Weather · Koh Tao, Thailand
Koh Tao Weather in September
September in Koh Tao averages 28°C by day and 26°C at night, with about 205mm of rain. That makes it a reasonable time to visit.
Avg high
28°C
82°F
Avg low
26°C
79°F
Rainfall
205mm
#3 wettest of 12
What to pack
Summer clothes by day; a light layer for evenings. Pack a rain jacket or travel umbrella, showers are frequent this month.
Timing a trip around the weather? A Local Friend in Koh Tao builds it around the season for you.