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Sea Island water temperature
Sea Island ratings
Quality on a good day: 2.0
Consistency of Surf: 2.0
Difficulty Level: 1.0
Crowds: 5.0

Overall: 2.8

See all 18 ratings

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Sea Island Water Temperature and Wetsuit Guide

(Georgia, USA)

Today's Sea Island sea temperature is 16.9 °C.

Statistics for 12 Dec (1981–2005) – mean: 21.6 °C, range: 19.6 °C to 24.0 °C

The water temperature (16 °C) at Sea Island is quite cool. If the sun does come out as forecast, it should feel warm enough to surf in a good sealed spring wetsuit. Some surfers would prefer to wear gloves and boots too. Effective windchill factor of (14 °C) will make the air and water feel about the same temperature.

United States Sea Water Temperature

Map of current United States
Surface Water Temperatures
based on measurements from oceanographic satellites
United States Water Temperature Anomaly

Map of current United States
Sea Water Temperature Anomalies

(compared with long term averages
at this time of year)

(click thumbnails to expand)

Below is a graph of Historical Sea Surface Temperature for Sea Island. This has been derived from analysis of two decades of oceanographic satellite measurements of nearby open water. We have calculated the average water temperature variation around the year as well as the extremes that have been observed on each date.

Sea Island Water Temperature Graph

All of the graphs for the surf breaks presented on Surf-Forecast.com are on the same scale to enable comparison between locations around the world.

Sea Island sea temperatures peak in the range 27 to 29°C (81 to 84°F) on around the 26th of July and are at their coldest on about the 23rd of February, in the range 17 to 21°C (63 to 70°F). Year round warm sea temperatures at Sea Island climb to their highest in the fourth week of July. Even then a rash vest and board shorts should be fine for surfing at any time of year. The coldest Sea Island sea temperatures in the fourth week of February require something like a 3/2mm fully sealed wetsuit.

Actual sea surface water temperatures close to shore at Sea Island can vary by several degrees compared with these open water averages. This is especially true after heavy rain, close to river mouths or after long periods of strong offshore winds. Offshore winds cause colder deep water to replace surface water that has been warmed by the sun. Air temperature, wind-chill and sunshine should also be considered before deciding on the kind of wetsuit needed to stay warm when surfing at Sea Island. Refer to our detailed weather forecasts for this information.