Today's JD Reef sea temperature is 17.9 °C
(Slightly cooler than normal (0.5° below average))
| Mean: | 18.4 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 16.6 °C to 20.1 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 03 Aug (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a summer wetsuit.
The water temperature (17 °C) at JD Reef 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 17 °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 JD Reef. 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.
JD Reef water temperatures peak in the range 22 to 25°C (72 to 77°F) on around the 5th of February and are at their coldest on about the 18th of July, in the range 16 to 20°C (61 to 68°F). JD Reef water temperatures are always warm reach their maximum at the beginning of February. You'll need a 2mm neoprene top or a shorty at dawn/dusk or if it's windy. The coldest JD Reef water temperatures in the third week of July require something like a 3/2mm fully sealed wetsuit.
Actual sea surface water temperatures close to shore at JD Reef 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 JD Reef. Refer to our detailed weather forecasts for this information.
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