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Hourly Forecast
Daylight Hours
05:53
Sunrise
17:52
Sunset
Moon
Waxing Gibbous
14:11
Moonrise
01:52
Moonset
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View stargazing scoreWeather in Phnom Penh International Airport today, September 21, 2026
Expect unsettled, showery conditions in Phnom Penh International Airport on September 21, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. Morning plans should assume damp conditions, as rain chances climb toward 100% around 06:00. Cloud cover is also at its densest near 06:00 at roughly 100%.
Temperatures climb from an overnight low near 25°C toward a daytime high of about 27°C. Relative humidity sits between 91% and 97%, reaching its peak around 22:00. Winds stay light, near 3.5 km/h by 10:00, so the day feels still more than breezy.
Afternoon showers stay in play, peaking near 100% around 12:00. Skies remain cluttered, with cover about 99% by 21:00. Expect visibility near 15.9 km, with poorer spells close to 12.2 km. Expect sunrise at 05:53, sunset at 17:52, and 11 hours 59 minutes of sunlight today overall.
Taken together, Phnom Penh International Airport looks wet enough on September 21, 2026 that flexible outdoor plans work best, with temperatures peaking near 27°C.
Frequently asked questions about weather in Phnom Penh International Airport
How warm does it get in Phnom Penh International Airport?
The warmest month in Phnom Penh International Airport is April, with average high temperatures of 36°C. The average temperature during this period is around 30°C.
How cold does it get in Phnom Penh International Airport?
The coldest month in Phnom Penh International Airport is January, with average low temperatures of 23°C. The average temperature during this period is around 27°C.
What is the wettest time of year in Phnom Penh International Airport?
The wettest month in Phnom Penh International Airport is September, with an average of 260mm of precipitation.
What is the driest time of year in Phnom Penh International Airport?
The driest month in Phnom Penh International Airport is February, with an average of 14mm of precipitation.
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