KH Cambodia · Autumn

Cambodia in September
what's the weather like?

Tough conditions in September. Consider December if possible.

Open-Meteo · 10 years · 12 months compared · 12.57°N 104.99°E
88°FMax temperature
96%Rainy days
8.2hSunshine / day

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)

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.

🌧 Rain : ██████████ 96%
🌡 Temperature : ████████░░ 88°F
☀️ Sunshine : ██████░░░░ 8.2h/d

Our take: September brings a challenging climate (4.9/10). December offers milder conditions if your dates are flexible.

Cambodia in September by trip type

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.

All months for Cambodia

Month-by-month comparison

MonthMin °FMax °FRain %Precip inSun h/dScore
☀️ January73°F90°F8%0.0in10.9h8.1/10
☀️ February75°F93°F9%0.0in11.1h7.5/10
☀️ March79°F95°F19%0.1in11.6h7.2/10
🌤️ April79°F95°F43%0.1in11.7h7.0/10
⛅ May79°F93°F80%0.2in10.3h4.7/10
⛅ June79°F91°F76%0.3in10.2h5.8/10
🌧️ July77°F90°F87%0.4in8.9h5.5/10
🌧️ August77°F90°F89%0.4in9.8h5.7/10
🌧️ September75°F88°F96%0.5in8.2h4.9/10
🌧️ October75°F88°F80%0.4in9.6h7.0/10
🌤️ November75°F88°F45%0.2in10.9h7.4/10
☀️ December73°F88°F14%0.0in10.6h8.2/10
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 →

September vs December (best month)

The best month is December (score 8.2/10). Difference:

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.

Find a place to stay in Cambodia

Find places to stay in Cambodia in September Search on Hotels.com

Activities and tours in Cambodia

Guided tours, skip-the-line tickets and local experiences. Browse activities on GetYourGuide

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