Today's Flat Rock sea temperature is 19.2 °C
(Slightly cooler than normal)
| Mean: | 19.8 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 18.4 °C to 22.2 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 09 Jun (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a spring wetsuit.
Sunny with pleasantly warm air temperatures (feeling like 20 °C once we account for wind), yet at 19 °C the sea remains several degrees colder than the air at Flat Rock. The majority of surfers will need a spring wetsuit though a summer suit or even a shorty may suffice for a short session.
 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 Flat Rock. 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.
Flat Rock sea temperatures peak in the range 23 to 26°C (73 to 79°F) on around the 29th of January and are at their coldest on about the 18th of July, in the range 16 to 21°C (61 to 70°F). Flat Rock sea temperatures are always warm reach their highest in late January. You'll need a 2mm neoprene top or a shorty at dawn/dusk or if it's windy. The coldest Flat Rock sea 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 Flat Rock 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 Flat Rock. Refer to our detailed weather forecasts for this information.
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