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Siem Reap

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Siem Reap Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Siem Reap year round climate

  • Spring (March–May): Average 84–87°F, hot climate. March and April are drier, with rainfall increasing from May. Common activities: Visiting Angkor Wat, enjoying poolside time. Recommended clothing: Light and breathable clothing, hat, sunglasses.
  • Summer (June–August): Average 82–84°F, hot and humid with abundant rainfall. Common activities: Visiting Angkor Wat (prepare for sun and rain), enjoying hotel amenities. Recommended clothing: Light and breathable clothing, rain gear, sunscreen.
  • Autumn (September–November): Average 81–82°F, slightly lower temperatures, but still relatively rainy. Common activities: Visiting Angkor Wat, exploring surrounding countryside. Recommended clothing: Light and breathable clothing, rain gear.
  • Winter (December–February): Average 78–81°F, relatively cooler temperatures, dry and less rainfall. Common activities: Visiting Angkor Wat, enjoying outdoor activities. Recommended clothing: Light long-sleeved clothing, light jacket.

Siem Reap climatological average

Annual average temperature: approx. 82.4°F / Annual rainfall: approx. 1371 mm / Summer humidity: 75%–85% / Rainiest month: September

Siem Reap monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
78.4°F
23.4
February
81.9°F
8.8
March
84.4°F
13.1
April
87.3°F
33.9
May
84.9°F
176.5
June
84.6°F
148.7
July
82.9°F
207
August
83.5°F
194.8
September
82.4°F
265.9
October
82°F
200.2
November
81.9°F
70
December
78.8°F
29.6

Siem Reap weather for the next seven days

9/24
Thursday
Light rain shower
78.5°F/75.6°F
9/25
Friday
Light rain shower
82.1°F/75.6°F
9/26
Saturday
Light rain shower
80.5°F/76.1°F
9/27
Sunday
Light rain shower
84.4°F/76°F
9/28
Monday
Cloudy
85.8°F/76.6°F
9/29
Tuesday
Overcast
88.2°F/76.2°F
9/30
Wednesday
Overcast
85.3°F/76.8°F