Phnom Penh weather in September (Phnom Penh Municipality, Cambodia)

This month is known as a warm month. The average maximum daytime temperature in Phnom Penh in September lies at 31.6°C (88.88°F). The average minimum temperature goes down to around 24.5°C (76.1°F) (often the minimum temperature is noted at night).

September is part of the rainy season with an average precipitation of 267mm (10.5 inches). This makes it the wettest month of the year. There are generally around 19 rainy days. The sun will show itself now and again, with 129 hours of sunshine during the entire month.

 

Phnom Penh, monthly averages in September

Show in Fahrenheit

Min Temperature 24 °C  

Max Temperature 31 °C  

Chance of Rain 64%  

Precipitation 267mm  

Rainy days 19 days  

Humidity 84% *  

Sunshine 129 hrs *  

Where to stay in Phnom Penh

Where to go in Cambodia in September

Find out more about the weather in Cambodia in September and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

So what to wear in September? Visitors traveling to Phnom Penh should plan on bringing a totally waterproof coat since it will often be raining. However, also bring your summer cloths because it can be very warm or even hot.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Phnom Penh.

Our site offers climate and forecast data for almost all countries in the world. Are you going to Cambodia? On this website you can find historical weather averages for many cities in Cambodia. Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.