SeasonScore
Phnom Penh, Cambodia
Photo: Gustavo Jeronimo · CC BY 2.0

Cambodia

Phnom Penh in October

🌧️ Rainy season

Warm, humid and very wet.

🎒 Pack: light, breathable clothes & sunscreen · compact umbrella or rain jacket · quick-dry fabrics

Best months: Jan (8.7), Dec (8.6), Feb (8.2)

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Why October scores 7.2What goes into the score

How it works
🌡️ 31° / 24°C🌧️ 248 mm💧 dew pt 25°🍃 PM2.5 16
  • Weather comfort5.9
    • ✓Warm (31°C highs / 24°C lows)
    • !Very humid/sticky (dew point 24.5°C)
    • !Wet: ~248 mm rain, ~8 heavy-rain days
  • Air quality8.2
    • ✓Moderate (PM2.5 ~16 µg/m³)
  • Seasonal hazards9.5
    • !Flood: ~8 heavy-rain days in an average October
  • Safety baseline7.0
    • ·Increased caution
Compare monthsPut October side by side with another month
OctJan
Score7.2 Good8.7 Excellent
Season🌧️ Rainy season☀️ Dry season
High / low31° / 24°32° / 22°
Rain248 mm12 mm
Humiditydew pt 25°dew pt 19°
PM2.516 µg/m³13 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Phnom Penh weather-station normals. Rainfall: Phnom Penh weather-station normals (national met service).

Holidays & crowdsOctober 2027

Holiday week

A long local holiday falls this month. Expect crowds at sights, fuller trains and flights, and higher hotel prices on those dates. Book ahead.

  • Pchum Ben Day 29 Sep – 3 Oct · 5 days off in a row
  • HM King Norodom Sihanouk Mourning Day 15–17 Oct · 3 days off in a row
  • HM King Norodom Sihamoni's Coronation Day 29–31 Oct · 3 days off in a row

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore Phnom PenhEvents, sights, food & souvenirs

Check event dates locally

Cambodia's capital at the meeting of the Mekong and Tonlé Sap rivers, with royal and Buddhist landmarks, busy markets and sobering Khmer Rouge history sites.

Events in October
Pchum BenDate variesKhmer lunar calendar — usually September or October

A 15-day festival honouring ancestors with offerings at pagodas.

Why go: The last three days are public holidays and the city empties.

Where: Pagodas nationwide

Water Festival (Bon Om Touk)Date variesLunar calendar — usually late October or November

Dragon boat races and illuminated floats marking the reversal of the Tonlé Sap's flow.

Why go: The riverside is extremely crowded.

Where: Sisowath Quay and the Tonlé Sap river

Coming up later

Independence DayEvery year9 November every year

Marks independence from France in 1953.

Why go: Public holiday with official ceremonies.

Where: Independence Monument

Khmer New YearDate variesUsually 13 or 14 to 16 April

Three days of New Year celebrations with temple visits and games.

Why go: Many residents leave the city and businesses close.

Where: Nationwide

Plan this tripTickets, data and transfers for Phnom Penh

Airport transfer Kiwitaxi

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