Water Temperature of Nantucket Sound in West Yarmouth, MA
Current Water Temperature
Measurement Time: Friday, July 25, 2025, 3:20 PM EDT
Temperature Locations
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Local Points of Interest
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Station Name: NANTUCKET SOUND
Station Type: Other
Data Source: National Data Buoy Center
Elevation Above Sea Level: 0 feet / 0 meters
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 (48.0 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 (62.0 mi)
Weather for West Yarmouth, Massachusetts
Current Weather

Humidity: 67%
Feels Like: 93.3°F
Wind: SW 17.4 mph
Wind Gusts: 29.1 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 4
Five Day Weather Forecast

Fri
H: 86°F
L: 72°F

Sat
H: 76°F
L: 68°F

Sun
H: 73°F
L: 68°F

Mon
H: 79°F
L: 68°F

Tue
H: 81°F
L: 69°F
Air Quality
Nitrogen Dioxide: 20.91 μg/m3
Sulphur Dioxide: 4.81 μg/m3
Ozone: 139 μg/m3
Astronomical
Sun Transit: 12:47 AM
Sunset: 8:05 PM
Daylight: 14 hrs 36 mins
Moon Transit: 1:39 PM
Moonset: 8:59 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
3:26 AM - 5:56 AM1:09 PM - 3:39 PM
Minor Periods
8:29 PM - 9:59 PM5:37 AM - 7:07 AM
Action Rating: 6 out of 5
Severe Thunderstorm Watch issued July 25 at 1:43PM EDT until July 25 at 9:00PM EDT by NWS Boston/Norton MA
Effective: Fri July 25, 2025, 1:43 PM
Expires: Fri July 25, 2025, 9:00 PM
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 542 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN CONNECTICUT THIS WATCH INCLUDES 3 COUNTIES IN NORTHERN CONNECTICUT HARTFORD TOLLAND WINDHAM IN MASSACHUSETTS THIS WATCH INCLUDES 10 COUNTIES IN CENTRAL MASSACHUSETTS WORCESTER IN EASTERN MASSACHUSETTS NORFOLK SUFFOLK IN SOUTHEASTERN MASSACHUSETTS BARNSTABLE BRISTOL DUKES NANTUCKET PLYMOUTH IN WESTERN MASSACHUSETTS HAMPDEN HAMPSHIRE IN RHODE ISLAND THIS WATCH INCLUDES 5 COUNTIES IN NORTHERN RHODE ISLAND BRISTOL KENT PROVIDENCE IN SOUTHERN RHODE ISLAND NEWPORT WASHINGTON THIS INCLUDES THE CITIES OF BLOCK ISLAND, BOSTON, BRISTOL, BROCKTON, CHATHAM, FALL RIVER, FALMOUTH, FITCHBURG, FOXBOROUGH, HARTFORD, NANTUCKET, NEW BEDFORD, NEWPORT, NORTHAMPTON, PLYMOUTH, PROVIDENCE, PROVINCETOWN, PUTNAM, QUINCY, SPRINGFIELD, TAUNTON, UNION, VERNON, VINEYARD HAVEN, WARWICK, WESTERLY, WILLIMANTIC, AND WORCESTER.
Severe Thunderstorm Watch issued July 25 at 1:43PM EDT until July 25 at 9:00PM EDT by NWS Boston/Norton MA
Effective: Fri July 25, 2025, 1:43 PM
Expires: Fri July 25, 2025, 9:00 PM
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 542 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN CONNECTICUT THIS WATCH INCLUDES 3 COUNTIES IN NORTHERN CONNECTICUT HARTFORD TOLLAND WINDHAM IN MASSACHUSETTS THIS WATCH INCLUDES 10 COUNTIES IN CENTRAL MASSACHUSETTS WORCESTER IN EASTERN MASSACHUSETTS NORFOLK SUFFOLK IN SOUTHEASTERN MASSACHUSETTS BARNSTABLE BRISTOL DUKES NANTUCKET PLYMOUTH IN WESTERN MASSACHUSETTS HAMPDEN HAMPSHIRE IN RHODE ISLAND THIS WATCH INCLUDES 5 COUNTIES IN NORTHERN RHODE ISLAND BRISTOL KENT PROVIDENCE IN SOUTHERN RHODE ISLAND NEWPORT WASHINGTON THIS INCLUDES THE CITIES OF BLOCK ISLAND, BOSTON, BRISTOL, BROCKTON, CHATHAM, FALL RIVER, FALMOUTH, FITCHBURG, FOXBOROUGH, HARTFORD, NANTUCKET, NEW BEDFORD, NEWPORT, NORTHAMPTON, PLYMOUTH, PROVIDENCE, PROVINCETOWN, PUTNAM, QUINCY, SPRINGFIELD, TAUNTON, UNION, VERNON, VINEYARD HAVEN, WARWICK, WESTERLY, WILLIMANTIC, AND WORCESTER.
Severe Thunderstorm Watch issued July 25 at 1:43PM EDT until July 25 at 9:00PM EDT by NWS Boston/Norton MA
Effective: Fri July 25, 2025, 1:43 PM
Expires: Fri July 25, 2025, 9:00 PM
