Climate guide for Siem Reap, Cambodia

Siem Reap in April

Weather, crowds & best time to visit

How to read the score (0–10)
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April · Cambodia

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

Weather in Siem Reap in April

Average temperature 30°C, 127 mm of rain, about 28 days with 6+ hours of sunshine and 69% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

April score

4.2/10

Ranked #6 of 12 months

Full year for Siem Reap
Avg temp
30°C
Rainfall
127 mm
Humidity
69%
Days with 6h+ sun
28
Crowd Density
Quiet / Uncrowded
Average Expenses
$ · Budget Friendly ($)

April in Siem Reap scores 4.2/10 for sightseeing and cultural travel - an above-average month (#6 of 12). Expect around 30°C, 127 mm of rain, and roughly 28 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.

April in Siem Reap — off-season conditions

April averages 30°C (86°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.

Monthly rainfall reaches 127 mm — wet for this destination — but about 28 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

It scores 4.2/10 here, 6th of 12 months, against 8.4/10 in the destination's best month.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

Plan for low-season pricing, with crowds are light for this destination. That combination — decent conditions at the lowest rates of the year — is the best value window on this page.

Flexible dates? December scores 4.2 points higher here — enough to change the trip.

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 April?
In April, Siem Reap averages 30°C, 127 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 4.2/10.
Is April a good time to visit Siem Reap?
April earns a 4.2/10 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 April?
Expect about 127 mm of rain in April. Average humidity is 69% and there are about 28 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.