Hot
Average highs reach 32°C, so days can feel very hot.
Weather Guide
Surat Thani, Thailand Average Monthly Weather
Weather score64Good annual avg
Best months: February, March, January
Across the year, average daytime temperatures are around 32°C, sunshine averages 6.6h per day, and rainfall totals about 1896mm. Sea temperatures average 29°C across the year.
Annual weather
Annual averages
Temp
32°C
Rain
1896mm
Annual total
Sun
6.6h
Sea
29°C
Weather score
64
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 182mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.1h per day, enough for a balanced month.
Warm sea
Sea temperatures average 30°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Surat Thani, Thailand with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July32°C average high
July is close to Surat Thani's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsMarch to May
This stretch sets the upper range for average daytime heat.
Rain
July182mm average rain
July sits near Surat Thani's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July6.1 hours average sun
July is below Surat Thani's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsFebruary to March
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July30°C average sea
July is close to Surat Thani's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaMarch to July
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
July57 weather score
July scores below Surat Thani's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to March
These months have the strongest weather score in the monthly averages.
Hotels near Surat Thani, Thailand
Marriott
Renaissance Koh Samui Resort & SpaKoh Samui, Thailand
W Koh SamuiKoh Samui, Thailand
Sheraton Samui ResortKoh Samui, Thailand
Vana Belle, a Luxury Collection Resort, Koh SamuiKoh Samui, Thailand
The Ritz-Carlton, Koh SamuiKoh Samui, Thailand
Khao Lak Marriott Beach Resort & SpaTakua Pa District, Phang Nga, Thailand