Bonaire · AutumnMonth summary
Bonaire weather in September
✅ Good
🌡️ Temperature min / max
82°F – 88°F
🌧 Rainy days
31% of days
☀️ Sunshine
11.3h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.8/10
📅 📅 Best month
March (8.4/10)
Quick decision
Should you visit Bonaire in September?
✅ Good
✅ Yes if: you want shoulder-season value — fewer crowds, 31°F.
❌ No if: you need maximum sunshine — some overcast days are possible.
Our take: September is a good time to visit Bonaire. March remains slightly better (+0.6 pts).
By trip type
Bonaire in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ✅ Good
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in September
Autumn in Bonaire is often underrated: 31°F, golden light and declining crowds. An interesting window. Expect rain on 31% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if March (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 | 77°F | 82°F | 48% | 0.1in | 11.0h | 8.0/10 |
| 🌤️ February | 77°F | 82°F | 48% | 0.0in | 11.4h | 8.2/10 |
| 🌤️ March | 77°F | 82°F | 39% | 0.0in | 11.6h | 8.4/10 |
| 🌤️ April | 79°F | 84°F | 32% | 0.0in | 11.5h | 8.3/10 |
| 🌤️ May | 81°F | 86°F | 28% | 0.0in | 12.0h | 8.3/10 |
| 🌤️ June | 81°F | 86°F | 45% | 0.1in | 12.3h | 7.9/10 |
| 🌤️ July | 81°F | 86°F | 48% | 0.1in | 12.2h | 7.8/10 |
| 🌤️ August | 81°F | 86°F | 43% | 0.1in | 11.9h | 7.9/10 |
| 🌤️ September | 82°F | 88°F | 31% | 0.1in | 11.3h | 7.8/10 |
| 🌤️ October | 81°F | 86°F | 57% | 0.1in | 11.1h | 7.4/10 |
| ⛅ November | 79°F | 84°F | 72% | 0.1in | 11.0h | 7.2/10 |
| ⛅ December | 79°F | 84°F | 61% | 0.1in | 11.0h | 7.5/10 |
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, Bonaire averages 88°F, 31% rainy days and 11.3h of sunshine per day. Overall weather score: 7.8/10.
See methodology →
Comparison
September vs March (best month)
The best month is March (score 8.4/10). Difference:
- 🌡️ Max temperature : -3°F
- 🌧 Rainy days : +8%
- ☀️ Sunshine : +0.3h/day
FAQ
FAQ — Bonaire in September
Is September a good time to visit Bonaire?
September is an excellent time to visit Bonaire (score 7.8/10). With 88°F, 11.3h of sunshine and 31% rain, conditions are very favourable.
What to do in Bonaire in September?
With 88°F max and 11.3h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
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