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Hamilton Beach State Park water temperature
Hamilton Beach State Park ratings
Quality on a good day: 3.0
Consistency of Surf: 2.0
Difficulty Level: 3.0
Crowds: 3.0

Overall: 3.0

See all 18 ratings

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Hamilton Beach State Park Water Temperature and Wetsuit Guide

(Lake Ontario – United States)

Today's Hamilton Beach State Park sea temperature is 18.9 °C.

Statistics for 19 Aug (1981–2005) – mean: 21.3 °C, range: 18.1 °C to 22.9 °C

Sunny with very warm air temperatures, feeling like 26 °C once we account for air movement. In contrast the sea remains relatively cold (18 °C). Surfers should wear a spring or summer wetsuit though no doubt some would wear less neoprene on such a warm day, no matter what temperature the sea is.

United States Sea Water Temperature

Map of current United States
Surface Water Temperatures
based on measurements from oceanographic satellites
United States Water Temperature Anomaly

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 Hamilton Beach State Park. 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.

Hamilton Beach State Park Water Temperature Graph

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.

Hamilton Beach State Park sea temperatures peak in the range 18 to 24°C (64 to 75°F) on around the 10th of August and are at their minimum on about the 13th of February, in the range 1 to 3°C (34 to 37°F). Hamilton Beach State Park sea temperatures are maximum 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 minimum sea temperatures at Hamilton Beach State Park 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 third week of February.

Actual sea surface water temperatures close to shore at Hamilton Beach State Park 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 Hamilton Beach State Park. Refer to our detailed weather forecasts for this information.