Siem Reap - When to Visit

When to Siem Reap

Climate guide & best times to travel

Monthly Climate Data for Siem Reap Average temperature and rainfall by month Climate Overview 17°C 22°C 28°C 33°C 39°C Rainfall (mm) 0 5 10 Jan Jan: 31.0°C high, 22.0°C low Feb Feb: 33.0°C high, 23.0°C low Mar Mar: 34.0°C high, 25.0°C low, 3mm rain Apr Apr: 34.0°C high, 26.0°C low, 3mm rain May May: 33.0°C high, 26.0°C low, 8mm rain Jun Jun: 33.0°C high, 26.0°C low, 5mm rain Jul Jul: 32.0°C high, 25.0°C low, 8mm rain Aug Aug: 32.0°C high, 25.0°C low, 8mm rain Sep Sep: 31.0°C high, 24.0°C low, 10mm rain Oct Oct: 30.0°C high, 24.0°C low, 8mm rain Nov Nov: 31.0°C high, 23.0°C low, 3mm rain Dec Dec: 30.0°C high, 22.0°C low Temperature Rainfall
Siem Reap experiences a tropical climate with two distinct seasons: the dry season (November to April) and the wet season (May to October). The dry season features minimal rainfall, with January through March receiving less than 1.1 inches of precipitation, making it ideal for temple exploration and outdoor activities. Temperatures remain consistently warm year-round, ranging from highs of 87-96°F, with the hottest months being March and April. The wet season brings substantial rainfall, peaking in September with 11.3 inches, though temperatures moderate slightly during this period. Humidity remains steady at 70% throughout the year, contributing to the tropical feel regardless of season.

Best Time to Visit

Beach & Relaxation
December to February offers the most comfortable temperatures (87-92°F highs) with minimal rainfall and lower humidity perception.
Cultural Exploration
November to March provides the best conditions for temple visits with dry weather and manageable temperatures, though December-February are ideal.
Adventure & Hiking
November to February offers the coolest temperatures and driest conditions, perfect for exploring Angkor Wat and surrounding areas on foot.
Budget Travel
May to October during the wet season offers lower accommodation rates and fewer crowds, though expect frequent afternoon showers.

Month-by-Month Guide

January

Peak dry season with excellent weather conditions. Minimal rainfall at 0.1 inches makes it perfect for temple exploration. High tourist season with comfortable temperatures and clear skies.

89°F High
68°F Low
0.1 inches Rainfall
High Crowds
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February

Continued dry season with slightly warmer temperatures. Still excellent conditions for sightseeing with only 0.2 inches of rainfall. Peak tourist season continues with ideal weather.

92°F High
72°F Low
0.2 inches Rainfall
High Crowds
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March

Temperatures begin to rise significantly as the hot season approaches. Still very dry with minimal rainfall, but heat becomes more intense during midday hours.

94°F High
75°F Low
1.1 inches Rainfall
High Crowds
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April

Hottest month of the year with temperatures reaching 96°F. Rainfall begins to increase slightly as the wet season approaches. Early morning temple visits recommended.

96°F High
77°F Low
2.3 inches Rainfall
Medium Crowds
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May

Transition into wet season with rainfall increasing to 5.9 inches. Temperatures moderate slightly from April's peak, but humidity becomes more noticeable with frequent showers.

94°F High
77°F Low
5.9 inches Rainfall
Low Crowds
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June

Full wet season with substantial rainfall at 8.4 inches. Temperatures cool slightly but frequent afternoon thunderstorms become common. Lush green landscapes emerge.

92°F High
77°F Low
8.4 inches Rainfall
Low Crowds
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July

Continued wet season with 7.6 inches of rainfall. Slightly cooler temperatures provide relief from the earlier hot season, though humidity remains high with regular downpours.

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

Persistent wet season conditions with 8.2 inches of rainfall. Temperatures remain moderate, but expect frequent rain showers that can disrupt outdoor activities.

90°F High
77°F Low
8.2 inches Rainfall
Low Crowds
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September

Peak of the wet season with the highest rainfall at 11.3 inches. Temperatures are among the coolest of the year, but heavy rains and flooding can affect travel plans.

89°F High
76°F Low
11.3 inches Rainfall
Low Crowds
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October

Late wet season with substantial rainfall at 7.9 inches, though beginning to taper off. Temperatures remain comfortable, and the countryside is at its most lush and green.

88°F High
76°F Low
7.9 inches Rainfall
Low Crowds
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November

Transition to dry season with dramatically reduced rainfall at 2.0 inches. Temperatures cool slightly and humidity decreases, marking the beginning of the best weather period.

88°F High
72°F Low
2.0 inches Rainfall
Medium Crowds
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December

Excellent dry season weather with minimal rainfall at 0.3 inches. Comfortable temperatures and low humidity make it ideal for all outdoor activities. Tourist season begins to peak.

87°F High
69°F Low
0.3 inches Rainfall
High Crowds
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Activities in Siem Reap