Surf Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
183
FZUS51 KBOX 210810
SRFBOX
Surf Zone Forecast
National Weather Service Boston/Norton MA
410 AM EDT Tue Jul 21 2026
MAZ022-212200-
Barnstable MA-
Including the beaches of Chatham, Eastham, and Provincetown
410 AM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.TODAY...
Rip Current Risk*...
East Coast...............Moderate.
Surf Height...
East Coast...............Around 3 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...
East Coast...............In the mid 60s.
Weather.....................Mostly cloudy.
High Temperature............In the upper 70s.
Winds.......................South winds 10 to 15 mph.
Tides...
Nauset Beach.............Low 0.5 feet (MLLW) 10:45 AM EDT.
High 4.3 feet (MLLW) 05:01 PM EDT.
Hyannisport..............High 3.3 feet (MLLW) 06:38 AM EDT.
Low 0.6 feet (MLLW) 11:55 AM EDT.
Barnstable Harbor........Low 1.1 feet (MLLW) 11:58 AM EDT.
High 9.7 feet (MLLW) 05:59 PM EDT.
.WEDNESDAY...
Rip Current Risk*...
East Coast...............Moderate.
Surf Height...
East Coast...............6 to 9 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy until 5 PM, then mostly
sunny. Showers likely with isolated
thunderstorms.
High Temperature............In the upper 70s.
Winds.......................Southwest winds around 20 mph.
Tides...
Nauset Beach.............Low 0.7 feet (MLLW) 11:37 AM EDT.
High 4.2 feet (MLLW) 05:54 PM EDT.
Hyannisport..............High 3.1 feet (MLLW) 07:37 AM EDT.
Low 0.8 feet (MLLW) 12:41 PM EDT.
Barnstable Harbor........High 8.7 feet (MLLW) 06:32 AM EDT.
Low 1.6 feet (MLLW) 12:50 PM EDT.
.THURSDAY...Surf height 4 to 8 feet. Mostly sunny. A slight chance of
showers. Highs in the lower 70s. North winds around 10 mph.
.FRIDAY...Surf height 3 to 4 feet. Sunny. Highs in the lower 70s.
Northeast winds around 5 mph.
.SATURDAY...Surf height around 3 feet. Mostly sunny. Highs in the
lower 70s. East winds around 5 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
MAZ024-212200-
Nantucket MA-
Including the beaches of Nantucket
410 AM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.TODAY...
Rip Current Risk*...
East Coast...............Moderate.
South Coast..............Moderate.
Surf Height...
East Coast...............Around 3 feet.
South Coast..............Around 3 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...
East Coast...............In the mid 60s.
South Coast..............In the mid 60s.
Weather.....................Partly sunny.
High Temperature............In the upper 70s.
Winds.......................Southeast winds 10 to 15 mph.
Tides...
Nantucket................High 3.0 feet (MLLW) 06:37 AM EDT.
Low 0.5 feet (MLLW) 12:10 PM EDT.
Great Point..............High 2.9 feet (MLLW) 06:06 AM EDT.
Low 0.4 feet (MLLW) 11:56 AM EDT.
.WEDNESDAY...
Rip Current Risk*...
East Coast...............Moderate.
South Coast..............Moderate.
Surf Height...
East Coast...............7 to 11 feet.
South Coast..............8 to 11 feet.
Thunderstorm Potential**....Moderate.
Weather.....................Mostly cloudy. Showers and a chance of
thunderstorms.
High Temperature............In the upper 70s.
Winds.......................Windy. Southwest winds 25 to 30 mph.
Tides...
Nantucket................High 2.8 feet (MLLW) 07:34 AM EDT.
Low 0.7 feet (MLLW) 12:59 PM EDT.
Great Point..............High 2.8 feet (MLLW) 07:04 AM EDT.
Low 0.5 feet (MLLW) 12:48 PM EDT.
.THURSDAY...Surf height 7 to 10 feet. Partly sunny. A chance of
showers. Highs in the mid 70s. North winds around 10 mph.
.FRIDAY...Surf height around 4 feet. Sunny. A slight chance of
showers. Highs in the mid 70s. Northeast winds around 10 mph.
