Siem Reap Weather Year-Round — Best Time to Visit
Siem Reap, Cambodia has hot weather year-round. The best time to visit is January (score: 98/100). Annual average high: 31.7°C, total rainfall: 1400mm.
When is the best time to visit Siem Reap?
98
January is the best month to visit Siem Reap with a travel score of 98/100 (Excellent).
Expect highs of 31.2°C, 2 rain days, and 10.6 hours of daily sunshine.
View January weather details →Travel Score by Month
98
Jan
96
Feb
84
Mar
74
Apr
65
May
66
Jun
66
Jul
66
Aug
64
Sep
66
Oct
83
Nov
94
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Siem Reap each month?
31.7°C
Avg High
24.2°C
Avg Low
1400mm
Annual Rain
How much rain does Siem Reap get?
Siem Reap receives 1400mm of rain annually. The wettest month is typically September with 265mm, while January is the driest.
What is the weather like each month in Siem Reap?
January
Best time to visit98
31°C
Low: 22°C
2 rain days
Excellent
February
96
33°C
Low: 23°C
3 rain days
Excellent
March
84
34°C
Low: 25°C
8 rain days
Excellent
April
74
34°C
Low: 26°C
14 rain days
Good
May
65
33°C
Low: 26°C
21 rain days
Good
June
66
32°C
Low: 26°C
20 rain days
Good
July
66
31°C
Low: 25°C
22 rain days
Good
August
66
31°C
Low: 25°C
24 rain days
Good
September
64
30°C
Low: 24°C
25 rain days
Good
October
66
30°C
Low: 24°C
22 rain days
Good
November
83
30°C
Low: 23°C
9 rain days
Excellent
December
94
30°C
Low: 22°C
3 rain days
Excellent
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What cities are near Siem Reap?
Data based on 1994–2024 averages · Last updated: 2024-12-31