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Phnom Penh weather in August

Weather in Phnom Penh: August

Average day temperature: 91.2°F
Average night temperature: 78.6°F
Number of sunny days: 5 days
Day length: 12.3 - 12.6 hours
Number of rainy days: 9 days
Precipitation totals: 4.7 in.

Air temperature in August, °F

Show year:
2025
2024
2023

The highest day temperature during August of 2025 was 101°F. At the same time the lowest night temperature was 75°F. Daily and nightly averages during August were 92.6°F and 78.5°F.

Sunny, partly cloudy and cloudy days

Mostly all days in August are partly cloudy but sunny or cloudy days are also possible.

Precipitation total in August, in.

Precipitation total value in Phnom Penh in August is 4.3 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 8.7 mph It makes August one of the most 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 August is: 6.2.

Best time for vacation in Phnom Penh

Sunniest months:
January 20 days
February 20 days
March 18 days
Warmest months:
April 96.9 °F
March 96.6 °F
May 95.3 °F
Coldest months:
December 86.8 °F
November 87.7 °F
October 88.8 °F
Rainiest months:
October 14 days
September 13 days
July 10 days
Windiest months:
December 8.4 mph
July 7.9 mph
August 7.9 mph

Phnom Penh on a weather map

Phnom Penh
+84°F
SW 12 mph
Feels like: +90°F
Precip.: 0%
Places in Cambodia:
Name
°F
+86°F
+81°F
+81°F
+88°F
+84°F
+81°F
+86°F
24 Hours Forecast
Phnom Penh
Local time: 11:35
December 05, friday
1200
84°F
SW
12 mph
1500
88°F
SW
12 mph
1800
81°F
SW
8 mph
2100
79°F
SW
7 mph
December 06, saturday
0000
75°F
SW
9 mph
0300
73°F
SW
7 mph
0600
70°F
S
6 mph
0900
77°F
SW
12 mph
Units of measurement: °C / °F