Winthrop Jetty Water Temperature and Wetsuit Guide
(Massachusetts, USA)
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Today's Winthrop Jetty sea temperature is 9.4 °C
(Which is 1.2°C warmer than normal for this time of year)
| Mean: | 8.2 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 5.8 °C to 9.6 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 06 May (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a winter wetsuit, a neoprene hood, gloves and boots.
Sunny with deceptively warm air temperatures at Winthrop Jetty, yet the sea remains very cold (9 °C). Despite the weather (windchill 20 °C), surfers will need a quality winter wetsuit, a neoprene hood, gloves and boots.
(click thumbnails to expand)
Below is a graph of Historical Sea Surface Temperature for Winthrop Jetty. 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.
Winthrop Jetty sea temperatures peak in the range 19 to 22°C (66 to 72°F) on around the 10th of August and are at their lowest on about the 28th of February, in the range 2 to 5°C (36 to 41°F). Winthrop Jetty sea temperatures are warmest in early to mid August. Surfers should use a 2mm long sleeve shorty or a 3/2mm spring wetsuit if the wind is up. The lowest sea temperatures at Winthrop Jetty 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 February.
Actual sea surface water temperatures close to shore at Winthrop Jetty 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 Winthrop Jetty. Refer to our detailed weather forecasts for this information.



