Temperature
Hot by day, warm at night.
88°Ftypical Aug high
Typical range
Siem Reap
Cambodia · Southeast Asia
Siem Reap is most comfortable in the drier months around November to January. Typical daytime highs run about 86-93°F year-round. The climate is hot and humid. Rainy season runs roughly May to October.
Best time to go
12 mo · Typical year
Temperature range
70°F to 93°F
Rain
14 days/mo
Sunshine
6.9 h/day
Humidity feel
Humid year-round
When to visit
Month-by-month fit
Precipitation
Rain most days.
77%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
6.4 hAug sunshine
Heat & humidity by month
Hot days with humid air through much of the month.
74%Aug share of very humid air hours
Easy airWarm airHot airHumid airVery humid air
Hourly comfort pattern
In August, afternoons feel about 95° and nights feel near 87°.
ComfortableWarmHotSwelteringNight shading
More detailIncludes sky, daypart comfort, and wind
Cloud cover
Mostly cloudy skies.
10%Aug clear sky
ClearCloud cover
Typical August day
August late afternoons are around 87°F, easing to about 84°F in early evening.
Avg temp Typical range
Morning84°F
Feels 91°F
Rain31%
Cloud86%
Humid airVery high
Sun intensityModerate
Midday89°F
Feels 96°F
Rain35%
Cloud86%
Humid airVery high
Sun intensityStrong
Late afternoon87°F
Feels 94°F
Rain53%
Cloud90%
Humid airVery high
Sun intensityModerate
Early evening84°F
Feels 91°F
Rain30%
Cloud93%
Humid airVery high
Sun intensityMinimal
Best windowWind pattern
Calm winds are typical in August.
6 mphAug Light breeze
Typical wind speed (mph)
Similar
Similar things to doHo Chi Minh CityVietnamSimilar things to doMumbaiIndiaSimilar things to doHanoiVietnamSimilar things to doBangkokThailand
Want a side-by-side climate view? Compare Siem Reap with Ho Chi Minh City.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology