Weather in Phnom Penh: September
 |
Average day temperature: | 89.5°F |
| Average night temperature: | 78.5°F | |
 |
Number of sunny days: | 2 days |
| Day length: | 12.0 - 12.3 hours | |
 |
Number of rainy days: | 13 days |
| Precipitation totals: | 7.1 in. | |
| more information | ||
14 days
forecast
forecast
| Phnom Penh |
weather in
October
October
| Phnom Penh |
Air temperature in September, °F
Show year:
2025
2024
2023
The highest day temperature during September of 2025 was 93°F. At the same time the lowest night temperature was 76°F. Daily and nightly averages during September were 88.2°F and 78.7°F.
Sunny, partly cloudy and cloudy days
Mostly all days in September are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Phnom Penh in September is 6.5 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 7.0 mph It makes September one of the least windy months of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 4.7.
Best time for vacation in Phnom Penh
Phnom Penh on a weather map
Places in Cambodia:
Name
°F
24 Hours Forecast
Phnom Penh
Local time: 04:43
June 09, tuesday
0600
81°F
NE
7 mph
7 mph
0900
91°F
E
14 mph
14 mph
1200
99°F
E
12 mph
12 mph
1500
95°F
NE
13 mph
13 mph
1800
91°F
NE
15 mph
15 mph
2100
82°F
NE
11 mph
11 mph
June 10, wednesday
0000
81°F
NE
7 mph
7 mph
0300
81°F
NE
7 mph
7 mph
