Phnom Penh Weather in October 2026: what to expect (4.5/10)

The month in detail

What to expect in October

October falls in the wet season in Phnom Penh. Showers are often brief but intense. With 82.0% of rainy days, always have indoor alternatives planned.

October ranks 6 out of 12 months in Phnom Penh. Compared to September: 11 pts fewer rainy days, +2.2h of sun per day.

This month's conditions

What it's like in October

UV index

8 · high

sunscreen and hat advised

Feels like

very humid

24°

Daylight

11.7h of daylight

Air quality

good

AQI 35

Compare

Is October the right month?

The best month in Phnom Penh is January (5.7/10), 1.2 pt higher than October.

See January →See all 12 months →

Context

Our verdict

Phnom Penh, Cambodian capital, holds the painful memory of the Khmer Rouge (1975-1979) who killed 1.7 million people. January-February are my favourite months (6.9/10): 23-33°C, 11-12% rain, dry season, acceptable humidity.

Read Gilles' full review →

Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

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Stay

Hotels & rentals · Phnom Penh

Expedia →

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Activities

Tours, tickets, experiences

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Flights

Multi-airline comparator

Kiwi →

🎟️ Activities & tours · Phnom Penh

GetYourGuide selection · free cancellation

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Affiliate link · GetYourGuide

Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.

Country · Cambodia

🗣️LanguageKhmer

💶CurrencyRiel cambodgien (៛)

🚗DrivingRight-hand

🛡️Safety ⓘSafe · 2/5

💰Cost of living ⓘCheap · 2/5

🌡️ Climate

🌍Climate typeTropical

📈Climate trend ⓘStable

🔥Hottest monthApril · 35°C

❄️Coolest monthNovember · 30°C

🌧️Rainiest month ⓘSeptember · 93%

🏝️ Tropical stay

🌞Dry season ⓘMay → Sep

🌧️Wet season ⓘDec → Mar

🌀Cyclones ⓘSeason Nov-Apr

Explore

Other destinations in October

If October doesn't convince you for this destination, compare with others.

Similar climate

CambodiaCambodia

Ho Chi Minh CityVietnam

San SalvadorEl Salvador

Siem ReapCambodia

BattambangCambodia

Nearby

Phu QuocVietnam181 km

BattambangCambodia253 km

Koh ChangThailand288 km

Mui NeVietnam374 km

Other top picks

Cape VerdeCape Verde5.9

SalCape Verde6.1

Marsa AlamEgypt6.5

DurbanSouth Africa7.7

LimaPeru7.7

← September November →

🗺️ See all 754 destinations on the map

Location

Where is Phnom Penh ?

Global position + regional geographic context.

🌍 World

🔍 Geographic context

Cambodia

Tropical climate with a 5.7 → 4.3 gap between best and worst month. 10 years of ERA5 data to choose by project.

11.56°N · 104.92°E

Questions

Frequently asked questions

What is the best time to visit Phnom Penh?

January is the best month with 32.0°C highs, 23.0°C lows, 8.4h of sunshine and 12.0% rainy days.

How many hours of sunshine does Phnom Penh get in January?

Phnom Penh averages 8.4 sunshine hours per day in January. It is the sunniest month with a climate score of 5.5/10.

What is the rainiest month in Phnom Penh?

May is the most unfavourable month with May has the lowest climate score of the year and the lowest climate score of the year.

What are the temperatures at night in Phnom Penh in January?

In January, overnight lows reach 23.0°C, while afternoon highs average 32.0°C.

Is Phnom Penh good in winter?

In winter (December-February), Phnom Penh scores 5.4/10 on average — Difficult period — prefer the peak season.. The best month overall remains January with a score of 5.5/10.

When should you avoid Phnom Penh?

May is the most difficult month to visit Phnom Penh, with May has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.

Do you need sun protection in Phnom Penh in October?

The average UV index reaches 8 in October in Phnom Penh (high), with about 11.7h of daylight. Sunscreen and hat advised.