Weather in Siem Reap (Angkor) in september 2025

The weather in Siem Reap in september comes from statistical datas on the last years. You can view the weather statistics for all the month, but also navigating through the tabs for the beginning, the middle and the end of the month.

Average weather throughout september

very bad weather UV index: 7

Weather at 6am
79°F

Heavy rain

29%

Partly Cloudy

19%

Clear/Sunny

9%

Weather at 12pm
90°F

Heavy rain

31%

Partly Cloudy

17%

Clear/Sunny

6%

Weather at 6pm
83°F

Moderate rain at times

35%

Partly Cloudy

9%

Clear/Sunny

5%

Weather at 3am
79°F

Moderate rain at times

49%

Heavy rain

23%

Partly Cloudy

15%

Clear/Sunny

8%



Evolution of daily average temperature and precipitation in Siem Reap (Angkor) in september

These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Siem Reap (Angkor) in september.


The climate of Siem Reap (Angkor) in september is very bad

The climate in september in Siem Reap is wet (with 22.7in of rainfall over 25 days). Unfortunately, the weather conditions is worsening than the previous month since in august there is an average of 17.5in of rainfall over 23 days.

The climate is very warm in this location this month. Temperatures are up to 90°F. The seasonal minimum is 79°F. Thus, the mean temperature average in september in Siem Reap is 85°F. Note that these seasonal averages are in contrast with those observed in Siem Reap in september with a maximum record of 97°F in 2017 and a minimum record of 74°F in 2015. You can hope to have about 25 days with temperatures above 86°F, or 83 of time.

On average, in Siem Reap, the days of september last 12:12. The sun rises at 05:54 and sunset is at 18:06.



September: another location in Cambodia?

If you want to go to Cambodia in september, there are destinations with better weather than Siem Reap (Angkor):

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

more information about Cambodia's weather in september


Seasonal average climate and temperature of Siem Reap (Angkor) in september

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

September
Outside temperature
Average temperature 85°F
Highest temperature 90°F
Lowest temperature 79°F
Highest record temperature 97°F
(2017)
Lowest record temperature 74°F
(2015)
Number of days at +86°F 25 day(s)
(83%)
Number of days at +65°F 30 day(s)
(100%)
Wind
Wind speed 10km/h
Wind temperature 79°F
Precipitation (rainfall)
Rainfall 22.7in
Number of days with rainfall 25 day(s)
(84%)
Record daily rainfall 4.5in
(2020)
Other climate data
Humidity 90%
Visibility 8.34km
Cloud cover 50%
UV index 7
Daily sunshine hours 12
Sunrise and sunset
Time of sunrise 05:54
Time of sunset 18:06
Length of day 12:12
Our opinion about the weather in september
Our opinion at whereandwhen.net very bad



How was the weather last september?

Here is the day by day recorded weather in Siem Reap (Angkor) in september 2024:

01-09-2024
Patchy rain nearby
77°F to 92°F
02-09-2024
Patchy rain nearby
77°F to 90°F
03-09-2024
Light rain shower
77°F to 86°F
04-09-2024
Light rain shower
77°F to 86°F
05-09-2024
Light rain shower
77°F to 88°F
06-09-2024
Patchy rain nearby
77°F to 88°F
07-09-2024
Light rain shower
77°F to 88°F
08-09-2024
Patchy rain nearby
77°F to 88°F
09-09-2024
Patchy rain nearby
77°F to 90°F
10-09-2024
Partly Cloudy
77°F to 92°F
11-09-2024
Patchy light rain
77°F to 90°F
12-09-2024
Partly Cloudy
77°F to 90°F
13-09-2024
Light rain shower
77°F to 88°F
14-09-2024
Partly Cloudy
77°F to 85°F
15-09-2024
Overcast
77°F to 90°F
16-09-2024
Cloudy
77°F to 92°F
17-09-2024
Patchy rain nearby
77°F to 88°F
18-09-2024
Patchy rain nearby
76°F to 79°F
19-09-2024
Partly Cloudy
76°F to 85°F
20-09-2024
Light rain shower
77°F to 86°F
21-09-2024
Light rain shower
77°F to 85°F
22-09-2024
Light rain shower
77°F to 83°F
23-09-2024
Patchy rain nearby
77°F to 86°F
24-09-2024
Patchy rain nearby
76°F to 88°F
25-09-2024
Light rain shower
76°F to 81°F
26-09-2024
Patchy rain nearby
74°F to 88°F
27-09-2024
Patchy rain nearby
77°F to 88°F
28-09-2024
Patchy rain nearby
77°F to 90°F
29-09-2024
Partly Cloudy
77°F to 94°F
30-09-2024
Patchy rain nearby
77°F to 92°F

Map: other cities in Cambodia in september

Cities near Siem Reap (Angkor):

Kbal Spean in septembervery bad weather
Beng Mealea in septembervery bad weather
Tonlé Sap in septembertolerable weather
Battambang in septemberbad weather
Kulen Prum Tep in septembervery bad weather
Preah Vihear in septembervery bad weather
Sambor Prei Kuk in septembertolerable weather
Poipet in septemberbad weather
Phnum Samkoh Reserve in septembertolerable weather
Kirirom National Park in septembertolerable weather
Stoeng Treng in septemberbad weather
Phnom Penh in septemberbad weather
Cambodia in september: See full list of cities

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

Legend: Siem Reap (Angkor) perfect weather good tolerable bad very bad


Weather data for Siem Reap (Angkor) in september:

Weather data for Siem Reap (Angkor) for september are derived from an average of the weather forecast since 2009 in Siem Reap (Angkor). There is a margin of error and these forecasts are to be considered as general information only. The weather in Siem Reap (Angkor) 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 Siem Reap (Angkor).


Weather in august in Siem Reap (Angkor)
Weather in october in Siem Reap (Angkor)
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