Today's Cottesloe Beach sea temperature is 18.4 °C
(2.3°C colder than average for this time of year)
| Mean: | 20.7 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 19.2 °C to 22.0 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 10 Jun (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a summer wetsuit.
The Cottesloe Beach water temperature is reasonably warm (18 °C) and the air temperature will similar (windchill forecast 16 °C). A good quality summer wetsuit would be ideal.
 Map of current Australia Surface Water Temperatures (based on measurements from oceanographic satellites) |  Map of current Australia 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 Cottesloe Beach. 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.
Cottesloe Beach sea temperatures peak in the range 22 to 23°C (72 to 73°F) on around the 1st of March and are at their minimum on about the 9th of September, in the range 17 to 20°C (63 to 68°F). Cottesloe Beach sea temperatures are always warm reach their maximum at the beginning of March. You'll need a 2mm neoprene top or a shorty at dawn/dusk or if it's windy. The minimum Cottesloe Beach sea temperatures in early to mid September require something like a 3/2mm fully sealed wetsuit.
Actual sea surface water temperatures close to shore at Cottesloe Beach 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 Cottesloe Beach. Refer to our detailed weather forecasts for this information.
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