Cambodia · AutumnMonth summary
Cambodia weather in September
⚠️ Fair
🌡️ Temperature min / max
24°C – 31°C
🌧 Rainy days
96% of days
☀️ Sunshine
8.2h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
4.9/10
📅 📅 Best month
December (8.2/10)
Quick decision
Should you visit Cambodia in September?
⚠️ Fair
✅ 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: Cambodia in September: 96% rain, 8.2h of sunshine. Better to wait for December.
By trip type
Cambodia in September by trip type
- 🏙️ 🏙️ City break / culture : ⚠️ Possible
- 🚶 🚶 Outdoor activities : ❌ Not recommended
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in September
🎯 Harvest season — fresh local produce at markets and restaurants Autumn marks the end of peak season in Cambodia. Temperatures drop (31°C) and rain returns (96% of days). With 96% of rainy days, always have indoor alternatives planned.
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Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ☀️ January | 23°C | 32°C | 8% | 0.5 | 10.9h | 8.1/10 |
| ☀️ February | 24°C | 34°C | 9% | 0.7 | 11.1h | 7.5/10 |
| ☀️ March | 26°C | 35°C | 19% | 1.6 | 11.6h | 7.2/10 |
| 🌤️ April | 26°C | 35°C | 43% | 3.6 | 11.7h | 7.0/10 |
| ⛅ May | 26°C | 34°C | 80% | 6.3 | 10.3h | 4.7/10 |
| ⛅ June | 26°C | 33°C | 76% | 6.5 | 10.2h | 5.8/10 |
| 🌧️ July | 25°C | 32°C | 87% | 8.9 | 8.9h | 5.5/10 |
| 🌧️ August | 25°C | 32°C | 89% | 9.1 | 9.8h | 5.7/10 |
| 🌧️ September | 24°C | 31°C | 96% | 13.1 | 8.2h | 4.9/10 |
| 🌧️ October | 24°C | 31°C | 80% | 9.3 | 9.6h | 7.0/10 |
| 🌤️ November | 24°C | 31°C | 45% | 4.5 | 10.9h | 7.4/10 |
| ☀️ December | 23°C | 31°C | 14% | 1.1 | 10.6h | 8.2/10 |
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, Cambodia averages 31°C, 96% rainy days and 8.2h of sunshine per day. Overall weather score: 4.9/10.
See methodology →
Comparison
September vs December (best month)
The best month is December (score 8.2/10). Difference:
- 🌡️ Max temperature : +0°C
- 🌧 Rainy days : -82%
- ☀️ Sunshine : +2.4h/day
FAQ
FAQ — Cambodia in September
Is September a good time to visit Cambodia?
September is not recommended for Cambodia (score 4.9/10). With 96% rainy days and 8.2h of sunshine, consider December (8.2/10) instead.
Does it rain a lot in Cambodia in September?
Yes, 96% of days see rain in September. Plan some indoor activities as backup.
Accommodation
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Activities & tours
Activities and tours in Cambodia
Guided tours, skip-the-line tickets and local experiences.
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Flights
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