Today's Point Grenville sea temperature is 14.8 °C
(Slightly cooler than normal (0.6° below average))
| Mean: | 15.4 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 13.8 °C to 17.2 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 25 Aug (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a spring wetsuit and neoprene boots.
The water temperature at Point Grenville is rather cool (14 °C) and the air temperature will feel similar. A good quality spring wetsuit with optional neoprene boots should suffice. No need for wetsuit gloves.
 Map of current United States Surface Water Temperatures (based on measurements from oceanographic satellites) |  Map of current United States 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 Point Grenville. 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.
Point Grenville sea water temperatures peak in the range 14 to 17°C (57 to 63°F) on around the 13th of August and are at their coldest on about the 24th of January, in the range 7 to 10°C (45 to 50°F). The warmest seasonal sea water temperatures at Point Grenville in the third week of August lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots. The coldest sea water temperatures at Point Grenville mean that you will need a flexible 6/5/4mm wetsuit or a well fitting 5/4mm wetsuit with gloves and 5mm neoprene booties and a hood to surf here in the fourth week of January.
Actual sea surface water temperatures close to shore at Point Grenville 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 Point Grenville. Refer to our detailed weather forecasts for this information.
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