Phnom Penh in Autumn — Weather & What to Expect
Autumn in Phnom Penh (September, October, November) averages daytime highs of 30.4°C and lows of 24.4°C, with around 946.2mm of rain across the season (72 rainy days in total). It includes some of the best months of the year to visit (September, October, November).
In the northern hemisphere, autumn in Phnom Penh covers September, October, November.
Autumn in Phnom Penh month by month
| Month | High | Low | Rain | Rainy days | Rating |
|---|---|---|---|---|---|
| September | 30.8°C | 24.9°C | 338.9mm | 29 | 8/10 |
| October | 30.2°C | 24.3°C | 382.8mm | 25 | 8/10 |
| November | 30.3°C | 24.0°C | 224.5mm | 18 | 8/10 |
What to pack for Phnom Penh in autumn
- Lightweight, breathable clothing
- High SPF sunscreen
- Sunglasses
- Sun hat
- Reusable water bottle
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Frequently Asked Questions
Is autumn a good time to visit Phnom Penh?
Autumn in Phnom Penh rates around 8/10 — good time to visit. Average highs are 30.4°C with 946.2mm of rain across the season.
How hot is Phnom Penh in autumn?
Daytime highs average 30.4°C (86.7°F) across September, October, November, with nights around 24.4°C.
What months are autumn in Phnom Penh?
Phnom Penh is in the northern hemisphere, so autumn covers September, October, November.
See also: best time to visit Phnom Penh · Phnom Penh annual climate · Phnom Penh in spring · Phnom Penh in summer · Phnom Penh in winter
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Once you know what autumn in Phnom Penh looks like, find out exactly what to pack for Phnom Penh at 247PackingList. For currency, language and country facts, see the Cambodia guide at 247CountryInfo.
Autumn in Phnom Penh — what to pack
Lightweight travel clothing
Lightweight, breathable clothing and a compact travel umbrella are essential in this climate.
Check Price →Check clothing sizes in Cambodia at 247Sizing before you shop.
More autumn travel essentials
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.