Water Temperature of Nantucket Sound in Nantucket, MA
Current Water Temperature
Measurement Time: Monday, July 7, 2025, 3:48 PM EDT
Today's Tides
Low: July 7, 4:27 AM, 0.45 ft
High: July 7, 10:47 AM, 2.43 ft
Low: July 7, 4:04 PM, 0.95 ft
High: July 7, 10:41 PM, 3.49 ft
Temperature Locations
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Local Points of Interest
Nantucket Island; Nantucket Terminal; Head of the Harbor; Atlantic OceanSponsored Content
Station Name: Nantucket Island
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 0 feet / 0 meters
Sensor Depth: -2.3 feet / -0.7 meters
Nearest Address:
20 Old N Wharf
Nantucket, MA 02554
Nantucket County
GPS Coordinates: 41.285278, -70.096390
Nearby Water Temperatures
Nantucket Sound, West Yarmouth, MA (17.2 mi)Pleasant Bay, Chatham, MA (28.9 mi)
Childs River, Waquoit Village, MA (30.5 mi)
Woods Hole, Woods Hole, MA (34.0 mi)
Herring River, Wellfleet, MA (44.7 mi)
Atlantic Ocean, New Shoreham, RI (57.9 mi)
Taunton River, Fall River, MA (62.4 mi)
Taunton River, Bridgewater, MA (63.1 mi)
Atlantic Ocean, Provincetown, MA (63.5 mi)
Narragansett Bay, Newport, RI (65.5 mi)
Mill River, Taunton, MA (66.6 mi)
Atlantic Ocean, Nantucket, MA (70.2 mi)
Providence River, Barrington, RI (71.1 mi)
Great Harbor, North Kingstown, RI (71.2 mi)
Providence River, Providence, RI (76.5 mi)
Weather for Nantucket, Massachusetts
Current Weather

Humidity: 82%
Feels Like: 81.4°F
Wind: SW 16.8 mph
Wind Gusts: 33.8 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 7.1
Five Day Weather Forecast

