Phnom Penh Weather & Climate

Cambodia

Phnom Penh sees feels-like daytime highs peak around 45.4°C in May and nighttime lows bottom out near 27.9°C in January. August is the wettest month (~196 mm), while January is the driest (~9 mm). For sunshine, February leads with about 47% clear skies.

Best time to visit Phnom Penh

Based on mild feels-like temperatures and low rain chances, the most comfortable months are January, December, and February — expect around 27.936.7°C with roughly 6% chance of rain on a given day in January.

Phnom Penh climate by month

MonthLow / High °CRain %RainfallClear skiesWind
January27.9° / 36.7°6%9 mm45%10.6 kph
February28.7° / 38.5°7%9 mm47%10.9 kph
March30.4° / 41.3°12%18 mm38%11.5 kph
April33.8° / 43.6°25%44 mm21%10.9 kph
May35.4° / 45.4°44%107 mm11%10.8 kph
June34.6° / 43.6°57%167 mm10%11.4 kph
July34.2° / 42°62%181 mm11%12 kph
August34.2° / 41.7°63%196 mm9%11.8 kph
September33.7° / 40.2°63%182 mm11%9.9 kph
October32.5° / 40°56%146 mm19%8.8 kph
November30.9° / 39.3°30%66 mm31%10.2 kph
December28.7° / 36.9°11%19 mm42%11.5 kph

Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).

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