Avg weather in August
12 Hrs per day
40 mm per month
79 % avg
5 Mph avg


What’s the weather like in Cambodia in August?

Cambodia is influenced by dry and rainy seasons, with the northeast monsoon bringing wet weather from December to April, and the southwest monsoon from May to November. Cambodia is wet in August, especially in southern coastal regions. Showers are usually short and sharp though, making way for plenty of sunshine and warm temperatures. In rural areas where roads are less developed, the monsoon season in August can cause travel disruption depending on where you’re going.


On average, temperatures in Cambodia hover around 27°C in August. In Phnom Penh, the month usually brings very hot days with highs of 32°C, while lows are still a hot 26°C even after dark. Despite the high temperatures, Phnom Penh has rain on three quarters of the days in August and an average of 150mm of rain across the month, so be prepared and bring a light rain jacket. In Siem Reap, there are average highs of 32°C and lows of 24°C at this time of year.

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