Point Grenville Water Temperature and Wetsuit Guide

The water temperature (8 °C / 47 °F) at Point Grenville is very cold. Despite the sun, surfers will need plenty of neoprene. Wear a quality winter wetsuit, a neoprene hood, gloves and boots. A windchill factor of (5 °C / 41 °F).

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 temperatures peak in the range 14 to 17°C (57 to 63°F) on around the 12th 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 highest seasonal sea temperatures at Point Grenville in the second week of August lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots. The coldest sea 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.

Latest surface water temperature for the entire globe. Click the image to view a larger version.