Cambodia · AutumnMonth summary
Cambodia weather in September
⚠️ Fair
🌡️ Temperature min / max
75°F – 88°F
🌧 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: September brings a challenging climate (4.9/10). December offers milder conditions if your dates are flexible.
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
Autumn marks the end of peak season in Cambodia. Temperatures drop (31°F) 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 °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ☀️ January | 73°F | 90°F | 8% | 0.0in | 10.9h | 8.1/10 |
| ☀️ February | 75°F | 93°F | 9% | 0.0in | 11.1h | 7.5/10 |
| ☀️ March | 79°F | 95°F | 19% | 0.1in | 11.6h | 7.2/10 |
| 🌤️ April | 79°F | 95°F | 43% | 0.1in | 11.7h | 7.0/10 |
| ⛅ May | 79°F | 93°F | 80% | 0.2in | 10.3h | 4.7/10 |
| ⛅ June | 79°F | 91°F | 76% | 0.3in | 10.2h | 5.8/10 |
| 🌧️ July | 77°F | 90°F | 87% | 0.4in | 8.9h | 5.5/10 |
| 🌧️ August | 77°F | 90°F | 89% | 0.4in | 9.8h | 5.7/10 |
| 🌧️ September | 75°F | 88°F | 96% | 0.5in | 8.2h | 4.9/10 |
| 🌧️ October | 75°F | 88°F | 80% | 0.4in | 9.6h | 7.0/10 |
| 🌤️ November | 75°F | 88°F | 45% | 0.2in | 10.9h | 7.4/10 |
| ☀️ December | 73°F | 88°F | 14% | 0.0in | 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 88°F, 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°F
- 🌧 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
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Flights
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