Water Temperature of Nantucket Sound in Nantucket, MA

Current Water Temperature

73.4°F

Measurement Time: Wednesday, July 15, 2026, 2:54 PM EDT

Today's Tides

 High: July 15, 1:03 AM, 4.4 ft
Low: July 15, 7:10 AM, -0.4 ft
 High: July 15, 1:50 PM, 3.1 ft
Low: July 15, 7:08 PM, 0.1 ft

Temperature Locations

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Local Points of Interest

Nantucket Island; Nantucket Terminal; Head of the Harbor; Atlantic Ocean

Nantucket Sound

Station Name: Nantucket Island
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -2 feet

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 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

80.1°F
Sunny
Sunny
84.1°F
90.7°F
71%
WSW 23.3 mph
48.9 mph
83.7°F
73.8°F
0 in
0%
9 mi
1007 mbar
7.4

Five Day Weather Forecast

Sunny
Wed
H: 84°F
L: 73°F
Sunny
Thu
H: 76°F
L: 70°F
Sunny
Fri
H: 73°F
L: 71°F
Partly Cloudy
Sat
H: 74°F
L: 68°F
Sunny
Sun
H: 77°F
L: 72°F

Air Quality

AQI: 1 - Good
PM2.5: 15.7 μg/m3
PM10: 20.1 μg/m3
Carbon Monoxide: 148 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 173 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:46 AM
Sunset: 8:12 PM
Daylight: 14 hrs 52 mins
Moonrise: 6:33 AM
Moon Transit: 2:05 PM
Moonset: 9:23 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

3:52 AM - 6:22 AM
1:35 PM - 4:05 PM

Minor Periods

8:53 PM - 10:23 PM
6:03 AM - 7:33 AM

Action Rating: 3 out of 5

Small Craft Advisory issued July 15 at 12:24AM EDT until July 15 at 8:00PM EDT by NWS Boston/Norton MA

Effective: Wed July 15, 2026, 12:24 AM
Expires: Wed July 15, 2026, 8:00 PM

* WHAT...West winds 15 to 25 kt and seas 3 to 5 feet. * WHERE...In Massachusetts coastal waters, Nantucket Sound, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound and Block Island Sound. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Wednesday, July 15, 2026

Weather Forecast

Sunny
84°F
72.5°F
77.6°F
71%
0.01 in
17%
0%
31.1 mph
8.5


Air Quality

AQI: 2 - Moderate
PM2.5: 16.6 μg/m3
PM10: 22.03 μg/m3
Carbon Monoxide: 151.46 μg/m3
Nitrogen Dioxide: 2.49 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 141.71 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:46 AM
Sunset: 8:12 PM
Daylight: 14 hrs 52 mins
Moonrise: 6:33 AM
Moon Transit: 2:05 PM
Moonset: 9:23 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

3:52 AM - 6:22 AM
1:35 PM - 4:05 PM

Minor Periods

8:53 PM - 10:23 PM
6:03 AM - 7:33 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
75.7°F
70.3°F
74°F
73%
0 in
7%
0%
23 mph
7.7


Air Quality

AQI: 2 - Moderate
PM2.5: 18.1 μg/m3
PM10: 23.54 μg/m3
Carbon Monoxide: 135.38 μg/m3
Nitrogen Dioxide: 2.98 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 110.13 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:46 AM
Sunset: 8:12 PM
Daylight: 14 hrs 51 mins
Moonrise: 7:52 AM
Moon Transit: 2:58 PM
Moonset: 9:52 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

4:47 AM - 7:17 AM
2:28 PM - 4:58 PM

Minor Periods

9:22 PM - 10:52 PM
7:22 AM - 8:52 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
73.4°F
71.2°F
72°F
59%
0 in
4%
0%
16.8 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 6.98 μg/m3
PM10: 10.15 μg/m3
Carbon Monoxide: 118.67 μg/m3
Nitrogen Dioxide: 1.07 μg/m3
Sulphur Dioxide: 0.48 μg/m3
Ozone: 90.5 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 12:46 AM
Sunset: 8:11 PM
Daylight: 14 hrs 49 mins
Moonrise: 9:07 AM
Moon Transit: 3:47 PM
Moonset: 10:16 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

5:38 AM - 8:08 AM
3:17 PM - 5:47 PM

Minor Periods

9:46 PM - 11:16 PM
8:37 AM - 10:07 AM

Action Rating: 3 out of 5

Saturday, July 18, 2026

Weather Forecast

Partly Cloudy
73.6°F
68°F
71.3°F
81%
0.15 in
72%
0%
28.9 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 12.96 μg/m3
PM10: 20.55 μg/m3
Carbon Monoxide: 117.03 μg/m3
Nitrogen Dioxide: 0.63 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 83.5 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:46 AM
Sunset: 8:10 PM
Daylight: 14 hrs 48 mins
Moonrise: 10:18 AM
Moon Transit: 4:33 PM
Moonset: 10:37 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

6:24 AM - 8:54 AM
4:03 PM - 6:33 PM

Minor Periods

10:07 PM - 11:37 PM
9:48 AM - 11:18 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
76.5°F
72.3°F
73.6°F
83%
0.03 in
49%
0%
31.3 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 10.86 μg/m3
PM10: 17.24 μg/m3
Carbon Monoxide: 153.78 μg/m3
Nitrogen Dioxide: 0.59 μg/m3
Sulphur Dioxide: 0.28 μg/m3
Ozone: 84.89 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:46 AM
Sunset: 8:09 PM
Daylight: 14 hrs 46 mins
Moonrise: 11:25 AM
Moon Transit: 5:16 PM
Moonset: 10:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

7:09 AM - 9:39 AM
4:46 PM - 7:16 PM

Minor Periods

10:28 PM - 11:58 PM
10:55 AM - 12:25 AM

Action Rating: 2 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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