Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
November verdict
Koh Samui, Thailand in November
Weather score54Mixed
Mixed for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 5.8h per day, enough for a balanced month. Rainfall averages 463mm, so showers are a real planning factor.
November weather
Monthly averages
Temp
29°C
Rain
463mm
Sun
5.8h
Sea
29°C
Weather score
54
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 463mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.8h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Koh Samui, Thailand with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
November29°C average high
November is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsApril to September
This stretch sets the upper range for average daytime heat.
Rain
November463mm average rain
November is one of Koh Samui's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
November5.8 hours average sun
November is one of Koh Samui's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsFebruary to April
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
November29°C average sea
November is below Koh Samui's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaApril to September
Sea temperatures are usually near 30°C in this stretch, so swimming comfort is at its strongest.
Weather score
November54 weather score
November is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsFebruary to March
These months have the strongest weather score in the monthly averages.
