January in Koh Rong — the year's strongest window
Best window · 9.6/10January averages 27°C (81°F) with humidity around 75%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 30 mm of rain — occasional showers rather than washed-out days — alongside about 21 sunny days and 11.4 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Koh Rong at 9.6/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
February in Koh Rong — the year's strongest window
Best window · 9.7/10February averages 28°C (82°F) with humidity around 76%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 31 mm of rain — occasional showers rather than washed-out days — alongside about 23 sunny days and 11.6 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Koh Rong at 9.7/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
March in Koh Rong — the year's strongest window
Best window · 9.3/10March averages 28°C (83°F) with humidity around 77%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 48 mm, so plan one flexible day in three; you still get about 28 sunny days and 11.9 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Koh Rong at 9.3/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
April in Koh Rong — the year's strongest window
Best window · 8.6/10April averages 30°C (85°F) with humidity around 77%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 74 mm, so plan one flexible day in three; you still get about 26 sunny days and 12.2 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Koh Rong at 8.6/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
May in Koh Rong — workable with trade-offs
Trade-offs · 6.9/10May averages 30°C (86°F) with humidity around 78%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 149 mm this is a genuinely wet month: about 20 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.9/10 here, 6th of 12 months, against 9.7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination. That combination — decent conditions at the lowest rates of the year — is the best value window on this page.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, February is materially better in Koh Rong — 2.8 points higher on the same scale.
June in Koh Rong — workable with trade-offs
Trade-offs · 6.1/10June averages 29°C (85°F) with humidity around 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
203 mm of rain puts this in monsoon territory — about 17 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.1/10 here, 9th of 12 months, against 9.7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, February is materially better in Koh Rong — 3.6 points higher on the same scale.
July in Koh Rong — workable with trade-offs
Trade-offs · 5.2/10July averages 29°C (84°F) with humidity around 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
379 mm of rain puts this in monsoon territory — about 12 sunny days across the whole month, and multi-day washouts are normal.
It scores 5.2/10 here, 11th of 12 months, against 9.7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, February is materially better in Koh Rong — 4.5 points higher on the same scale.
August in Koh Rong — workable with trade-offs
Trade-offs · 6.1/10August averages 29°C (84°F) with humidity around 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
227 mm of rain puts this in monsoon territory — about 18 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.1/10 here, 10th of 12 months, against 9.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, February is materially better in Koh Rong — 3.6 points higher on the same scale.
September in Koh Rong — workable with trade-offs
Trade-offs · 5.2/10September averages 29°C (83°F) with humidity around 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
380 mm of rain puts this in monsoon territory — about 12 sunny days across the whole month, and multi-day washouts are normal.
It scores 5.2/10 here, 12th of 12 months, against 9.7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, February is materially better in Koh Rong — 4.5 points higher on the same scale.
October in Koh Rong — workable with trade-offs
Trade-offs · 6.2/10October averages 29°C (83°F) with humidity around 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
239 mm of rain puts this in monsoon territory — about 20 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.2/10 here, 8th of 12 months, against 9.7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, February is materially better in Koh Rong — 3.5 points higher on the same scale.
November in Koh Rong — workable with trade-offs
Trade-offs · 6.7/10November averages 29°C (83°F) with humidity around 79%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 167 mm this is a genuinely wet month: about 20 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.7/10 here, 7th of 12 months, against 9.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, February is materially better in Koh Rong — 3 points higher on the same scale.
December in Koh Rong — the year's strongest window
Best window · 8.8/10December averages 28°C (82°F) with humidity around 77%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 57 mm, so plan one flexible day in three; you still get about 20 sunny days and 11.4 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Koh Rong at 8.8/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
