Winthrop Water Temperature

(Today) 2024

7.1°C / 44.8°F

The water will feel cold. All but the most ardent watersports enthusiasts will be thinking of packing up for the winter. If not we'd suggest a thick 5/4mm wetsuit along with some boots and a hood.

Current weather

13°C / 56°F
(broken clouds)
Partly cloudy
Wind
22 mph
Humidity
57%

The measurements for the water temperature in Winthrop, Massachusetts are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

Water temp by month

Monthly average max / min water temperatures

The graph below shows the range of monthly Winthrop water temperature derived from many years of historical sea surface temperature data.

Winthrop average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Winthrop
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 3.2 2.1 1.7 3.6 5.9 11 15.9 18 15.9 11.2 8.9 5.3
Max °C 6.9 5 4.9 7.9 11.5 16.9 20.3 20.6 19.4 17.5 12.5 10.4
Min °F 39.2 36.9 36.3 40.2 44.9 54.1 62.4 65.4 62 54.6 49.5 43.5
Max °F 42.9 39.8 39.5 44.5 50.5 60 66.8 68 65.5 60.9 53.1 48.6

The warmest water temperature is in August with an average around 66.7°F / 19.3°C. The coldest month is March with an average water temperature of 37.9°F / 3.3°C.