Phnompenh - When to Visit

When to Phnompenh

Climate guide & best times to travel

Monthly Climate Data for Phnompenh Average temperature and rainfall by month Climate Overview 16°C 22°C 28°C 34°C 40°C Rainfall (mm) 0 135 271 Jan Jan: 31.0°C high, 21.0°C low, 13mm rain Feb Feb: 33.0°C high, 22.0°C low, 8mm rain Mar Mar: 34.0°C high, 24.0°C low, 36mm rain Apr Apr: 35.0°C high, 25.0°C low, 79mm rain May May: 34.0°C high, 25.0°C low, 119mm rain Jun Jun: 33.0°C high, 24.0°C low, 145mm rain Jul Jul: 32.0°C high, 24.0°C low, 163mm rain Aug Aug: 32.0°C high, 24.0°C low, 183mm rain Sep Sep: 32.0°C high, 24.0°C low, 272mm rain Oct Oct: 31.0°C high, 24.0°C low, 249mm rain Nov Nov: 31.0°C high, 23.0°C low, 119mm rain Dec Dec: 30.0°C high, 21.0°C low, 33mm rain Temperature Rainfall
Cambodia experiences a tropical monsoon climate with two distinct seasons: a dry season from November to April and a wet season from May to October. The dry season features minimal rainfall (0.3-1.4 inches per month), making it the most popular time for tourists, while temperatures gradually rise from comfortable 87-88°F highs in late dry season to peak heat of 95°F in April. The wet season brings substantial rainfall, peaking at 10.7 inches in September, but temperatures become more moderate (89-94°F highs) due to cloud cover and rain. Humidity remains consistently around 70% year-round, and while the wet season sees frequent afternoon downpours, mornings are often clear and suitable for sightseeing.

Best Time to Visit

Beach & Relaxation
December to February offers the most comfortable temperatures (87-91°F) and minimal rainfall (0.3-1.3 inches), perfect for outdoor relaxation.
Cultural Exploration
November to March provides dry conditions ideal for temple visits and walking tours, with manageable temperatures and excellent visibility.
Adventure & Hiking
November to February offers the coolest temperatures and driest conditions, making outdoor activities most comfortable before the intense April heat.
Budget Travel
May to October during wet season offers lower accommodation rates and fewer crowds, though expect daily afternoon showers and higher humidity.

Month-by-Month Guide

January

Peak dry season with comfortable temperatures and minimal rainfall. Excellent weather for all activities with clear skies and pleasant evenings. High tourist season with busy attractions.

88°F High
71°F Low
0.5 inches Rainfall
High Crowds
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February

Continued dry conditions with slightly warmer temperatures. Still excellent weather for sightseeing and outdoor activities. Remains peak tourist season with high accommodation prices.

91°F High
73°F Low
0.3 inches Rainfall
High Crowds
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March

Temperature begins to rise noticeably while remaining dry. Good weather continues but heat becomes more intense during midday. Tourist numbers start to decrease slightly.

94°F High
75°F Low
1.4 inches Rainfall
Medium Crowds
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April

Hottest month of the year with oppressive midday heat. Still relatively dry but occasional pre-monsoon showers begin. Tourist numbers drop due to intense heat.

95°F High
77°F Low
3.1 inches Rainfall
Medium Crowds
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May

Wet season begins with increasing rainfall and slightly cooler temperatures due to cloud cover. Morning activities still pleasant, but afternoon showers become common.

94°F High
78°F Low
4.7 inches Rainfall
Low Crowds
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June

Monsoon rains intensify with daily afternoon downpours typical. Temperatures moderate due to increased cloud cover and rain, making it more bearable than April-May.

92°F High
76°F Low
5.7 inches Rainfall
Low Crowds
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July

Consistent wet season weather with regular heavy showers and thunderstorms. Cooler temperatures provide relief from dry season heat, but humidity remains high throughout.

91°F High
76°F Low
6.4 inches Rainfall
Low Crowds
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August

Peak wet season continues with heavy rainfall and overcast skies common. Temperatures remain moderate and comfortable for indoor activities and covered attractions.

90°F High
76°F Low
7.2 inches Rainfall
Low Crowds
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September

Wettest month of the year with frequent flooding possible in low-lying areas. Despite heavy rains, temperatures are among the most moderate of the year.

89°F High
75°F Low
10.7 inches Rainfall
Low Crowds
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October

Wet season continues but begins to taper off toward month's end. Still significant rainfall but improving weather conditions signal the approaching dry season.

88°F High
75°F Low
9.8 inches Rainfall
Low Crowds
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November

Transition month as wet season ends and dry season begins. Decreasing rainfall and comfortable temperatures make this an excellent time to visit.

87°F High
73°F Low
4.7 inches Rainfall
Medium Crowds
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December

Dry season fully established with minimal rainfall and comfortable temperatures. Perfect weather for all outdoor activities as tourist season peaks again.

87°F High
71°F Low
1.3 inches Rainfall
High Crowds
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Activities in Phnompenh