Siem Reap weather in March

March in Siem Reap: sweltering, a little rain — a good time to visit.

#5 of 12 months in Siem Reap · #470 of 604 destinations to visit in March · comfort 66/100 (tier C)

Updated June 2026 · climate normals from ERA5 reanalysis

Siem Reap climate normals — March

Daytime high34°C / 93°F🔥 sweltering
Nighttime low25°C / 78°F
Feels like (high)39°C / 102°F
Rainfall34 mm / 1.3 in🌦 some rain
Rainy days5 days
Humidity67%💧 humid
Dew point22°C / 71°F
Sunshine11.1 h/day
Daylight12.1 h
Wind13 km/h / 8 mph
Air quality (US AQI)78🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

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Siem Reap in March — FAQ

Is March a good time to visit Siem Reap?
March in Siem Reap: sweltering, a little rain — a good time to visit. It ranks #5 of 12 months for Siem Reap on SeasonMap's comfort score (66/100).
What is the weather like in Siem Reap in March?
In March, Siem Reap averages a daily high of 34°C and a low of 25.4°C, with about 34.1 mm of rain over roughly 5.4 rainy days.
What is the air quality in Siem Reap in March?
Siem Reap has a mean US Air Quality Index of about 78 in March.

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