Climate guide for Siem Reap, Cambodia

Siem Reap in March

Weather, crowds & best time to visit

How to read the score (0–10)
05810
UnfavorableGoodOptimal

March · Cambodia

Best time to visit Siem Reap in March Weather, crowds & prices

Weather in Siem Reap in March

Average temperature 29°C, 69 mm of rain, about 31 days with 6+ hours of sunshine and 68% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

March score

6.0/10

Ranked #4 of 12 months

Full year for Siem Reap
Avg temp
29°C
Rainfall
69 mm
Humidity
68%
Days with 6h+ sun
31
Crowd Density
Moderate Crowds
Average Expenses
$$ · Moderate Cost ($$)

March in Siem Reap scores 6.0/10 for sightseeing and cultural travel - an above-average month (#4 of 12). Expect around 29°C, 69 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.

Siem Reap is the base for Angkor's temples, with a river town of markets and cafés beside it.

March in Siem Reap — workable with trade-offs

Days in March average 29°C (84°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

Budget for roughly 69 mm of rain this month — a flexible day or two helps — with about 31 days with 6+ hours of sunshine and 12.1 hours of daylight to work around it.

That is 6/10 on the same scale — 4th of 12 months, versus 8.4/10 for the best month here.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.

Expect mid-season pricing, and crowds are moderate.

If your dates are flexible, December is materially better in Siem Reap — 2.4 points higher on the same scale.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Siem Reap in March?
In March, Siem Reap averages 29°C, 69 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 6.0/10.
Is March a good time to visit Siem Reap?
March earns a 6.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Siem Reap in March?
Expect about 69 mm of rain in March. Average humidity is 68% and there are about 31 days with 6+ hours of sunshine.

Curated in Siem Reap

Tickets & experiences

Things to do in Siem Reap

Siem Reap, Cambodia. Live activities and tours from GetYourGuide, matched to this destination.