September verdict

Cambodia in September

Weather score44Mixed

Mixed for holiday weather

Average highs sit around 31°C, giving warm days by monthly-average standards. Sunshine averages 5.1h per day, enough for a balanced month. Rainfall averages 363mm, so showers are a real planning factor.

Siem Reap, Cambodia, Cambodia travel weather guide
Photo by allPhoto Bangkok on Unsplash

September weather

Monthly averages

Temp

31°C

Rain

363mm

Sun

5.1h

Sea

9°C

Weather score

44

Mixed

Seasonal climate calendar

TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score

Trip feel

Warm

Average highs sit around 31°C, giving warm days by monthly-average standards.

Wet

Rainfall averages 363mm, so showers are a real planning factor.

Some sun

Sunshine averages 5.1h per day, enough for a balanced month.

Cool sea

Sea temperatures average 9°C, so the water can feel cool.

Map

Weather map

Compare Cambodia with nearby places by weather score, rain, sun, temperature, and swim conditions.

Temperature

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September31°C average high

September is on the cooler side of Cambodia's year, useful if you prefer less intense daytime heat.

Warmest monthsMarch to May

This stretch sets the upper range for average daytime heat.

September363mm average rain

September is wetter than Cambodia's yearly average, so flexible plans matter more.

Driest monthsJanuary to April and November to December

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

September5.1 hours average sun

September is one of Cambodia's cloudier months, so sunshine-led plans are less reliable.

Brightest monthsJanuary to April and December

This stretch has the strongest sunshine in the monthly averages.

Sea temperature

View on map

September9°C average sea

September is close to Cambodia's usual sea temperature, with limited seasonal change in the water.

Warmest seaAll year

Sea temperatures stay warm enough for easy swimming through the year.

Weather score

View on map

September44 weather score

September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.

Best weather monthsJanuary to February and December

These months have the strongest weather score in the monthly averages.

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