Sea Temperature

Ko Samui Sea Temperature

(Today) Apr 2018

30°C / 86°F

Current weather

(few clouds)
29°C / 84°F

Partly cloudy
Wind

8 mph

Humidity

79%


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

Monthly average max / min water temperatures

The graph below shows the range of monthly Ko Samui water temperature derived from many years of historical sea surface temperature data.

Maximum and minimum monthly sea temperatures in Ko Samui
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 26.9 27.2 27.5 28.2 28.9 28.9 28.9 28.2 28.2 28 28.1 26.8
Max °C 28.5 28.9 29.9 31.5 31.4 30.7 30.6 30.1 30.1 30.4 30.3 29.6
Min °F 81.1 81.6 82.5 84 85 84.7 84.7 83.5 83.5 83.4 83.5 81.4
Max °F 82.7 83.3 84.9 87.3 87.5 86.5 86.4 85.4 85.4 85.8 85.7 84.2

7 day tide forecast for Ko Samui

FriSatSunMonTueWedThu
  • High 12:22am
    (3.77m)
  • Low 06:19am
    (0.56m)
  • High 12:42pm
    (3.94m)
  • Low 06:51pm
    (0.67m)
  • High 01:05am
    (3.50m)
  • Low 07:00am
    (0.86m)
  • High 01:26pm
    (3.64m)
  • Low 07:40pm
    (0.97m)
  • High 01:56am
    (3.17m)
  • Low 07:51am
    (1.21m)
  • High 02:22pm
    (3.31m)
  • Low 08:47pm
    (1.28m)
  • High 03:07am
    (2.87m)
  • Low 09:07am
    (1.55m)
  • High 03:41pm
    (3.02m)
  • Low 10:31pm
    (1.46m)
  • High 04:54am
    (2.74m)
  • Low 11:14am
    (1.67m)
  • High 05:30pm
    (2.94m)
  • Low 12:21am
    (1.36m)
  • High 06:42am
    (2.91m)
  • Low 12:56pm
    (1.48m)
  • High 07:02pm
    (3.11m)
  • Low 01:31am
    (1.12m)
  • High 07:48am
    (3.22m)
  • Low 01:57pm
    (1.19m)
  • High 08:01pm
    (3.35m)

*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 April sea temperatures

  • Max: 31.5°C / 88.6°F
  • Avg: 29.8°C / 85.6°F
  • Min: 28.2°C / 82.7°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

Variations

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

Ko Samui average sea temperature chart