Westbrook — Water Temperature, Sea Conditions & Trends

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people.

It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart Over the Last 30 Days

Water temperature in Westbrook has risen over the last week and month. Currently, the sea water temperature at this location matches the average for this day in previous years.

According to our forecast, Water temperature in Westbrook will be 17.3°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Sea Temperature Data

Annual Water Temperature Overview by Month

Monthly Water Temp Ranges

30°C

25°C

20°C

15°C

10°c

5°C

0°C

Annual Water Temperature Trend

Westbrook sits on the Connecticut shoreline of Long Island Sound, where coastal temperatures follow a distinct seasonal rhythm. Winter months typically bring water temperatures down to about 0–5°C, while spring sees a gradual rise into the 4–12°C range as shallows warm first. By summer, surface waters commonly reach between 18 and 24°C, with the warmest readings in July and August; autumn then cools the Sound back toward roughly 10–18°C. Tidal action, wind and weather can cause day-to-day variations, and shallow protected coves warm more quickly than exposed stretches. These temperature ranges reflect surface conditions most relevant to casual swimmers, whereas deeper or shaded areas stay cooler.