Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
December verdict
Very good for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 7.5h per day, enough for a balanced month. Rainfall averages 70mm, which is relatively low for holiday planning.
Monthly averages
Temp
30°C
Rain
70mm
Sun
7.5h
Sea
29°C
Weather score
78
Very good
Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
Drier
Rainfall averages 70mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.5h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Compare Koh Rong, Cambodia with nearby places by weather score, rain, sun, temperature, and swim conditions.
December30°C average high
December is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsMarch to May
This stretch sets the upper range for average daytime heat.
December70mm average rain
December is one of Koh Rong's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to April and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December7.5 hours average sun
December is brighter than Koh Rong's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJanuary to April and December
This stretch has the strongest sunshine in the monthly averages.
December29°C average sea
December is below Koh Rong's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaApril to July
Sea temperatures are usually near 30°C in this stretch, so swimming comfort is at its strongest.
December78 weather score
December is one of Koh Rong's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJanuary to March and December
These months have the strongest weather score in the monthly averages.