Scituate — Water Temperature, Sea Conditions & Trends

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.

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 Scituate 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 Scituate will be 16.0°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

Scituate, on Massachusetts’ South Shore, is a coastal town with a mix of sandy beaches, rocky headlands and a sheltered harbor that influence local water conditions. Seasonal sea surface temperatures here vary considerably, reflecting New England’s strong seasonal cycle. In winter (December–February) waters are cold, commonly around 0–4 °C, and may approach freezing in severe cold spells. Spring (March–May) brings a gradual warming with temperatures typically rising from roughly 3–12 °C by late May. The warmest period is summer (June–August), when coastal water generally reaches about 15–22 °C, with the highest values in July and August. Autumn (September–November) sees cooling again, with sea temperatures usually falling from about 9–18 °C down toward winter levels by November. Local variations occur from sheltered harbor waters being slightly warmer than exposed open-coast beaches, and short-term changes follow weather, currents and tidal exchange.