Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Weather Guide
Siem Reap, Cambodia Average Monthly Weather
Weather score63Good annual avg
Best months: January, December, February
Across the year, average daytime temperatures are around 33°C, sunshine averages 7.2h per day, and rainfall totals about 1356mm.
Annual weather
Annual averages
Temp
33°C
Rain
1356mm
Annual total
Sun
7.2h
Weather score
63
Good avg
Seasonal climate calendar
Trip feel
Wet
Rainfall averages 215mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.7h per day, enough for a balanced month.
Map
Weather map
Compare Siem Reap, Cambodia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
October31°C average high
October is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsMarch to April
This stretch sets the upper range for average daytime heat.
Rain
October215mm average rain
October is wetter than Siem Reap's yearly average, so flexible plans matter more.
Driest monthsJanuary to April and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
October6.7 hours average sun
October sits close to Siem Reap's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJanuary to April and November to December
This stretch has the strongest sunshine in the monthly averages.
Weather score
October53 weather score
October scores below Siem Reap's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to February and December
These months have the strongest weather score in the monthly averages.
