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Weather & Climate in Phnom Penh, Cambodia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Phnom Penh has a warm climate with an average annual temperature of 83°F (28°C). Winters average 79°F in January while summers reach 83°F in July / relatively mild seasonal variation. The area gets 242 sunny days per year, above the national average. Annual precipitation totals 51.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 66 feet.
Temperature
79°F Jan (26°C)
83°F Jul (28°C)
| Annual Average | 82.5°F |
| 53% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 242 days/yr |
Geography
| Elevation | 66 ft (20 m) |
| Area | 262.0 sq mi (678.5 km²) |
| Population Density | 6,007/sq mi |
| Coordinates | 11.5625°N, 104.9160°W |
| Timezone | Asia/Phnom_Penh |
Precipitation & Snow
Air Quality
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 1997 | Linda | Category 1 | 58 mph | 285 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 0.2 in | Driest |
| February | 81°F (27°C) | 0.4 in | |
| March | 84°F (29°C) | 1.1 in | |
| April | 86°F (30°C) | 2.4 in | Warmest |
| May | 85°F (30°C) | 5.9 in | |
| June | 84°F (29°C) | 5.6 in | |
| July | 83°F (28°C) | 5.8 in | |
| August | 83°F (28°C) | 6.2 in | |
| September | 82°F (28°C) | 8.6 in | |
| October | 82°F (28°C) | 9.8 in | Wettest |
| November | 81°F (27°C) | 4.7 in | |
| December | 79°F (26°C) | 1.1 in | Coldest |
Phnom Penh has a seasonal temperature swing of 7°F / from 79°F in December to 86°F in April. Total annual precipitation is 51.9 inches, with October being the wettest month (9.8") and January the driest (0.2").