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 542 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN CONNECTICUT THIS WATCH INCLUDES 3 COUNTIES IN NORTHERN CONNECTICUT HARTFORD TOLLAND WINDHAM IN MASSACHUSETTS THIS WATCH INCLUDES 10 COUNTIES IN CENTRAL MASSACHUSETTS WORCESTER IN EASTERN MASSACHUSETTS NORFOLK SUFFOLK IN SOUTHEASTERN MASSACHUSETTS BARNSTABLE BRISTOL DUKES NANTUCKET PLYMOUTH IN WESTERN MASSACHUSETTS HAMPDEN HAMPSHIRE IN RHODE ISLAND THIS WATCH INCLUDES 5 COUNTIES IN NORTHERN RHODE ISLAND BRISTOL KENT PROVIDENCE IN SOUTHERN RHODE ISLAND NEWPORT WASHINGTON THIS INCLUDES THE CITIES OF BLOCK ISLAND, BOSTON, BRISTOL, BROCKTON, CHATHAM, FALL RIVER, FALMOUTH, FITCHBURG, FOXBOROUGH, HARTFORD, NANTUCKET, NEW BEDFORD, NEWPORT, NORTHAMPTON, PLYMOUTH, PROVIDENCE, PROVINCETOWN, PUTNAM, QUINCY, SPRINGFIELD, TAUNTON, UNION, VERNON, VINEYARD HAVEN, WARWICK, WESTERLY, WILLIMANTIC, AND WORCESTER.
Heat Advisory issued July 25 at 5:50AM EDT until July 25 at 8:00PM EDT by NWS Boston/Norton MA
Effective: Fri July 25, 2025, 5:50 AM
Expires: Fri July 25, 2025, 8:00 PM
* WHAT...Heat index values up to 103. * WHERE...Portions of northern Connecticut, central, eastern, northeastern, southeastern, and western Massachusetts, and northern Rhode Island. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses such as heat exhaustion and heat stroke if precautions are not taken.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Heat Advisory issued July 25 at 5:50AM EDT until July 25 at 8:00PM EDT by NWS Boston/Norton MA
Effective: Fri July 25, 2025, 5:50 AM
Expires: Fri July 25, 2025, 8:00 PM
* WHAT...Heat index values up to 103. * WHERE...Portions of northern Connecticut, central, eastern, northeastern, southeastern, and western Massachusetts, and northern Rhode Island. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses such as heat exhaustion and heat stroke if precautions are not taken.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Weather Forecast
Average Temperature: 77.6°F
Average Humidity: 84%
Wind: 18.1 mph
UV Index: 2.4
Air Quality
Nitrogen Dioxide: 7.08 μg/m3
Sulphur Dioxide: 2.99 μg/m3
Ozone: 116.96 μg/m3
Astronomical
Sun Transit: 12:47 AM
Sunset: 8:05 PM
Daylight: 14 hrs 36 mins
Moon Transit: 1:39 PM
Moonset: 8:59 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
3:26 AM - 5:56 AM1:09 PM - 3:39 PM
Minor Periods
8:29 PM - 9:59 PM5:37 AM - 7:07 AM
Action Rating: 6 out of 5
Weather Forecast
Average Temperature: 72.8°F
Average Humidity: 67%
Wind: 13.9 mph
UV Index: 2.4
Air Quality
Nitrogen Dioxide: 9.54 μg/m3
Sulphur Dioxide: 2.04 μg/m3
Ozone: 95.12 μg/m3
Astronomical
Sun Transit: 12:47 AM
Sunset: 8:04 PM
Daylight: 14 hrs 34 mins
Moon Transit: 2:28 PM
Moonset: 9:23 PM
Moon Phase: New
Moon Illumination: 0.7%
Best Times for Fishing or Hunting
Major Periods
4:17 AM - 6:47 AM1:58 PM - 4:28 PM
Minor Periods
8:53 PM - 10:23 PM6:49 AM - 8:19 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 70.1°F
Average Humidity: 79%
Wind: 13.2 mph
UV Index: 0.9
Air Quality
Nitrogen Dioxide: 8.62 μg/m3
Sulphur Dioxide: 1.59 μg/m3
Ozone: 83.6 μg/m3
Astronomical
Sun Transit: 12:47 AM
Sunset: 8:03 PM
Daylight: 14 hrs 32 mins
Moon Transit: 3:12 PM
Moonset: 9:45 PM
Moon Phase: New
Moon Illumination: 3.8%
Best Times for Fishing or Hunting
Major Periods
5:03 AM - 7:33 AM2:42 PM - 5:12 PM
Minor Periods
9:15 PM - 10:45 PM7:59 AM - 9:29 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 72.3°F
Average Humidity: 88%
Wind: 11.6 mph
UV Index: 1.5
Air Quality
Nitrogen Dioxide: 8.78 μg/m3
Sulphur Dioxide: 1.49 μg/m3
Ozone: 83.8 μg/m3
Astronomical
Sun Transit: 12:47 AM
Sunset: 8:02 PM
Daylight: 14 hrs 30 mins
Moon Transit: 3:54 PM
Moonset: 10:04 PM
Moon Phase: Waxing Crescent
Moon Illumination: 9.3%
Best Times for Fishing or Hunting
Major Periods
5:46 AM - 8:16 AM3:24 PM - 5:54 PM
Minor Periods
9:34 PM - 11:04 PM9:04 AM - 10:34 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 74.8°F
Average Humidity: 80%
Wind: 16.3 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 7.17 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 76.08 μg/m3
Astronomical
Sun Transit: 12:47 AM
Sunset: 8:01 PM
Daylight: 14 hrs 28 mins
Moon Transit: 4:35 PM
Moonset: 10:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 16.9%
Best Times for Fishing or Hunting
Major Periods
6:27 AM - 8:57 AM4:05 PM - 6:35 PM
Minor Periods
9:53 PM - 11:23 PM10:07 AM - 11:37 AM
Action Rating: 2 out of 5