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Best time to visit Siem Reap: month by month
Short answer
November to February is the cool, dry season, with highs of 30-32°C and only 3-7 rainy days a month, the most comfortable and busiest time. March to May is very hot, 32-34°C. June to October is the rainy season, with 22-29 rainy days a month, usually short afternoon storms, green landscapes, full moats and fewer visitors.
Month by month
| Month | High | Low | Rainy days | Crowds |
|---|---|---|---|---|
| Jan | 30°C | 21°C | 3 | very high |
| Feb | 32°C | 22°C | 7 | high |
| Mar | 34°C | 24°C | 8 | medium |
| Apr | 33°C | 25°C | 19 | medium |
| May | 32°C | 26°C | 23 | low |
| Jun | 33°C | 26°C | 22 | low |
| Jul | 32°C | 25°C | 28 | medium |
| Aug | 32°C | 25°C | 27 | medium |
| Sep | 30°C | 24°C | 29 | low |
| Oct | 30°C | 24°C | 23 | low |
| Nov | 30°C | 23°C | 16 | high |
| Dec | 30°C | 21°C | 4 | very high |
Temperatures and rainy days: Copernicus ERA5 averages, 2021–2023. Crowd levels are our estimate.
Season by season
Spring (Mar-May)
Very hot, 32-34°C, with rain building from 8 rainy days in March to 23 in May. Khmer New Year in April.
Summer (Jun-Aug)
Rainy season, 32-33°C with 22-28 rainy days, mostly afternoon storms. Green rice fields and fewer tourists.
Autumn (Sep-Nov)
September is the wettest (29 rainy days); rain eases to 16 days in November. Water Festival on Tonle Sap in October or November.
Winter (Dec-Feb)
Cool and dry, 30-32°C by day and 21-22°C at night, with 3-7 rainy days. Peak season.
Events worth planning around
- Khmer New Year, mid-April
- Water Festival (Bon Om Touk), October or November
- Pchum Ben ancestors' festival, September or October
- Angkor Wat equinox sunrise, around late March and late September
When to avoid
April and May are extremely hot. Late December and January are the busiest, with crowded sunrise spots.
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Common questions
What is the best time to visit Siem Reap?
November to February, the cool, dry season, though it is the busiest.
Is the rainy season a bad time for Angkor?
No. Storms are usually short, the temples are greener and quieter, and hotels are cheaper.
When is the hottest time in Siem Reap?
March to May, with highs of 32-34°C and often hotter.