Ko Samui Sea Temperature

(Today) Aug 2017

29.4°C / 85°F

Current weather

(scattered clouds)
29°C / 84°F

Partly cloudy

13 mph



The measurements for the sea temperature in Ko Samui, Surat Thani are provided by the daily satellite readings provided by the NOAA. The temperatures given are the surface temperature (SST) which is most relevant to recreational users.

7 day tide forecast for Ko Samui

  • Low 04:42am
  • High 10:54am
  • Low 05:07pm
  • High 11:16pm
  • Low 05:17am
  • High 11:28am
  • Low 05:39pm
  • High 11:49pm
  • Low 05:50am
  • High 12:01pm
  • Low 06:09pm
  • High 12:22am
  • Low 06:22am
  • High 12:33pm
  • Low 06:39pm
  • High 12:55am
  • Low 06:54am
  • High 01:06pm
  • Low 07:09pm
  • High 01:30am
  • Low 07:29am
  • High 01:41pm
  • Low 07:41pm
  • High 02:08am
  • Low 08:09am
  • High 02:22pm
  • Low 08:21pm

*These tide times are estimates based on the nearest port (Pulau Besin, Myanmar) and may differ by up to half and hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.

Average August sea temperatures

  • Max: 30.2°C / 86.3°F
  • Avg: 29.1°C / 84.4°F
  • Min: 28.3°C / 82.9°F
Ko Samui average sea temperature chart

These average ocean temperatures for Ko Samui are calculated from several years of archived data.

Map showing location of Ko Samui (9.535670, 99.935670)

Locations nearby


Whilst sea temperatures for Ko Samui are as accurate as current data allows there may be slight local and regional variations depending on conditions. Time of day and wind direction may have a temporary local effect as can water flows from neraby rivers.

Alternate names for Ko Samui
Amphoe Ko Samui, Amphoe Koh Sa-mui, Amphoe Koksamui, Ban Na Dhaun, Ban Na Thaun, Ban Na Thon, Ban Natawn, Ban Naton, Ban Suan Yang, Ko Samui, Na Thaun, Naton, keaasmuy, เกาะสมุย