.SATURDAY...Surf height around 3 feet. Mostly sunny. A slight chance
of showers. Highs in the lower 70s. East winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
MAZ023-212200-
Dukes MA-
Including the beaches of Edgartown and Aquinnah
410 AM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................3 to 4 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...........In the upper 60s.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............In the upper 70s.
Winds.......................South winds 15 to 20 mph.
Tides...
Squibnocket Point........Low 0.5 feet (MLLW) 06:56 AM EDT.
High 3.1 feet (MLLW) 01:36 PM EDT.
.WEDNESDAY...
Rip Current Risk*...........Moderate.
Surf Height.................8 to 10 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy. A chance of showers and
a slight chance of thunderstorms.
High Temperature............In the upper 70s.
Winds.......................Breezy. Southwest winds around 25 mph.
Tides...
Squibnocket Point........Low 0.6 feet (MLLW) 07:47 AM EDT.
High 2.9 feet (MLLW) 02:28 PM EDT.
.THURSDAY...Surf height 5 to 9 feet. Mostly sunny. A chance of
showers. Highs in the mid 70s. North winds around 10 mph.
.FRIDAY...Surf height 3 to 4 feet. Sunny. Highs in the mid 70s.
Northeast winds around 10 mph.
.SATURDAY...Surf height around 3 feet. Mostly sunny. A slight chance
of showers. Highs in the lower 70s. East winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
MAZ020-212200-
Southern Bristol MA-
Including the beaches of Westport, Dartmouth, and New Bedford
410 AM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................3 to 4 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...........In the upper 60s.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............In the upper 70s.
Winds.......................South winds 15 to 20 mph.
Tides...
Westport Harbor..........Low 0.5 feet (MLLW) 07:31 AM EDT.
High 3.2 feet (MLLW) 02:30 PM EDT.
.WEDNESDAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 9 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy until 5 PM, then mostly
sunny. Showers likely and a slight
chance of thunderstorms.
High Temperature............In the upper 70s.
Winds.......................Southwest winds around 20 mph.
Tides...
Westport Harbor..........Low 0.6 feet (MLLW) 08:22 AM EDT.
High 3.0 feet (MLLW) 03:22 PM EDT.
.THURSDAY...Surf height 6 to 8 feet. Mostly sunny. Highs in the upper
70s. Northwest winds around 10 mph.
.FRIDAY...Surf height 3 to 4 feet. Sunny. Highs in the upper 70s.
East winds around 5 mph.
.SATURDAY...Surf height around 3 feet. Mostly sunny. Highs in the mid
70s. East winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
RIZ007-212200-
Newport RI-
Including the beaches of Newport, Middletown, and Little Compton
410 AM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................3 to 4 feet.
Thunderstorm Potential**....Low.
UV Index**..................High.
Water Temperature...........In the upper 60s.
Weather.....................Mostly cloudy. A chance of showers and
a slight chance of thunderstorms.
High Temperature............In the upper 70s.
Winds.......................South winds 15 to 20 mph.
Tides...
Newport..................Low 0.6 feet (MLLW) 06:58 AM EDT.
High 3.7 feet (MLLW) 02:21 PM EDT.
.WEDNESDAY...
Rip Current Risk*...........Moderate.
Surf Height.................7 to 10 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy. A chance of showers and
a slight chance of thunderstorms.
High Temperature............In the upper 70s.
Winds.......................Southwest winds around 20 mph.
Tides...
Newport..................Low 0.7 feet (MLLW) 07:49 AM EDT.
High 3.5 feet (MLLW) 03:13 PM EDT.
.THURSDAY...Surf height 5 to 9 feet. Sunny. Highs in the mid 70s.
Northwest winds around 10 mph.
.FRIDAY...Surf height 3 to 4 feet. Sunny. Highs in the mid 70s. East
winds around 10 mph.
.SATURDAY...Surf height around 3 feet. Mostly sunny. Highs in the mid
70s. East winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
RIZ006-212200-
Washington RI-
Including the beaches of Narragansett, Charlestown, and Westerly
410 AM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................3 to 4 feet.
Thunderstorm Potential**....Moderate.
