Phnom Penh, Cambodia: Annual Weather Averages
April is the hottest month in Phnom Penh with an average temperature of 30.5°C (87°F) and the coldest is January at 26°C (79°F) with the most daily sunshine hours at 8 in December. The wettest month is September with an average of 60mm of rain. .
Average Temperature: Phnom Penh
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 26 | 27 | 29 | 31 | 30 | 29 | 28 | 29 | 28 | 27 | 27 | 26 |
| °F | 79 | 81 | 83 | 87 | 86 | 83 | 82 | 84 | 82 | 81 | 80 | 79 |
Average High/Low Temperature: Phnom Penh
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 31 | 32 | 34 | 35 | 34 | 33 | 32 | 32 | 31 | 30 | 30 | 30 |
| Low °C | 21 | 22 | 23 | 26 | 26 | 24 | 24 | 26 | 25 | 24 | 23 | 22 |
| High °F | 88 | 90 | 93 | 95 | 93 | 91 | 90 | 90 | 88 | 86 | 86 | 86 |
| Low °F | 70 | 72 | 73 | 79 | 79 | 75 | 75 | 79 | 77 | 75 | 73 | 72 |
Average Rainfall: Phnom Penh
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 10 | 20 | 10 | 10 | 20 | 20 | 40 | 40 | 60 | 50 | 40 | 10 |
| Days | 1 | 1 | 2 | 5 | 13 | 12 | 13 | 14 | 15 | 12 | 5 | 2 |
Average Daily Sunshine Hours: Phnom Penh
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hours | 8 | 8 | 8 | 8 | 8 | 7 | 6 | 6 | 6 | 6 | 6 | 8 |