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Hourly Forecast
Daylight Hours
05:58
Sunrise
17:58
Sunset
Moon
Waxing Gibbous
14:14
Moonrise
01:59
Moonset
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View stargazing scoreWeather in Sihanoukville today, September 21, 2026
Sihanoukville looks damp on September 21, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. The morning carries the wetter risk, with rain chances near 70% and the highest odds around 05:00. Cloud is also thick early on, peaking near 98% around 01:00.
Temperatures climb from an overnight low near 27°C toward a daytime high of about 29°C. Expect humidity between 75% and 85%, most humid near 04:00. Winds stay light, near 6.5 km/h by 13:00, so the day feels still more than breezy.
Expect the wet theme to continue later, as rain odds reach 72% near 23:00. Cloud amounts hold near 99% around 22:00. Visibility stays generally good near 11.3 km on average, though it can drop toward 4.8 km in thicker cloud or showers. The sun rises at 05:58 and sets at 17:58, for a total of 11 hours 59 minutes of sunlight today.
Taken together, Sihanoukville looks wet enough on September 21, 2026 that flexible outdoor plans work best, with temperatures peaking near 29°C.
Frequently asked questions about weather in Sihanoukville
How warm does it get in Sihanoukville?
The warmest month in Sihanoukville is April, with average high temperatures of 30°C. The average temperature during this period is around 29°C.
How cold does it get in Sihanoukville?
The coldest month in Sihanoukville is January, with average low temperatures of 26°C. The average temperature during this period is around 27°C.
What is the wettest time of year in Sihanoukville?
The wettest month in Sihanoukville is July, with an average of 590mm of precipitation.
What is the driest time of year in Sihanoukville?
The driest month in Sihanoukville is February, with an average of 39mm of precipitation.
