Today's Mona Vale-The Basin sea temperature is 19.1 °C
(Normal for this time of year)
| Mean: | 19.4 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 18.0 °C to 21.4 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 09 Jun (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a summer wetsuit.
The water temperature (19 °C) at Mona Vale-The Basin 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 Mona Vale-The Basin. 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.
Mona Vale-The Basin water temperatures peak in the range 22 to 25°C (72 to 77°F) on around the 5th of February and are at their minimum on about the 16th of August, in the range 16 to 20°C (61 to 68°F). Mona Vale-The Basin water temperatures are always warm reach their warmest at the beginning of February. You'll need a 2mm neoprene top or a shorty at dawn/dusk or if it's windy. The minimum seasonal water temperatures at Mona Vale-The Basin in the middle of 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 Mona Vale-The Basin 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 Mona Vale-The Basin. Refer to our detailed weather forecasts for this information.
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