Mon
H: 71°F
L: 68°F

Tue
H: 70°F
L: 69°F

Wed
H: 65°F
L: 64°F

Thu
H: 70°F
L: 64°F

Fri
H: 65°F
L: 64°F
Air Quality
Nitrogen Dioxide: 0.93 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 47 μg/m3
Astronomical
Sun Transit: 12:45 AM
Sunset: 8:16 PM
Daylight: 15 hrs 1 mins
Moon Transit: 10:24 PM
Moonset: 2:02 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.7%
Best Times for Fishing or Hunting
Major Periods
12:13 AM - 2:43 PM12:00 AM - 12:00 AM
Minor Periods
5:33 PM - 7:03 PM1:32 AM - 3:02 AM
Action Rating: 2 out of 5
Heat Advisory issued July 7 at 1:23PM EDT until July 8 at 8:00PM EDT by NWS Boston/Norton MA
Effective: Mon July 7, 2025, 1:23 PM
Expires: Tue July 8, 2025, 6:00 AM
* WHAT...Heat index values up to 100 expected. * WHERE...In Massachusetts, Barnstable MA, Southern Bristol MA, and Southern Plymouth MA Counties. In Rhode Island, Bristol RI, Newport RI, and Washington RI Counties. * WHEN...From 11 AM to 8 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Heat Advisory issued July 7 at 1:23PM EDT until July 8 at 8:00PM EDT by NWS Boston/Norton MA
Effective: Mon July 7, 2025, 1:23 PM
Expires: Tue July 8, 2025, 6:00 AM
* WHAT...Heat index values up to 100. * WHERE...Portions of northern Connecticut, central, eastern, northeastern, southeastern, and western Massachusetts, and northern Rhode Island. * WHEN...Until 8 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Heat Advisory issued July 7 at 1:23PM EDT until July 8 at 8:00PM EDT by NWS Boston/Norton MA
Effective: Mon July 7, 2025, 1:23 PM
Expires: Tue July 8, 2025, 6:00 AM
* WHAT...Heat index values up to 100 expected. * WHERE...In Massachusetts, Barnstable MA, Southern Bristol MA, and Southern Plymouth MA Counties. In Rhode Island, Bristol RI, Newport RI, and Washington RI Counties. * WHEN...From 11 AM to 8 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Heat Advisory issued July 7 at 1:23PM EDT until July 8 at 8:00PM EDT by NWS Boston/Norton MA
Effective: Mon July 7, 2025, 1:23 PM
Expires: Tue July 8, 2025, 6:00 AM
* WHAT...Heat index values up to 100 expected. * WHERE...In Massachusetts, Barnstable MA, Southern Bristol MA, and Southern Plymouth MA Counties. In Rhode Island, Bristol RI, Newport RI, and Washington RI Counties. * WHEN...From 11 AM to 8 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Weather Forecast
Average Temperature: 69.4°F
Average Humidity: 98%
Wind: 18.1 mph
UV Index: 2.8
Air Quality
Nitrogen Dioxide: 0.84 μg/m3
Sulphur Dioxide: 0.64 μg/m3
Ozone: 61.44 μg/m3
Astronomical
Sun Transit: 12:45 AM
Sunset: 8:16 PM
Daylight: 15 hrs 1 mins
Moon Transit: 10:24 PM
Moonset: 2:02 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.7%
Best Times for Fishing or Hunting
Major Periods
12:13 AM - 2:43 PM12:00 AM - 12:00 AM
Minor Periods
5:33 PM - 7:03 PM1:32 AM - 3:02 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 69.6°F
Average Humidity: 98%
Wind: 21.5 mph
UV Index: 2.7
Air Quality
Nitrogen Dioxide: 0.82 μg/m3
Sulphur Dioxide: 0.35 μg/m3
Ozone: 66.32 μg/m3
Astronomical
Sun Transit: 12:45 AM
Sunset: 8:16 PM
Daylight: 15 hrs mins
Moon Transit: 11:17 PM
Moonset: 2:43 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.8%
Best Times for Fishing or Hunting
Major Periods
1:05 PM - 3:35 PM12:00 AM - 12:00 AM
Minor Periods
6:33 PM - 8:03 PM2:13 AM - 3:43 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 64.8°F
Average Humidity: 95%
Wind: 16.8 mph
UV Index: 1.3
Air Quality
Nitrogen Dioxide: 1.06 μg/m3
Sulphur Dioxide: 0.17 μg/m3
Ozone: 95.44 μg/m3
Astronomical
Sun Transit: 12:45 AM
Sunset: 8:15 PM
Daylight: 14 hrs 59 mins
Moon Transit: 12:00 AM
Moonset: 3:32 AM
Moon Phase: Full
Moon Illumination: 99.6%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:00 PM - 4:30 PM
Minor Periods
7:25 PM - 8:55 PM3:02 AM - 4:32 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 66.4°F
Average Humidity: 95%
Wind: 19.5 mph
UV Index: 2.2
Air Quality
Nitrogen Dioxide: 1.79 μg/m3
Sulphur Dioxide: 0.26 μg/m3
Ozone: 111.54 μg/m3
Astronomical
Sun Transit: 12:45 AM
Sunset: 8:15 PM
Daylight: 14 hrs 58 mins
Moon Transit: 12:12 AM
Moonset: 4:32 AM
Moon Phase: Full
Moon Illumination: 99.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:55 PM - 5:25 PM
Minor Periods
8:10 PM - 9:40 PM4:02 AM - 5:32 AM
Action Rating: 5 out of 5
Weather Forecast
Average Temperature: 64.3°F
Average Humidity: 88%
Wind: 17.4 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 12:46 AM
Sunset: 8:14 PM
Daylight: 14 hrs 57 mins
Moon Transit: 1:06 AM
Moonset: 5:39 AM
Moon Phase: Full
Moon Illumination: 97.4%
Best Times for Fishing or Hunting
Major Periods
12:36 AM - 3:06 AM3:48 PM - 6:18 PM
Minor Periods
8:47 PM - 10:17 PM5:09 AM - 6:39 AM
Action Rating: 4 out of 5