21Β° to 31Β°
Driest & Coolest
The coolest, driest month of the year, when it almost never rains.
βοΈ Sunscreenβ¨ Best sightseeing weather
23Β° to 33Β°
Dry & Sunny
Still part of the best window, warming up as the year's heat begins to build.
βοΈ Sunscreenβ¨ Best sightseeing weather
25Β° to 34Β°
Heat Builds
Dry season holds, but the heat is climbing fast toward the hottest months of the year.
π₯΅ Heat protectionβοΈ Sunscreen
26Β° to 35Β°
Hottest Month
Among the hottest months of the year, still comparatively dry.
π₯΅ Heat protectionπ§ Drink water often
26Β° to 35Β°
Monsoon Arrives
Just as hot as April, as the rains set in for the season.
β Umbrella essentialπ₯΅ Heat protection
26Β° to 33Β°
Steady Rain
Rain becomes a regular fixture, with heat and humidity both high.
β Umbrella essentialπ₯΅ Heat protection
25Β° to 32Β°
Steady Rain
Rain a near-daily presence, part of the wetter half of the year.
β Umbrella essentialβ οΈ Flash-flood aware
25Β° to 32Β°
Steady Rain
Similar to July, comparatively humid and wet.
β Umbrella essentialβ οΈ Flash-flood aware
25Β° to 31Β°
Wettest Month
The rainiest month of the year by a wide margin.
β Heavy rain gearβ οΈ Flash-flood aware
25Β° to 31Β°
Rain Eases
Still wet, though easing back somewhat from September's peak.
β Umbrella essentialβ οΈ Flash-flood aware
24Β° to 31Β°
Monsoon Withdraws
Rain drops off sharply as the monsoon retreats earlier here than further south.
β Umbrella handyπ₯΅ Heat protection
22Β° to 30Β°
Coolest Month
The coolest month of the year, part of the best window, though an occasional typhoon can still affect the first half.
βοΈ Sunscreenβ¨ Best sightseeing weather
β
β
β
peak season, β
β
β decent shoulder months, β
ββ true off-peak, based on rain frequency, heat, and haze.
Frequently asked questions
When is monsoon season in Siem Reap?›
Siem Reap's rainy season historically runs from May to early November, with September the wettest month by a wide margin.
What is the best time of year to visit Siem Reap and Angkor Wat?›
December through mid-February is historically the coolest, driest, and sunniest stretch, and the best time for a visit.
What is the least favorable time to visit Siem Reap?›
May, June, and September are historically the wettest months, with September standing out by far.
Which month has the most rain in Siem Reap?›
September is historically the wettest month, averaging around 290mm of rain.
Which month is the driest in Siem Reap?›
January and February are historically tied as the driest months, when it almost never rains.
How hot does Siem Reap get?›
April and May are historically tied as the hottest months of the year.
What should I pack for visiting Angkor Wat in the rainy season?›
A light raincoat or umbrella is worth packing from May through early November, along with comfortable, modest clothing for temple visits.
Does the monsoon end earlier in Siem Reap than the rest of Cambodia?›
Yes. Lying in the north of the country, Siem Reap's monsoon typically retreats in early November, a bit sooner than the mid-to-late-November withdrawal seen further south.
Is Tonle Sap Lake near Siem Reap?›
Yes. Tonle Sap, Southeast Asia's largest lake, sits a short drive from the city and swells dramatically during the rainy season.
Do typhoons affect Siem Reap?›
Rarely, and usually weakened. Typhoons typically pass north into Vietnam and Laos, though Cambodia can occasionally be affected from mid-October to mid-November, with a peak in early November.