Water Temperature of Nantucket Sound in Nantucket, MA

Current Water Temperature

37.2°F

Measurement Time: Sunday, January 18, 2026, 1:30 PM EST

Today's Tides

Low: January 18, 4:58 AM, 0.6 ft
 High: January 18, 11:41 AM, 3.5 ft
Low: January 18, 5:55 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

36°F
Mist
Mist
33.6°F
39.7°F
89%
WNW 3.1 mph
5.3 mph
36.7°F
32°F
0 in
100%
4 mi
1016 mbar
1

Five Day Weather Forecast

Moderate rain
Sun
H: 41°F
L: 40°F
Heavy rain
Mon
H: 35°F
L: 31°F
Light snow
Tue
H: 33°F
L: 24°F
Overcast
Wed
H: 18°F
L: 14°F
Heavy snow
Thu
H: 34°F
L: 23°F

Air Quality

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 11:50 AM
Sunset: 4:40 PM
Daylight: 9 hrs 38 mins
Moonrise: 7:15 AM
Moon Transit: 11:47 AM
Moonset: 4:27 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

1:37 AM - 4:07 AM
11:17 AM - 1:47 PM

Minor Periods

3:57 PM - 5:27 PM
6:45 AM - 8:15 AM

Action Rating: 4 out of 5

Special Weather Statement issued January 18 at 5:11AM EST by NWS Boston/Norton MA

Effective: Sun January 18, 2026, 5:11 AM
Expires: Sun January 18, 2026, 9:00 AM

Temperatures have dropped into the 20s to near 30 early this morning. Light to calm winds with left over moisture from yesterday/s rain and snow has resulted in the formation of black ice. Although the focus is on the plowable snow that is coming today into tonight...motorists planning to travel before the snow arrives should be prepared for black ice. In addition...walkways may be icy for pedestrians as well.


Winter Weather Advisory issued January 18 at 12:55AM EST until January 19 at 7:00AM EST by NWS Boston/Norton MA

Effective: Sun January 18, 2026, 12:55 AM
Expires: Sun January 18, 2026, 2:00 PM

* WHAT...Snow expected. Total snow accumulations between 3 and 6 inches with localized 7 inch amounts possible. * WHERE...Southeast Massachusetts and Rhode Island. * WHEN...From 7 AM this morning to 7 AM EST Monday. * IMPACTS...Plan on slippery road conditions. Periods of snow develop Sunday morning and continue at times into Sunday afternoon. The heaviest of the snow will occur late Sunday afternoon and night...when snowfall rates may exceed 1 inch per hour. While the steadiest snow should be over by daybreak Monday... snow showers may linger into the Monday morning commute making for hazardous travel.

Slow down and use caution while traveling.


Winter Weather Advisory issued January 18 at 1:17PM EST until January 19 at 7:00AM EST by NWS Boston/Norton MA

Effective: Sun January 18, 2026, 1:17 PM
Expires: Mon January 19, 2026, 7:00 AM

* WHAT...Snow. Additional snow accumulations between 2 and 5 inches. * WHERE...Portions of southeastern Massachusetts and Rhode Island. * WHEN...Until 7 AM EST Monday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday morning commute.

Slow down and use caution while traveling.
Sunday, January 18, 2026

Weather Forecast

Moderate rain
41.1°F
39.5°F
40.2°F
80%
0.23 in
63%
0%
29.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 13.22 μg/m3
PM10: 19.69 μg/m3
Carbon Monoxide: 162.45 μg/m3
Nitrogen Dioxide: 2.4 μg/m3
Sulphur Dioxide: 1.93 μg/m3
Ozone: 73.38 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 11:50 AM
Sunset: 4:40 PM
Daylight: 9 hrs 38 mins
Moonrise: 7:15 AM
Moon Transit: 11:47 AM
Moonset: 4:27 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

1:37 AM - 4:07 AM
11:17 AM - 1:47 PM

Minor Periods

3:57 PM - 5:27 PM
6:45 AM - 8:15 AM

Action Rating: 4 out of 5

Monday, January 19, 2026

Weather Forecast

Heavy rain
34.7°F
31°F
35.4°F
86%
2.09 in
61%
20%
62.6 mph
0


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: 7:02 AM
Sun Transit: 11:51 AM
Sunset: 4:41 PM
Daylight: 9 hrs 39 mins
Moonrise: 7:47 AM
Moon Transit: 12:37 AM
Moonset: 5:34 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
12:07 AM - 2:37 PM

Minor Periods

5:04 PM - 6:34 PM
7:17 AM - 8:47 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Light snow
32.8°F
23.8°F
30.6°F
66%
0.03 in
74%
29%
33.8 mph
1


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: 7:01 AM
Sun Transit: 11:51 AM
Sunset: 4:42 PM
Daylight: 9 hrs 41 mins
Moonrise: 8:15 AM
Moon Transit: 1:24 PM
Moonset: 6:43 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

3:15 AM - 5:45 AM
12:54 AM - 3:24 PM

Minor Periods

6:13 PM - 7:43 PM
7:45 AM - 9:15 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Overcast
18.2°F
14.2°F
18.4°F
63%
0 in
0%
11%
34.2 mph
1


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: 7:01 AM
Sun Transit: 11:51 AM
Sunset: 4:44 PM
Daylight: 9 hrs 43 mins
Moonrise: 8:39 AM
Moon Transit: 2:09 PM
Moonset: 7:51 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

4:01 AM - 6:31 AM
1:39 PM - 4:09 PM

Minor Periods

7:21 PM - 8:51 PM
8:09 AM - 9:39 AM

Action Rating: 3 out of 5

Thursday, January 22, 2026

Weather Forecast

Heavy snow
33.7°F
22.5°F
27.4°F
77%
0.05 in
66%
49%
21.5 mph
1


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: 7:00 AM
Sun Transit: 11:52 AM
Sunset: 4:45 PM
Daylight: 9 hrs 45 mins
Moonrise: 9:00 AM
Moon Transit: 2:54 PM
Moonset: 9:00 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

4:46 AM - 7:16 AM
2:24 PM - 4:54 PM

Minor Periods

8:30 PM - 10:00 PM
8:30 AM - 10:00 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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