Sea Temperature

Charleston Sea Temperature

(Today) Aug 2020

29.6°C / 85.2°F

Current weather

27°C / 80°F
(scattered clouds)

Partly cloudy

3 mph



The measurements for the water temperature in Charleston, South Carolina 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 Charleston water temperature derived from many years of historical sea surface temperature data.

Maximum and minimum monthly sea temperatures in Charleston
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 15.3 14.7 15.2 16.8 19.6 24.2 26.9 27.2 26.3 23 20.4 16.9
Max °C 19.2 18.5 18.5 22.5 25.9 28.3 29.8 30 28.9 28 24 21.2
Min °F 61.1 60 60.6 64.5 69.8 77.2 81.5 82.1 80.4 75.4 70.2 64.1
Max °F 65 63.8 63.9 70.2 76.1 81.3 84.4 84.9 83 80.4 73.8 68.4

7 day tide forecast for Charleston

  • High 2:26am
  • Low 8:48am
  • High 3:09pm
  • Low 9:34pm
  • High 3:24am
  • Low 9:44am
  • High 4:06pm
  • Low 10:36pm
  • High 4:24am
  • Low 10:42am
  • High 5:03pm
  • Low 11:34pm
  • High 5:23am
  • Low 11:37am
  • High 5:58pm
  • Low 12:28am
  • High 6:19am
  • Low 12:31pm
  • High 6:51pm
  • Low 1:18am
  • High 7:13am
  • Low 1:22pm
  • High 7:41pm
  • Low 2:05am
  • High 8:03am
  • Low 2:11pm
  • High 8:28pm
7 day tide times for Charleston

*These tide times are estimates based on the nearest port (Charleston, South Carolina) 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°C / 86°F
  • Avg: 28.6°C / 83.5°F
  • Min: 27.2°C / 81°F
Charleston average sea temperature chart

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

Map showing location of Charleston (32.776570, -79.930920)

Locations nearby


Whilst sea temperatures for Charleston 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 Charleston
Carolopolis, Charl'ston, Charleston, Charleston i Sor-Carolina, Charleston i Sør-Carolina, Charlston, Charlstun, cha er si dun, chalseuteon, charlstwn, karwlynay jnwby, charusuton, tsharlstwn, karwlayna aljnwbyt, Чарлстон, Чарлстън, Чарльстон, צ'ארלסטון, تشارلستون، كارولاينا الجنوبية, چارلستون، کارولینای جنوبی, チャールストン, 查尔斯顿, 찰스턴

Charleston average sea temperature chart