Kosi Bay Water Temperature and Wetsuit Guide
(South-Africa – Kwazulu – Natal)
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Today's Kosi Bay sea temperature is 25.0 °C.
Statistics for 03 Jun (1981–2005)
– mean: 23.5 °C,
range: 22.7 °C
to 24.3 °C
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Sunny with warm air temperatures at Kosi Bay today (feels like 23 °C once we account for wind), and warmer sea temperatures (25 °C). Wear boardshorts or a shorty, or perhaps a thin summer wetsuit to keep the UV off.
(click thumbnails to expand) Below is a graph of Historical Sea Surface Temperature for Kosi Bay. 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.
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. Kosi Bay sea water temperatures peak in the range 26 to 28°C (79 to 82°F) on around the 4th of February and are at their coldest on about the 31st of July, in the range 21 to 23°C (70 to 73°F). Year round warm sea water temperatures at Kosi Bay climb to their highest in early February. Even then a rash vest and board shorts should be fine for surfing at any time of year. Kosi Bay sea water temperatures are always warm but dip to their coldest at the end of July. You'll need a 2mm neoprene top or a shorty at dawn/dusk or if it's windy. Actual sea surface water temperatures close to shore at Kosi Bay 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 Kosi Bay. Refer to our detailed weather forecasts for this information.
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