Papua New Guinea · AutumnMonth summary
Papua New Guinea weather in September
❌ Poor
🌡️ Temperature min / max
7°C – 14°C
🌧 Rainy days
87% of days
☀️ Sunshine
7.9h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
5.5/10
📅 📅 Best month
July (5.8/10)
Quick decision
Should you visit Papua New Guinea in September?
❌ Poor
✅ Yes if: you prefer off-season travel with reduced prices and very few tourists.
❌ No if: you want to avoid rain — more than half the days are rainy.
Our take: Not the best window: 87% rain risk and 7.9h of sunshine. July is much safer.
By trip type
Papua New Guinea in September by trip type
- 🏙️ 🏙️ City break / culture : ⚠️ Possible
- 🚶 🚶 Outdoor activities : ❌ Not recommended
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : 🌿 Shoulder
Local context
What to expect in September
🎯 Diving still possible despite rain — underwater visibility stays decent at depth Autumn marks the end of peak season in Papua New Guinea. Temperatures drop (14°C) and rain returns (87% of days). With 87% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. July (5.8/10) is significantly better if possible.
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Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌧️ January | 8°C | 15°C | 92% | 12.8 | 7.0h | 5.3/10 |
| 🌧️ February | 8°C | 15°C | 95% | 13.4 | 6.9h | 5.1/10 |
| 🌧️ March | 8°C | 15°C | 96% | 14.9 | 7.0h | 5.1/10 |
| 🌧️ April | 8°C | 14°C | 94% | 14.4 | 6.7h | 4.7/10 |
| 🌧️ May | 8°C | 14°C | 89% | 11.5 | 8.1h | 5.5/10 |
| 🌧️ June | 8°C | 14°C | 89% | 9.4 | 8.2h | 5.7/10 |
| 🌧️ July | 7°C | 14°C | 85% | 10.0 | 7.8h | 5.8/10 |
| 🌧️ August | 7°C | 14°C | 88% | 9.2 | 8.0h | 5.7/10 |
| 🌧️ September | 7°C | 14°C | 87% | 13.0 | 7.9h | 5.5/10 |
| 🌧️ October | 7°C | 14°C | 92% | 12.8 | 8.0h | 5.2/10 |
| 🌧️ November | 8°C | 15°C | 91% | 11.3 | 7.8h | 5.8/10 |
| 🌧️ December | 8°C | 15°C | 94% | 14.7 | 7.2h | 5.1/10 |
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, Papua New Guinea averages 14°C, 87% rainy days and 7.9h of sunshine per day. Overall weather score: 5.5/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 5.8/10). Difference:
- 🌡️ Max temperature : +0°C
- 🌧 Rainy days : -2%
- ☀️ Sunshine : -0.1h/day
FAQ
FAQ — Papua New Guinea in September
Is September a good time to visit Papua New Guinea?
September is an acceptable time for Papua New Guinea (score 5.5/10). Conditions are decent but not optimal — consider July (5.8/10) if possible.
Does it rain a lot in Papua New Guinea in September?
Yes, 87% of days see rain in September. Plan some indoor activities as backup.
Accommodation
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