The climate in Phnom Penh during May can be summarized as very hot, humid and wet.
May is in the spring in Phnom Penh and is typically the warmest month of the year. Daytime maximum temperatures average around a steamy 34°C (93°F), whilst at night 25°C (76°F) is normal.
|Daytime temperature||34°C 93.1°F|
|Nightly temperature||24.5°C 76°F|
|Average temperature||29.2°C 84.6°F|
|Daily sunshine||7.2 hrs|
|Avg rainfall||166 mm 6.5 ins|
|Rainy days||15 days|
|Sea temperature||30.4°C 86.7°F|
|Windspeed||5.8kph 4 mph|
On average May is the 3rd wettest month of the year in Phnom Penh with around 166mm 6.5 inches of rain making it a wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.2 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Phnom Penh in May 2023.
|Hottest month:||April||34.2°C 93.6°F|
|Driest month:||January||6mm 0.2ins|
|Coldest month:||December||29.9°C 85.8°F|
|Wettest month:||October||263mm 10.4ins|