Today's Rainbow Bay sea temperature is 22.3 °C
(Normal for this time of year)
| Mean: | 22.4 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 21.5 °C to 23.6 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 09 Jun (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a shorty .
Warm in and out of the water temperature at Rainbow Bay today, but forecast to be overcast. With sea temperatures of 22 °C and a wind chill of 20 °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 Rainbow Bay. 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.
Rainbow Bay water temperatures peak in the range 26 to 28°C (79 to 82°F) on around the 5th of February and are at their coldest on about the 16th of August, in the range 19 to 22°C (66 to 72°F). Year round warm water temperatures at Rainbow Bay climb to their highest at the beginning of February. Even then a rash vest and board shorts should be fine for surfing at any time of year. Rainbow Bay water temperatures are coldest in the middle of August. Surfers should use a 2mm long sleeve shorty or a 3/2mm spring wetsuit if the wind is up.
Actual sea surface water temperatures close to shore at Rainbow Bay 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 Rainbow Bay. Refer to our detailed weather forecasts for this information.
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