Measurements:
°C
°F
Phnom Penh
92°F
SW 12 mph
Feels like: 96°F
Precip: 0%
World Resorts Cambodia Phnom Penh Weather September Weather in Phnom Penh

Phnom Penh Weather: September

Average Day Temperature: 93.9°F
Average Night Temperature: 81.7°F
Number of Sunny Days: 2 days
Sunshine Hours: 12.0 - 12.3 hours
Number of Rainy Days: 13 days
Precipitation Totals: 7.1 in

Air Temperature in September, °F

Select Year: 2025 2024 2023

The highest day temperature in September 2025 was 98°F. The lowest night temperature was 79°F. The average values for day and night temperatures during September were 92.4°F и 81.9°F respectivly.

Sunny, Cloudy and Gloomy days

Most of the days in September are cloudy but you can also expect sunny or gloomy days.

Precipitation Totals in September, in

Precipitation total in September for Phnom Penh is 7.1 in. It makes september one of the most rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 6.4 mph. It makes September one of the most windless months of the year for Phnom Penh.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Phnom Penh in September is 5.7 hours.

Best Time to Visit Phnom Penh
The most sunny months:
January 20 days
February 20 days
March 18 days
The most warm months:
April 102.1 °F
March 101.8 °F
May 100.4 °F
The most cold months:
December 90.9 °F
November 91.9 °F
October 93.1 °F
The most rainy months:
October 14 days
September 13 days
July 10 days
The most windy months:
December 8 mph
July 7 mph
August 7 mph

Phnom Penh on the Weather Map

Cambodia Resorts:
NAME
Battambang +90
Koh Dek Koule +86
Koh Kong +90
Koh Rong +86
Phnom Penh +92
Siem Reap +88
Sihanoukville +86
24 Hours Weather Forecast
Phnom Penh
Local time: 16:05
05 dec, friday
1800 84°F
SW
8 mph
2100 82°F
SW
7 mph
06 dec, saturday
0000 78°F
SW
9 mph
0300 76°F
SW
7 mph
0600 72°F
S
6 mph
0900 80°F
SW
12 mph
1200 88°F
SW
12 mph
1500 88°F
SW
12 mph