Today's Tat Mun Island sea temperature is 29.4 °C
(1.6°C warmer than normal for this time of year)
| Mean: | 27.8 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 26.8 °C to 28.8 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 10 Jun (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a shorty .
Very warm in and out of the water temperature at Tat Mun Island today, but forecast to be overcast. With sea temperatures of 29 °C and a wind chill of 24 °C, most surfers will choose a shorty, boardshorts or a summer suit.
 Map of current China Surface Water Temperatures (based on measurements from oceanographic satellites) |  Map of current China 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 Tat Mun Island. 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.
Tat Mun Island sea temperatures peak in the range 27 to 30°C (81 to 86°F) on around the 14th of July and are at their coldest on about the 23rd of January, in the range 18 to 22°C (64 to 72°F). Year round warm sea temperatures at Tat Mun Island climb to their warmest in mid July. Even then a rash vest and board shorts should be fine for surfing at any time of year. Tat Mun Island sea temperatures are coldest in the fourth week of January. 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 Tat Mun Island 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 Tat Mun Island. Refer to our detailed weather forecasts for this information.
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