Water Temperature of Nantucket Sound in Nantucket, MA

Current Water Temperature

73.4°F

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 Ocean

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Nantucket Sound

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

75.9°F
Overcast
Conditions: Overcast
Humidity: 82%
Feels Like: 81.4°F
Wind: SW 16.8 mph
Wind Gusts: 33.8 mph
Pressure: 30.04 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 7.1

Five Day Weather Forecast

Overcast
Mon
H: 71°F
L: 68°F
Patchy rain nearby
Tue
H: 70°F
L: 69°F
Heavy rain
Wed
H: 65°F
L: 64°F
Moderate rain
Thu
H: 70°F
L: 64°F
Patchy rain nearby
Fri
H: 65°F
L: 64°F

Air Quality

PM2.5: 21.28 μg/m3
PM10: 33.86 μg/m3
Carbon Monoxide: 196.1 μg/m3
Nitrogen Dioxide: 0.93 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 47 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:45 AM
Sunset: 8:16 PM
Daylight: 15 hrs 1 mins
Moonrise: 6:03 PM
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 PM
12:00 AM - 12:00 AM

Minor Periods

5:33 PM - 7:03 PM
1:32 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.
Monday, July 7, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 69.4°F
Average Humidity: 98%
Chance of Rain: 0%
Wind: 18.1 mph
UV Index: 2.8

Air Quality

AQI: 2 - Moderate
PM2.5: 25.15 μg/m3
PM10: 36.77 μg/m3
Carbon Monoxide: 230.21 μg/m3
Nitrogen Dioxide: 0.84 μg/m3
Sulphur Dioxide: 0.64 μg/m3
Ozone: 61.44 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:45 AM
Sunset: 8:16 PM
Daylight: 15 hrs 1 mins
Moonrise: 6:03 PM
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 PM
12:00 AM - 12:00 AM

Minor Periods

5:33 PM - 7:03 PM
1:32 AM - 3:02 AM

Action Rating: 2 out of 5

Tuesday, July 8, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 69.6°F
Average Humidity: 98%
Chance of Rain: 79%
Wind: 21.5 mph
UV Index: 2.7

Air Quality

AQI: 2 - Moderate
PM2.5: 18.64 μg/m3
PM10: 29.62 μg/m3
Carbon Monoxide: 213.42 μg/m3
Nitrogen Dioxide: 0.82 μg/m3
Sulphur Dioxide: 0.35 μg/m3
Ozone: 66.32 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:45 AM
Sunset: 8:16 PM
Daylight: 15 hrs mins
Moonrise: 7:03 PM
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 PM
12:00 AM - 12:00 AM

Minor Periods

6:33 PM - 8:03 PM
2:13 AM - 3:43 AM

Action Rating: 3 out of 5

Wednesday, July 9, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 64.8°F
Average Humidity: 95%
Chance of Rain: 86%
Wind: 16.8 mph
UV Index: 1.3

Air Quality

AQI: 1 - Good
PM2.5: 13.07 μg/m3
PM10: 19.52 μg/m3
Carbon Monoxide: 356.16 μg/m3
Nitrogen Dioxide: 1.06 μg/m3
Sulphur Dioxide: 0.17 μg/m3
Ozone: 95.44 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:45 AM
Sunset: 8:15 PM
Daylight: 14 hrs 59 mins
Moonrise: 7:55 PM
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 AM
2:00 PM - 4:30 PM

Minor Periods

7:25 PM - 8:55 PM
3:02 AM - 4:32 AM

Action Rating: 3 out of 5

Thursday, July 10, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 66.4°F
Average Humidity: 95%
Chance of Rain: 79%
Wind: 19.5 mph
UV Index: 2.2

Air Quality

AQI: 1 - Good
PM2.5: 10.79 μg/m3
PM10: 13.7 μg/m3
Carbon Monoxide: 355.48 μg/m3
Nitrogen Dioxide: 1.79 μg/m3
Sulphur Dioxide: 0.26 μg/m3
Ozone: 111.54 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 12:45 AM
Sunset: 8:15 PM
Daylight: 14 hrs 58 mins
Moonrise: 8:40 PM
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 AM
2:55 PM - 5:25 PM

Minor Periods

8:10 PM - 9:40 PM
4:02 AM - 5:32 AM

Action Rating: 5 out of 5

Friday, July 11, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 64.3°F
Average Humidity: 88%
Chance of Rain: 89%
Wind: 17.4 mph
UV Index: 0.2

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 12:46 AM
Sunset: 8:14 PM
Daylight: 14 hrs 57 mins
Moonrise: 9:17 PM
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 AM
3:48 PM - 6:18 PM

Minor Periods

8:47 PM - 10:17 PM
5:09 AM - 6:39 AM

Action Rating: 4 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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