Water Temperature of Nantucket Sound in West Yarmouth, MA

Current Water Temperature

73.0°F

Measurement Time: Friday, July 31, 2026, 11:30 PM EDT

Temperature Locations

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Local Points of Interest

Atlantic Ocean

Nantucket Sound

Station Name: NANTUCKET SOUND
Station Type: Other
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet

Nearest Address:
973–1019 Great Island Rd
West Yarmouth, MA 02673
Barnstable County

GPS Coordinates: 41.493, -70.279

Nearby Water Temperatures

Childs River, Waquoit Village, MA (14.3 mi)
Nantucket Sound, Nantucket, MA (17.2 mi)
Woods Hole, Woods Hole, MA (20.4 mi)
Pleasant Bay, Chatham, MA (21.7 mi)
Herring River, Wellfleet, MA (32.2 mi)
Taunton River, Bridgewater, MA (46.4 mi)
Taunton River, Fall River, MA (48 mi)
Atlantic Ocean, Provincetown, MA (49.5 mi)
Mill River, Taunton, MA (50.4 mi)
Narragansett Bay, Newport, RI (54.2 mi)
Atlantic Ocean, New Shoreham, RI (57.1 mi)
Providence River, Barrington, RI (57.1 mi)
Great Harbor, North Kingstown, RI (58.8 mi)
Providence River, Providence, RI (61.9 mi)
Atlantic Ocean, Scituate, MA (62 mi)

Weather for West Yarmouth, Massachusetts

Current Weather

68.2°F
Clear
Clear
68.9°F
68.2°F
92%
SW 8.7 mph
15.7 mph
68.2°F
65.6°F
0 in
7%
6 mi
1014 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 79°F
L: 67°F
Sunny
Sun
H: 77°F
L: 70°F
Patchy rain nearby
Mon
H: 78°F
L: 72°F
Sunny
Tue
H: 74°F
L: 69°F
Patchy rain nearby
Wed
H: 77°F
L: 70°F

Air Quality

AQI: 1 - Good
PM2.5: 11.5 μg/m3
PM10: 13.6 μg/m3
Carbon Monoxide: 135 μg/m3
Nitrogen Dioxide: 5.1 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 116 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 12:47 AM
Sunset: 7:58 PM
Daylight: 14 hrs 23 mins
Moonrise: 9:27 PM
Moon Transit: 2:45 AM
Moonset: 8:35 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.9%

Best Times for Fishing or Hunting

Major Periods

2:15 AM - 4:45 AM
5:19 PM - 7:49 PM

Minor Periods

8:57 PM - 10:27 PM
8:05 AM - 9:35 AM

Action Rating: 3 out of 5

Rip Current Statement issued July 31 at 8:39AM EDT until July 31 at 11:00PM EDT by NWS Boston/Norton MA

Effective: Fri July 31, 2026, 8:39 AM
Expires: Fri July 31, 2026, 11:00 PM

* WHAT...Dangerous rip currents. * WHERE...Barnstable MA and Nantucket MA Counties. * WHEN...Through this evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.

Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.
Saturday, August 1, 2026

Weather Forecast

Sunny
79.2°F
67.1°F
73.1°F
81%
0 in
10%
0%
14.8 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 11.23 μg/m3
PM10: 14.2 μg/m3
Carbon Monoxide: 138.29 μg/m3
Nitrogen Dioxide: 4.41 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 110.46 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 12:47 AM
Sunset: 7:58 PM
Daylight: 14 hrs 23 mins
Moonrise: 9:27 PM
Moon Transit: 2:45 AM
Moonset: 8:35 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.9%

Best Times for Fishing or Hunting

Major Periods

2:15 AM - 4:45 AM
5:19 PM - 7:49 PM

Minor Periods

8:57 PM - 10:27 PM
8:05 AM - 9:35 AM

Action Rating: 3 out of 5

Sunday, August 2, 2026

Weather Forecast

Sunny
76.5°F
69.5°F
72.8°F
85%
0 in
13%
0%
13.2 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 9.07 μg/m3
PM10: 13.23 μg/m3
Carbon Monoxide: 105.96 μg/m3
Nitrogen Dioxide: 2.41 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 76.21 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:47 AM
Sunset: 7:57 PM
Daylight: 14 hrs 20 mins
Moonrise: 9:47 PM
Moon Transit: 6:50 PM
Moonset: 9:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.9%

Best Times for Fishing or Hunting

Major Periods

6:20 PM - 8:50 PM
6:20 PM - 8:50 PM

Minor Periods

9:17 PM - 10:47 PM
9:10 AM - 10:40 AM

Action Rating: 2 out of 5

Monday, August 3, 2026

Weather Forecast

Patchy rain nearby
77.7°F
71.6°F
73.3°F
91%
0.59 in
88%
0%
22.6 mph
3.9


Air Quality

AQI: 1 - Good
PM2.5: 4.14 μg/m3
PM10: 6.18 μg/m3
Carbon Monoxide: 104.33 μg/m3
Nitrogen Dioxide: 2.52 μg/m3
Sulphur Dioxide: 0.35 μg/m3
Ozone: 79.46 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 12:47 AM
Sunset: 7:56 PM
Daylight: 14 hrs 18 mins
Moonrise: 10:10 PM
Moon Transit: 4:11 AM
Moonset: 10:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.6%

Best Times for Fishing or Hunting

Major Periods

3:41 AM - 6:11 AM
6:46 PM - 9:16 PM

Minor Periods

9:40 PM - 11:10 PM
10:18 AM - 11:48 AM

Action Rating: 2 out of 5

Tuesday, August 4, 2026

Weather Forecast

Sunny
73.5°F
69.3°F
71.4°F
86%
0.86 in
81%
0%
11.9 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 6.66 μg/m3
PM10: 8.28 μg/m3
Carbon Monoxide: 116.72 μg/m3
Nitrogen Dioxide: 5.24 μg/m3
Sulphur Dioxide: 0.99 μg/m3
Ozone: 95.92 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:47 AM
Sunset: 7:55 PM
Daylight: 14 hrs 16 mins
Moonrise: 10:35 PM
Moon Transit: 4:57 AM
Moonset: 11:58 AM
Moon Phase: Last Quarter
Moon Illumination: 54.6%

Best Times for Fishing or Hunting

Major Periods

4:27 AM - 6:57 AM
7:34 PM - 10:04 PM

Minor Periods

10:05 PM - 11:35 PM
11:28 AM - 12:58 AM

Action Rating: 3 out of 5

Wednesday, August 5, 2026

Weather Forecast

Patchy rain nearby
77.3°F
69.7°F
73.3°F
87%
0 in
29%
0%
10.5 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 9.12 μg/m3
PM10: 10.62 μg/m3
Carbon Monoxide: 240.56 μg/m3
Nitrogen Dioxide: 5.08 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 95.67 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:47 AM
Sunset: 7:54 PM
Daylight: 14 hrs 14 mins
Moonrise: 11:04 PM
Moon Transit: 5:45 AM
Moonset: 1:11 PM
Moon Phase: Last Quarter
Moon Illumination: 43.2%

Best Times for Fishing or Hunting

Major Periods

5:15 AM - 7:45 AM
8:25 PM - 10:55 PM

Minor Periods

12:00 AM - 12:00 AM
12:41 AM - 2:11 PM

Action Rating: 3 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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