Best Time to Visit Siem Reap: Weather and Crowds

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Siem Reap sits in a tropical monsoon climate, with the year splitting into a cool dry season, a hot dry season, and a wet season — each changing how a day at Angkor actually feels, and each with its own trade-offs between weather, crowds, and price. Here’s a month-by-month breakdown to help you weigh those trade-offs against your own trip.

November to February: peak season

This is the most comfortable stretch of the year, with daytime temperatures typically in the 25-30°C (77-86°F) range and low humidity. It’s also, unsurprisingly, when Siem Reap sees its highest visitor numbers — expect busier temples, especially around Angkor Wat at sunrise, and hotel prices noticeably higher than the rest of the year. If comfortable weather matters more to you than crowds, this is the window to pick.

March to April: hot season

Temperatures climb into the mid-to-high 30s°C (95-104°F) with high humidity, making full days of temple-hopping genuinely tiring. Crowds thin out compared to peak season, and hotel rates ease slightly. Early morning and late afternoon visits become more important during these months to avoid the worst of the midday heat.

May to October: wet season

Rain typically arrives as intense but short afternoon downpours rather than all-day rain, and mornings are often clear. This is Siem Reap’s low season for tourism, meaning noticeably fewer crowds at the temples and the lowest hotel prices of the year. The trade-off is the possibility of muddy paths at some outer temples and occasional flooding on rural roads leading to sites like Kulen Mountain.

So when should you actually go

For the best balance of comfortable weather and manageable crowds, late November, early December, or February tend to work well — shoulder points around peak season without its worst crowding. Budget-focused travelers comfortable with some rain often do well in June or September, when prices are lowest and the afternoon showers are predictable enough to plan around.

Quick reference

• Coolest and driest: December-January
• Hottest: April
• Wettest: September-October
• Cheapest hotel rates: June-September

How weather affects your temple visits

Heat and humidity matter more at Angkor than at most destinations, because there’s very little shade between temple entrances and the walking distances add up over a full day. In the hot season, guides and drivers commonly suggest an early start (7-9am), a break back at the hotel through the worst of midday heat, and a second session from around 3pm to closing. In the cool dry season this split matters much less, and a straight-through day is comfortable.

Festivals and events worth timing around

Khmer New Year (mid-April) brings major celebrations to Siem Reap alongside the year’s hottest weather, and Bon Om Touk, the Water Festival (typically November), draws large domestic crowds to Cambodia generally, though its effect on Siem Reap specifically is smaller than in Phnom Penh. Both are worth knowing about when checking hotel availability, since domestic travel spikes around them.

Shoulder season: an underrated middle ground

Late October to early November and March mark shoulder season transitions, when dry-season crowds haven’t yet built to peak levels but weather is still reasonably favorable — this window offers a meaningful sweet spot for travelers wanting lower prices and thinner crowds without the heaviest rains of true wet season.

How weather affects specific activities

Temple sightseeing works fine year-round given how much of the Angkor complex is outdoors regardless of season, but rainy season mornings before the afternoon rain arrive are often the most pleasant temperatures of the whole year for walking, while dry season’s clear skies make sunrise and sunset viewing more reliably spectacular.

Crowd levels by season in more detail

Peak dry season (December-January especially) sees the heaviest crowds at Angkor Wat’s sunrise viewing area and the Bayon’s main gallery, sometimes making it genuinely difficult to get an unobstructed photo at the most popular single spots — arriving right at gate opening becomes more important during these months than at any other time of year to beat both the heat and the crowd.

How hotel pricing tracks the seasonal calendar

Hotel rates in Siem Reap can run 30-50% higher during peak December–January weeks, and carry an additional holiday premium in the very last two weeks of December — booking well ahead for a December-January visit is worth it, since availability tightens noticeably as the season approaches.

How Siem Reap’s weather patterns compare to expectations from other tropical destinations

Travelers arriving with rainy-season expectations shaped by other regions sometimes overestimate how disruptive Cambodia’s wet season actually is — unlike some tropical destinations with all-day monsoon rain, Cambodia’s rainy season typically delivers a concentrated afternoon downpour lasting an hour or two, with mornings and evenings often remaining clear, meaning a well-timed daily schedule can work around the rain rather than being defined by it.

A month-by-month quick reference for planning purposes

November-December: excellent weather, moderate crowds building toward peak. January-February: best weather, peak crowds and pricing. March-April: hot, crowds thinning, prices softening. May: hottest month, rains beginning, noticeably quieter. June-September: full rainy season, lowest prices, lush green landscapes. October: rains tapering, a genuinely underrated transitional month with good value and improving weather.

A final word on picking your travel dates

There’s genuinely no wrong season to visit Siem Reap — every month offers a viable, worthwhile version of an Angkor trip, and the choice ultimately comes down to whether you prioritize ideal weather and accept higher prices and crowds, or prioritize value and quiet and accept some rain — both are entirely valid ways to experience the temples.

Whatever season ultimately fits your schedule, Siem Reap’s temples remain consistently impressive year-round, making the timing decision more about personal comfort preferences than about missing out on the destination’s core appeal.

If your trip also includes the capital, our Best Time to Visit Phnom Penh guide covers how conditions compare there.

Frequently asked questions

What is the driest month in Siem Reap?

January is typically the driest and most comfortable month, with low humidity and minimal rainfall.

Should I avoid the rainy season entirely?

Not necessarily — wet season rain usually falls in short, intense afternoon bursts rather than all day, mornings are often clear, and you’ll see far fewer crowds and lower prices.

Is it too hot to visit Angkor Wat in April?

April is the hottest month, often exceeding 38°C (100°F). It’s manageable with an early start and midday break, but it’s the most physically demanding time of year to visit.

When are hotel prices lowest in Siem Reap?

Roughly June through September, during the wet season low season, sees the year’s lowest hotel rates.