New Caledonia · AutumnMonth summary
New Caledonia weather in September
✅ Good
🌡️ Temperature min / max
18°C – 24°C
🌧 Rainy days
33% of days
☀️ Sunshine
11.6h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
8.0/10
📅 📅 Best month
November (8.1/10)
Quick decision
Should you visit New Caledonia in September?
✅ Good
✅ Yes if: you want good weather with lower prices than peak season.
❌ No if: you need guaranteed perfect weather — some mixed days are possible.
Our take: New Caledonia in September: 24°C and 11.6h of sunshine. Decent, but not the peak.
By trip type
New Caledonia in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
🎯 Peak cultural season — museums and sites accessible in good weather conditions Autumn in New Caledonia is often underrated: 24°C, golden light and declining crowds. An interesting window. Expect rain on 33% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if November (8.1/10) remains theoretically better.
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All months for New Caledonia
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 23°C | 29°C | 55% | 7.1 | 12.3h | 7.6/10 |
| ⛅ February | 24°C | 29°C | 70% | 12.7 | 11.6h | 7.2/10 |
| ⛅ March | 23°C | 28°C | 65% | 7.4 | 11.6h | 7.5/10 |
| ⛅ April | 22°C | 26°C | 63% | 9.3 | 10.9h | 7.3/10 |
| 🌤️ May | 20°C | 25°C | 47% | 3.3 | 10.1h | 7.5/10 |
| 🌤️ June | 19°C | 24°C | 41% | 2.6 | 9.8h | 7.6/10 |
| 🌤️ July | 18°C | 23°C | 34% | 3.0 | 10.0h | 7.6/10 |
| 🌤️ August | 17°C | 22°C | 36% | 3.2 | 10.5h | 7.5/10 |
| 🌤️ September | 18°C | 24°C | 33% | 2.3 | 11.6h | 8.0/10 |
| 🌤️ October | 19°C | 26°C | 44% | 3.7 | 11.9h | 7.9/10 |
| 🌤️ November | 21°C | 27°C | 43% | 3.2 | 12.8h | 8.1/10 |
| 🌤️ December | 22°C | 28°C | 50% | 6.3 | 12.7h | 7.9/10 |
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, New Caledonia averages 24°C, 33% rainy days and 11.6h of sunshine per day. Overall weather score: 8.0/10.
See methodology →
Comparison
September vs November (best month)
The best month is November (score 8.1/10). Difference:
- 🌡️ Max temperature : +3°C
- 🌧 Rainy days : +10%
- ☀️ Sunshine : +1.2h/day
FAQ
FAQ — New Caledonia in September
Is September a good time to visit New Caledonia?
September is an excellent time to visit New Caledonia (score 8.0/10). With 24°C, 11.6h of sunshine and 33% rain, conditions are very favourable.
What to do in New Caledonia in September?
With 24°C and 11.6h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
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Activities & tours
Activities and tours in New Caledonia
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