Water Temperature of Nantucket Sound in Nantucket, MA

Current Water Temperature

73.4°F

Measurement Time: Wednesday, July 1, 2026, 3:00 PM EDT

Today's Tides

 High: July 1, 1:35 AM, 3.5 ft
Low: July 1, 7:49 AM, 0.2 ft
 High: July 1, 2:24 PM, 2.6 ft
Low: July 1, 7:35 PM, 0.8 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

73°F
Sunny
Sunny
77°F
79.6°F
81%
SW 24.6 mph
38.2 mph
75.7°F
70.7°F
0 in
0%
9 mi
1016 mbar
6.7

Five Day Weather Forecast

Sunny
Wed
H: 78°F
L: 69°F
Sunny
Thu
H: 72°F
L: 71°F
Sunny
Fri
H: 76°F
L: 72°F
Sunny
Sat
H: 75°F
L: 73°F
Cloudy
Sun
H: 73°F
L: 71°F

Air Quality

AQI: 1 - Good
PM2.5: 18.3 μg/m3
PM10: 25.9 μg/m3
Carbon Monoxide: 102 μg/m3
Nitrogen Dioxide: 0.3 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 88 μg/m3

Astronomical

Sunrise: 5:11 AM
Sun Transit: 12:44 AM
Sunset: 8:18 PM
Daylight: 15 hrs 7 mins
Moonrise: 9:47 PM
Moon Transit: 1:45 AM
Moonset: 6:22 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:15 AM - 3:45 AM
4:23 PM - 6:53 PM

Minor Periods

9:17 PM - 10:47 PM
5:52 AM - 7:22 AM

Action Rating: 3 out of 5

Small Craft Advisory issued July 1 at 4:06AM EDT until July 3 at 1:00AM EDT by NWS Boston/Norton MA

Effective: Wed July 1, 2026, 4:06 AM
Expires: Wed July 1, 2026, 5:15 PM

* WHAT...Southwest winds 15 to 20 kt with gusts up to 25 kt and seas 4 to 6 feet expected. * WHERE...In Massachusetts coastal waters, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM and Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. * WHEN...Until 1 AM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Small Craft Advisory issued July 1 at 3:09AM EDT until July 3 at 1:00AM EDT by NWS Boston/Norton MA

Effective: Wed July 1, 2026, 3:09 AM
Expires: Wed July 1, 2026, 4:15 PM

* WHAT...Southwest winds 15 to 20 kt with gusts up to 25 kt and seas 4 to 6 feet expected. * WHERE...In Massachusetts coastal waters, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM and Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. * WHEN...Until 1 AM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Wednesday, July 1, 2026

Weather Forecast

Sunny
77.9°F
68.9°F
72.5°F
83%
0 in
12%
0%
28 mph
9.5


Air Quality

AQI: 2 - Moderate
PM2.5: 18.03 μg/m3
PM10: 25.11 μg/m3
Carbon Monoxide: 104.04 μg/m3
Nitrogen Dioxide: 0.44 μg/m3
Sulphur Dioxide: 0.27 μg/m3
Ozone: 89.25 μg/m3

Astronomical

Sunrise: 5:11 AM
Sun Transit: 12:44 AM
Sunset: 8:18 PM
Daylight: 15 hrs 7 mins
Moonrise: 9:47 PM
Moon Transit: 1:45 AM
Moonset: 6:22 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:15 AM - 3:45 AM
4:23 PM - 6:53 PM

Minor Periods

9:17 PM - 10:47 PM
5:52 AM - 7:22 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Sunny
72°F
70.6°F
71.1°F
92%
0.06 in
65%
0%
25.5 mph
9.6


Air Quality

AQI: 2 - Moderate
PM2.5: 15.98 μg/m3
PM10: 23.87 μg/m3
Carbon Monoxide: 100.88 μg/m3
Nitrogen Dioxide: 0.41 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 86.67 μg/m3

Astronomical

Sunrise: 5:11 AM
Sun Transit: 12:44 AM
Sunset: 8:17 PM
Daylight: 15 hrs 6 mins
Moonrise: 10:14 PM
Moon Transit: 2:32 AM
Moonset: 7:26 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:02 AM - 4:32 AM
5:10 PM - 7:40 PM

Minor Periods

9:44 PM - 11:14 PM
6:56 AM - 8:26 AM

Action Rating: 2 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
75.8°F
72.3°F
74.2°F
87%
0.02 in
43%
0%
22.4 mph
9.4


Air Quality

AQI: 2 - Moderate
PM2.5: 17.43 μg/m3
PM10: 24.23 μg/m3
Carbon Monoxide: 124.29 μg/m3
Nitrogen Dioxide: 1.31 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 136.38 μg/m3

Astronomical

Sunrise: 5:12 AM
Sun Transit: 12:44 AM
Sunset: 8:17 PM
Daylight: 15 hrs 5 mins
Moonrise: 10:38 PM
Moon Transit: 3:18 AM
Moonset: 8:31 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

2:48 AM - 5:18 AM
5:54 PM - 8:24 PM

Minor Periods

10:08 PM - 11:38 PM
8:01 AM - 9:31 AM

Action Rating: 4 out of 5

Saturday, July 4, 2026

Weather Forecast

Sunny
75.3°F
72.6°F
74.4°F
87%
0.11 in
67%
0%
17.2 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 11.56 μg/m3
PM10: 15.47 μg/m3
Carbon Monoxide: 141.67 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 0.64 μg/m3
Ozone: 121.33 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 12:44 AM
Sunset: 8:17 PM
Daylight: 15 hrs 4 mins
Moonrise: 11:00 PM
Moon Transit: 4:02 AM
Moonset: 9:36 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

3:32 AM - 6:02 AM
6:37 PM - 9:07 PM

Minor Periods

10:30 PM - 12:00 PM
9:06 AM - 10:36 AM

Action Rating: 2 out of 5

Sunday, July 5, 2026

Weather Forecast

Cloudy
73.2°F
70.5°F
72°F
93%
0.11 in
77%
0%
13 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 11.84 μg/m3
PM10: 15.36 μg/m3
Carbon Monoxide: 195.89 μg/m3
Nitrogen Dioxide: 3.32 μg/m3
Sulphur Dioxide: 0.99 μg/m3
Ozone: 118.11 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 12:45 AM
Sunset: 8:17 PM
Daylight: 15 hrs 4 mins
Moonrise: 11:20 PM
Moon Transit: 4:44 AM
Moonset: 10:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

4:14 AM - 6:44 AM
7:20 PM - 9:50 PM

Minor Periods

12:00 AM - 12:00 AM
10:11 AM - 11:41 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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