Jamestown Water Temperature

(Today) 2024

20.2°C / 68.4°F

The water will feel tepid. Swimming will be tolerable without a wetsuit, although it will take a little getting used to. If you intend to stay in the water for a while a 3/2mm wetsuit will be ideal.

*Live data from Newport, RI: 19.4°C / 66.9°F

Current weather

23°C / 74°F
(clear sky)
Partly cloudy
Wind
10 mph
Humidity
62%

The measurements for the water temperature in Jamestown, Rhode Island 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 Jamestown water temperature derived from many years of historical sea surface temperature data.

Jamestown average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Jamestown
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 2.9 2 2.1 3.3 7.7 12.4 17.5 19.7 18.2 13.9 10.6 5.8
Max °C 7.3 4.6 5.5 10.2 13.6 19.1 22.1 22.6 20.7 19.3 14.7 12
Min °F 39 36.6 37.1 40.7 48.2 57 65.3 68.6 65.7 59.2 52.7 44.9
Max °F 43.4 39.2 40.5 47.6 54.1 63.7 69.9 71.5 68.2 64.6 56.8 51.1

The warmest water temperature is in August with an average around 70°F / 21.1°C. The coldest month is February with an average water temperature of 37.9°F / 3.3°C.

7 day tide forecast for Jamestown

MonTueWedThuFriSatSun
  • Low 12:40am
    (-0m)
  • High 6:40am
    (1.16m)
  • Low 12:42pm
    (-0.05m)
  • High 7:07pm
    (1.3m)
  • Low 1:21am
    (-0.09m)
  • High 7:29am
    (1.29m)
  • Low 1:36pm
    (-0.12m)
  • High 7:56pm
    (1.34m)
  • Low 2:02am
    (-0.15m)
  • High 8:18am
    (1.39m)
  • Low 2:29pm
    (-0.15m)
  • High 8:44pm
    (1.34m)
  • Low 2:43am
    (-0.18m)
  • High 9:06am
    (1.44m)
  • Low 3:21pm
    (-0.15m)
  • High 9:33pm
    (1.3m)
  • Low 3:25am
    (-0.18m)
  • High 9:56am
    (1.44m)
  • Low 4:11pm
    (-0.1m)
  • High 10:24pm
    (1.23m)
  • Low 4:07am
    (-0.14m)
  • High 10:48am
    (1.39m)
  • Low 5:02pm
    (-0.02m)
  • High 11:16pm
    (1.14m)
  • Low 4:51am
    (-0.07m)
  • High 11:43am
    (1.31m)
  • Low 5:57pm
    (0.09m)
7 day tide times for Jamestown

*These tide times are estimates based on the nearest accurate location (Castle Hill, Narragansett Bay, Rhode Island) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.