Water Temperature of Nantucket Sound in Nantucket, MA

Current Water Temperature

29.7°F

Measurement Time: Thursday, January 29, 2026, 7:30 PM EST

Today's Tides

Low: January 29, 1:36 AM, 0.2 ft
 High: January 29, 8:29 AM, 3.9 ft
Low: January 29, 2:45 PM, -0.3 ft
 High: January 29, 9:16 PM, 2.5 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

19.9°F
Clear
Clear
2.2°F
18.7°F
45%
WNW 26.2 mph
32.1 mph
6.2°F
6.4°F
0 in
0%
9 mi
1015 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 26°F
L: 15°F
Sunny
Fri
H: 21°F
L: 10°F
Partly Cloudy
Sat
H: 22°F
L: 15°F
Blowing snow
Sun
H: 33°F
L: 28°F
Light freezing rain
Mon
H: 32°F
L: 21°F

Air Quality

AQI: 1 - Good
PM2.5: 5.15 μg/m3
PM10: 5.55 μg/m3
Carbon Monoxide: 168.85 μg/m3
Nitrogen Dioxide: 5.95 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 11:53 AM
Sunset: 4:53 PM
Daylight: 9 hrs 59 mins
Moonrise: 12:59 AM
Moon Transit: 9:13 PM
Moonset: 4:21 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

10:56 AM - 1:26 PM
8:43 PM - 11:13 PM

Minor Periods

12:29 AM - 1:59 PM
3:51 AM - 5:21 AM

Action Rating: 2 out of 5

Winter Storm Watch issued January 29 at 12:28PM EST until February 2 at 4:00AM EST by NWS Boston/Norton MA

Effective: Thu January 29, 2026, 12:28 PM
Expires: Fri January 30, 2026, 3:15 AM

* WHAT...Heavy snow possible. Total snow accumulations 6 inches or more possible. Winds could gust as high as 55 mph. * WHERE...Barnstable MA, Dukes MA, and Nantucket MA Counties. * WHEN...From late Saturday night through late Sunday night. * IMPACTS...Travel could be very difficult. Strong winds could cause tree damage.

Monitor the latest forecasts for updates on this situation.


Coastal Flood Watch issued January 29 at 11:36AM EST until February 2 at 2:00PM EST by NWS Boston/Norton MA

Effective: Thu January 29, 2026, 11:36 AM
Expires: Fri January 30, 2026, 3:00 AM

* WHAT...Moderate coastal flooding is possible around high tide. Water could be as deep as 1 to 2 feet. * WHERE...Eastern Massachusetts coast, including Cape Cod, Marthas Vineyard, and Nantucket. * WHEN...From Sunday morning through Monday afternoon. * IMPACTS...Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure may be inundated. Vehicles left in flood prone areas may be flooded. * ADDITIONAL DETAILS...Debris may wash onto coastal roads from large breaking waves. Significant beach and dune erosion is likely, especially in those areas that have been made more vulnerable from recent storms.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Cold Weather Advisory issued January 29 at 11:21AM EST until January 30 at 11:00AM EST by NWS Boston/Norton MA

Effective: Thu January 29, 2026, 11:21 AM
Expires: Fri January 30, 2026, 3:00 AM

* WHAT...Very cold wind chills as low as 10 below expected. * WHERE...Barnstable MA County. * WHEN...From 7 PM this evening to 11 AM EST Friday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.
Thursday, January 29, 2026

Weather Forecast

Sunny
26.2°F
15.4°F
19.4°F
61%
0 in
0%
0%
28.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 6.01 μg/m3
PM10: 6.49 μg/m3
Carbon Monoxide: 204.45 μg/m3
Nitrogen Dioxide: 5.19 μg/m3
Sulphur Dioxide: 2.07 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 11:53 AM
Sunset: 4:53 PM
Daylight: 9 hrs 59 mins
Moonrise: 12:59 AM
Moon Transit: 9:13 PM
Moonset: 4:21 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

10:56 AM - 1:26 PM
8:43 PM - 11:13 PM

Minor Periods

12:29 AM - 1:59 PM
3:51 AM - 5:21 AM

Action Rating: 2 out of 5

Friday, January 30, 2026

Weather Forecast

Sunny
20.8°F
10.4°F
16.6°F
70%
0 in
0%
0%
31.8 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 3.65 μg/m3
PM10: 4.1 μg/m3
Carbon Monoxide: 169.33 μg/m3
Nitrogen Dioxide: 4.25 μg/m3
Sulphur Dioxide: 1.63 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 11:53 AM
Sunset: 4:55 PM
Daylight: 10 hrs 1 mins
Moonrise: 2:10 PM
Moon Transit: 10:16 PM
Moonset: 5:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.4%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 PM
12:00 AM - 12:00 AM

Minor Periods

1:40 PM - 3:10 PM
4:53 AM - 6:23 AM

Action Rating: 2 out of 5

Saturday, January 31, 2026

Weather Forecast

Partly Cloudy
22°F
15.3°F
18.3°F
78%
0 in
0%
0%
17.2 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 3.07 μg/m3
PM10: 3.47 μg/m3
Carbon Monoxide: 170.85 μg/m3
Nitrogen Dioxide: 4.85 μg/m3
Sulphur Dioxide: 1.71 μg/m3
Ozone: 70.92 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 11:53 AM
Sunset: 4:56 PM
Daylight: 10 hrs 3 mins
Moonrise: 3:27 PM
Moon Transit: 11:16 PM
Moonset: 6:14 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

1:03 PM - 3:33 PM
12:00 AM - 12:00 AM

Minor Periods

2:57 PM - 4:27 PM
5:44 AM - 7:14 AM

Action Rating: 4 out of 5

Sunday, February 1, 2026

Weather Forecast

Blowing snow
32.5°F
28.2°F
31.1°F
92%
1.67 in
79%
59%
41.4 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 4.27 μg/m3
PM10: 6.25 μg/m3
Carbon Monoxide: 159.39 μg/m3
Nitrogen Dioxide: 3 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 77.56 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 11:54 AM
Sunset: 4:57 PM
Daylight: 10 hrs 5 mins
Moonrise: 4:46 PM
Moon Transit: 12:00 AM
Moonset: 6:53 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:00 PM - 4:30 PM

Minor Periods

4:16 PM - 5:46 PM
6:23 AM - 7:53 AM

Action Rating: 5 out of 5

Monday, February 2, 2026

Weather Forecast

Light freezing rain
31.5°F
20.5°F
26.6°F
80%
0.01 in
76%
22%
31.8 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.17 μg/m3
PM10: 6.47 μg/m3
Carbon Monoxide: 148.18 μg/m3
Nitrogen Dioxide: 1.66 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 86.15 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 11:54 AM
Sunset: 4:58 PM
Daylight: 10 hrs 8 mins
Moonrise: 6:01 PM
Moon Transit: 12:11 AM
Moonset: 7:24 AM
Moon Phase: Full
Moon Illumination: 99.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:52 PM - 5:22 PM

Minor Periods

5:31 PM - 7:01 PM
6:54 AM - 8:24 AM

Action Rating: 5 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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