 🌦️ November | 23°C | 29°C | 94% | 11.2 | 11.2h | 7.0/10 |
| 🌦️ December | 23°C | 29°C | 94% | 11.4 | 10.3h | 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, Raja Ampat averages 29°C, 90% rainy days and 11.0h of sunshine per day. Overall weather score: 7.0/10.
See methodology →
Comparison
September vs February (best month)
The best month is February (score 7.1/10). Difference:
- 🌡️ Max temperature : +0°C
- 🌧 Rainy days : -8%
- ☀️ Sunshine : -0.6h/day
FAQ
FAQ — Raja Ampat in September
Is September a good time to visit Raja Ampat?
September is an acceptable time for Raja Ampat (score 7.0/10). Conditions are decent but not optimal — consider February (7.1/10) if possible.
Does it rain a lot in Raja Ampat in September?
Yes, 90% of days see rain in September. Plan some indoor activities as backup.
Accommodation
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