Weather in Phnom Penh in september 2025

The weather in Phnom Penh in the month of september comes from statistical datas on the past years. You can view the weather statistics the entire month, but also by using the tabs for the beginning, the middle and the end of the month.

Average weather throughout september

bad weather UV index: 7

Weather at 6am
79°F

Moderate rain at times

23%

Clear/Sunny

16%

Cloudy

10%

Weather at 12pm
92°F

Partly Cloudy

26%

Heavy rain

16%

Cloudy

13%

Weather at 6pm
83°F

Moderate rain at times

33%

Partly Cloudy

9%

Clear/Sunny

4%

Weather at 3am
79°F

Partly Cloudy

32%

Moderate rain at times

25%

Fog

17%

Clear/Sunny

12%



Evolution of daily average temperature and precipitation in Phnom Penh in september

These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Phnom Penh in september.


The climate of Phnom Penh in september is bad

the weather in Phnom Penh in september is wet (with 13.9in of precipitation over 21 days). The weather is worst than the previous month since in august there is an average of 9.6in of precipitation over 16 days.

The climate is very hot around this city this month. Temperatures are up to 92°F. In the morning the temperature drops to 79°F. Thus, the mean temperature average on this month of september in Phnom Penh is 86°F. These temperatures are far removed from those records observed in Phnom Penh in the month of september with a maximum record of 101°F in 2013 and a minimum record of 74°F in 2019. You can expect to have about 26 days with temperatures over 86°F, or 87 of time.

In september in Phnom Penh, the days on average last 12:11. Sunrise is at 05:50 and sets at 18:01.



September: another location in Cambodia?

If you want to go to Cambodia in september, there are destinations with better weather than Phnom Penh:

In september, Kampot, Kratie, Kampong Cham, Sambor Prei Kuk, Kirirom National Park and Koh Tonsay (Rabbit Island) have a tolerable climate, but better than Phnom Penh.

more information about Cambodia's weather in september


Seasonal average climate and temperature of Phnom Penh in september

Check below seasonal norms These statistics are compiled from the weather statements of the past years of the month of september.

September
Outside temperature
Average temperature 86°F
Highest temperature 92°F
Lowest temperature 79°F
Highest record temperature 101°F
(2013)
Lowest record temperature 74°F
(2019)
Number of days at +86°F 26 day(s)
(87%)
Number of days at +65°F 30 day(s)
(100%)
Wind
Wind speed 12km/h
Wind temperature 79°F
Precipitation (rainfall)
Rainfall 13.9in
Number of days with rainfall 21 day(s)
(70%)
Record daily rainfall 3in
(2012)
Other climate data
Humidity 87%
Visibility 8.48km
Cloud cover 51%
UV index 7
Daily sunshine hours 11
Sunrise and sunset
Time of sunrise 05:50
Time of sunset 18:01
Length of day 12:11
Our opinion about the weather in september
Our opinion at whereandwhen.net bad



How was the weather last september?

Here is the day by day recorded weather in Phnom Penh in september 2024:

01-09-2024
Light rain shower
77°F to 85°F
02-09-2024
Light rain shower
76°F to 86°F
03-09-2024
Light rain shower
77°F to 86°F
04-09-2024
Thundery outbreaks in nearby
77°F to 85°F
05-09-2024
Partly Cloudy
77°F to 85°F
06-09-2024
Light rain shower
77°F to 88°F
07-09-2024
Light rain shower
77°F to 92°F
08-09-2024
Cloudy
77°F to 92°F
09-09-2024
Light drizzle
76°F to 92°F
10-09-2024
Light rain shower
77°F to 88°F
11-09-2024
Light rain shower
76°F to 81°F
12-09-2024
Patchy rain nearby
79°F to 83°F
13-09-2024
Partly Cloudy
76°F to 85°F
14-09-2024
Light rain shower
77°F to 83°F
15-09-2024
Patchy rain nearby
77°F to 90°F
16-09-2024
Patchy rain nearby
76°F to 90°F
17-09-2024
Light rain shower
77°F to 83°F
18-09-2024
Patchy rain nearby
76°F to 77°F
19-09-2024
Light drizzle
76°F to 85°F
20-09-2024
Thundery outbreaks in nearby
76°F to 90°F
21-09-2024
Light rain shower
77°F to 83°F
22-09-2024
Partly Cloudy
77°F to 81°F
23-09-2024
Light rain shower
76°F to 85°F
24-09-2024
Light rain
76°F to 88°F
25-09-2024
Patchy rain nearby
76°F to 88°F
26-09-2024
Light rain shower
76°F to 88°F
27-09-2024
Light rain shower
77°F to 88°F
28-09-2024
Patchy rain nearby
76°F to 90°F
29-09-2024
Patchy rain nearby
77°F to 92°F
30-09-2024
Partly Cloudy
79°F to 92°F

Map: other cities in Cambodia in september

Cities near Phnom Penh:

Koh Pen in septembertolerable weather
Kampong Cham in septembertolerable weather
Kirirom National Park in septembertolerable weather
Krong Kaeb in septembertolerable weather
Kampot in septembertolerable weather
Koh Tonsay (Rabbit Island) in septembertolerable weather
Sambor Prei Kuk in septembertolerable weather
Kratie in septembertolerable weather
Koh Thmei in septembervery bad weather
Tonlé Sap in septembertolerable weather
Sihanoukville in septembervery bad weather
Koh Ta Kiev in septembervery bad weather
Cambodia in september: See full list of cities

Click over cities on the map for information about the weather in september.

Legend: Phnom Penh perfect weather good tolerable bad very bad


Weather data for Phnom Penh in september:

Weather data for Phnom Penh for september are derived from an average of the weather forecast since 2009 in Phnom Penh. There is a margin of error and these forecasts are to be considered as general information only. The weather in Phnom Penh can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Phnom Penh.


Weather in august in Phnom Penh
Weather in october in Phnom Penh
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