Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Weather Guide
Rayong, Thailand Average Monthly Weather
Weather score63Good annual avg
Best months: December, January, February
Across the year, average daytime temperatures are around 32°C, sunshine averages 6.7h per day, and rainfall totals about 2099mm. Sea temperatures average 29°C across the year.
Annual weather
Annual averages
Temp
32°C
Rain
2099mm
Annual total
Sun
6.7h
Sea
29°C
Weather score
63
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 320mm, so showers are a real planning factor.
Limited sun
Sunshine averages 4.5h per day, so this is not one of the brighter months.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Rayong, Thailand with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August31°C average high
August is close to Rayong's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
August320mm average rain
August is wetter than Rayong'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
August4.5 hours average sun
August is one of Rayong's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to April and December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August29°C average sea
August is close to Rayong's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaApril to June
Sea temperatures are usually near 30°C in this stretch, so swimming comfort is at its strongest.
Weather score
August45 weather score
August is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to February and December
These months have the strongest weather score in the monthly averages.
