Today's Manly-South Steyne sea temperature is 20.3 °C
(Slightly warmer than usual (0.8° above average))
| Mean: | 19.5 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 17.9 °C to 21.2 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 10 Nov (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a shorty .
Warm in and out of the water temperature at Manly-South Steyne today, but forecast to be overcast. With sea temperatures of 20 °C and a wind chill of 22 °C, most surfers will choose a shorty or a summer suit or just board shorts.
 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 Manly-South Steyne. 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.
Manly-South Steyne sea water temperatures peak in the range 22 to 25°C (72 to 77°F) on around the 29th of January and are at their coldest on about the 21st of August, in the range 16 to 19°C (61 to 66°F). Manly-South Steyne sea water temperatures are always warm reach their warmest in late January. You'll need a 2mm neoprene top or a shorty at dawn/dusk or if it's windy. The coldest seasonal sea water temperatures at Manly-South Steyne in mid to late August lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots.
Actual sea surface water temperatures close to shore at Manly-South Steyne 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 Manly-South Steyne. Refer to our detailed weather forecasts for this information.
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