Bonaire · AutumnMonth summary
Bonaire weather in September
✅ Good
🌡️ Temperature min / max
28°C – 31°C
🌧 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°C.
❌ 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
🎯 Peak season — book ahead for best rates. Accommodation prices at their highest Autumn in Bonaire is often underrated: 31°C, 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.
Browse by month
All months for Bonaire
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 25°C | 28°C | 48% | 1.5 | 11.0h | 8.0/10 |
| 🌤️ February | 25°C | 28°C | 48% | 1.2 | 11.4h | 8.2/10 |
| 🌤️ March | 25°C | 28°C | 39% | 1.0 | 11.6h | 8.4/10 |
| 🌤️ April | 26°C | 29°C | 32% | 1.0 | 11.5h | 8.3/10 |
| 🌤️ May | 27°C | 30°C | 28% | 0.9 | 12.0h | 8.3/10 |
| 🌤️ June | 27°C | 30°C | 45% | 1.6 | 12.3h | 7.9/10 |
| 🌤️ July | 27°C | 30°C | 48% | 1.5 | 12.2h | 7.8/10 |
| 🌤️ August | 27°C | 30°C | 43% | 1.6 | 11.9h | 7.9/10 |
| 🌤️ September | 28°C | 31°C | 31% | 1.7 | 11.3h | 7.8/10 |
| 🌤️ October | 27°C | 30°C | 57% | 2.4 | 11.1h | 7.4/10 |
| ⛅ November | 26°C | 29°C | 72% | 3.8 | 11.0h | 7.2/10 |
| ⛅ December | 26°C | 29°C | 61% | 2.1 | 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 31°C, 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°C
- 🌧 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 31°C, 11.3h of sunshine and 31% rain, conditions are very favourable.
What to do in Bonaire in September?
With 31°C max and 11.3h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
Activities and tours in Bonaire
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