Barnstable Water Temperature

(Today) 2025

1.3°C / 34.3°F

The water will feel freezing / baltic. You would have to be insane or getting paid to want to get in water this cold! If you do make sure you are wearing a top end drysuit and all the accessories.

*Live data from Cape Cod Bay, MA (221): 1.9°C / 35.4°F

Current weather

1°C / 34°F
(mist)
Partly cloudy
Wind
15 mph
Humidity
91%

The measurements for the water temperature in Barnstable, 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.

*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.

Water temp by month

Monthly average max / min water temperatures

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

Barnstable average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Barnstable
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 2.9 2 1.6 3.6 7.1 11 16.1 18.5 17.2 12.7 9.6 5.1
Max °C 7.4 4.9 5.7 9.7 13.3 18.6 21.9 21.9 20.3 18.9 13.9 11.4
Min °F 39 36.7 36.5 40.9 47.3 54.8 63.3 66.7 64.2 57.3 51 43.7
Max °F 43.5 39.6 40.6 47 53.5 62.4 69.1 70.1 67.3 63.5 55.3 50

The warmest water temperature is in August with an average around 68.4°F / 20.2°C. The coldest month is February with an average water temperature of 38.1°F / 3.4°C.


7 day tide forecast for Barnstable

ThuFriSatSunMonTueWed
  • Low 5:56am
    (0.09m)
  • High 11:53am
    (3.17m)
  • Low 6:27pm
    (-0.09m)
  • High 12:22am
    (2.9m)
  • Low 6:38am
    (0.07m)
  • High 12:33pm
    (3.11m)
  • Low 7:04pm
    (-0.03m)
  • High 12:58am
    (2.91m)
  • Low 7:19am
    (0.09m)
  • High 1:12pm
    (3.01m)
  • Low 7:42pm
    (0.05m)
  • High 1:34am
    (2.9m)
  • Low 7:59am
    (0.13m)
  • High 1:51pm
    (2.9m)
  • Low 8:19pm
    (0.16m)
  • High 2:12am
    (2.87m)
  • Low 8:41am
    (0.2m)
  • High 2:33pm
    (2.76m)
  • Low 8:58pm
    (0.28m)
  • High 2:51am
    (2.82m)
  • Low 9:25am
    (0.29m)
  • High 3:17pm
    (2.61m)
  • Low 9:39pm
    (0.41m)
  • High 3:33am
    (2.76m)
  • Low 10:12am
    (0.38m)
  • High 4:04pm
    (2.47m)
  • Low 10:24pm
    (0.54m)
7 day tide times for Barnstable

*These tide times are estimates based on the nearest accurate location (Barnstable Harbor, Beach Point, Massachusetts) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.