Today's Port Denison sea temperature is 19.3 °C
(Slightly cooler than normal (0.6° below average))
| Mean: | 19.9 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 19.0 °C to 20.9 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 24 Aug (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a summer wetsuit.
The water temperature (19 °C) at Port Denison is relatively warm. If the sun does come out as forecast, it should feel warm enough to surf in a summer wetsuit. Effective air temperature of 18 °C.
 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 Port Denison. 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.
Port Denison sea water temperatures peak in the range 23 to 24°C (73 to 75°F) on around the 1st of March and are at their coldest on about the 10th of September, in the range 18 to 21°C (64 to 70°F). Port Denison sea water temperatures are always warm reach their warmest at the beginning of March. You'll need a 2mm neoprene top or a shorty at dawn/dusk or if it's windy. The coldest Port Denison sea water temperatures in early to mid September require something like a 3/2mm fully sealed wetsuit.
Actual sea surface water temperatures close to shore at Port Denison 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 Port Denison. Refer to our detailed weather forecasts for this information.
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