Siem Reap August — Angkor Wat's five central towers seen through palm trees in the green depths of the monsoon season

Siem Reap · Cambodia

August

Wettest period — flooded moats at Angkor and heavy daily rain; low prices throughout.

Strong option

#11 of 12 months

There are better months for Siem Reap — see the full ranking below.

See when to go instead →

Climate

High

31°C

Low

24°C

Rain

180mm

Sun

5.5hrs/day

30-year climate normals · Open Meteo ERA5

How August scores in Siem Reap

Weather
Average
Value
Excellent
Crowds
Excellent
Events
Below average
Atmosphere
Above average

What you gain in August

  • Angkor's moats and reservoir at maximum capacity: the western Baray (ancient reservoir) visible in rare conditions, and the outer moat reflecting the towers in still pre-rain mornings
  • Accommodation prices at or near the year's low: the wet season budget window is consistent across July and August
  • Siem Reap's local food scene — Khmer noodles, fish amok, lok lak — at its most authentic in the neighbourhood restaurants outside the Pub Street tourist zone

What you sacrifice

  • 180mm of rainfall: August matches July as the wettest pair of months in Siem Reap; sustained heavy rain is the norm rather than the exception
  • Outer moat causeway at Angkor Wat can be slippery and partially flooded on the worst days; check conditions before planning sunrise visits
  • Humidity at 84%: physical exertion in the temples (climbing Angkor Wat's steep towers, scrambling at Beng Mealea) is genuinely exhausting

How August compares to November (best month)

FactorAugustNovember
Weather
4
8
Value
8
6
Crowds
8
6

August in other destinations

Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within Siem Reap, not across destinations. Methodology →