UV Index**..................High.
Water Temperature...........Around 70.
Weather.....................Mostly cloudy. Showers likely and a
chance of thunderstorms.
High Temperature............In the mid 70s.
Winds.......................Southeast winds 10 to 15 mph.
Tides...
Watch Hill Point.........Low 0.4 feet (MLLW) 08:14 AM EDT.
High 2.8 feet (MLLW) 03:02 PM EDT.
Point Judith (Harbor)....Low 0.4 feet (MLLW) 07:57 AM EDT.
High 3.2 feet (MLLW) 02:29 PM EDT.
Narragansett Pier........Low 0.5 feet (MLLW) 07:09 AM EDT.
High 3.4 feet (MLLW) 02:10 PM EDT.
.WEDNESDAY...
Rip Current Risk*...........Moderate.
Surf Height.................7 to 10 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy. Showers likely and a
slight chance of thunderstorms.
High Temperature............In the upper 70s.
Winds.......................Southwest winds around 15 mph.
Tides...
Watch Hill Point.........Low 0.5 feet (MLLW) 09:05 AM EDT.
High 2.6 feet (MLLW) 03:54 PM EDT.
Point Judith (Harbor)....Low 0.6 feet (MLLW) 08:37 AM EDT.
High 3.1 feet (MLLW) 03:19 PM EDT.
Narragansett Pier........Low 0.7 feet (MLLW) 08:00 AM EDT.
High 3.2 feet (MLLW) 03:02 PM EDT.
.THURSDAY...Surf height 5 to 8 feet. Sunny. Highs in the upper 70s.
Northwest winds around 5 mph.
.FRIDAY...Surf height 3 to 4 feet. Sunny. Highs in the upper 70s.
East winds around 5 mph.
.SATURDAY...Surf height around 3 feet. Mostly sunny. Highs in the mid
70s. East winds around 5 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
RIZ008-212200-
Block Island RI-
Including the beaches of Block Island
410 AM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................3 to 4 feet.
Thunderstorm Potential**....Moderate.
UV Index**..................High.
Water Temperature...........Around 70.
Weather.....................Partly sunny. Showers likely and a
chance of thunderstorms.
High Temperature............In the mid 70s.
Winds.......................Southeast winds 15 to 20 mph.
Tides...
Block Island (Old Harbor)Low 0.4 feet (MLLW) 07:14 AM EDT.
High 3.0 feet (MLLW) 02:07 PM EDT.
.WEDNESDAY...
Rip Current Risk*...........High.
Surf Height.................8 to 9 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy until 3 PM, then mostly
sunny. Showers likely and a slight
chance of thunderstorms.
High Temperature............In the mid 70s.
Winds.......................Southwest winds around 20 mph.
Tides...
Block Island (Old Harbor)Low 0.6 feet (MLLW) 07:53 AM EDT.
High 2.9 feet (MLLW) 03:02 PM EDT.
.THURSDAY...Surf height 6 to 8 feet. Sunny. Highs in the lower 70s.
Northwest winds around 10 mph.
.FRIDAY...Surf height around 4 feet. Sunny. Highs in the lower 70s.
East winds around 10 mph.
.SATURDAY...Surf height around 3 feet. Mostly sunny. Highs in the
lower 70s. East winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
MAZ019-212200-
Eastern Plymouth MA-
Including the beaches of Cohasset, Duxbury, Hingham, Kingston,
Marshfield, Plymouth, and Scituate
410 AM EDT Tue Jul 21 2026
.TODAY...
Rip Current Risk*...........Low.
Surf Height.................2 to 3 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...........In the mid 60s.
Weather.....................Mostly cloudy.
High Temperature............In the upper 70s.
Winds.......................South winds 10 to 15 mph.
Tides...
Scituate Harbor..........Low 0.7 feet (MLLW) 11:26 AM EDT.
High 9.3 feet (MLLW) 05:50 PM EDT.
Plymouth.................Low 0.9 feet (MLLW) 11:43 AM EDT.
High 10.1 feet (MLLW) 05:51 PM EDT.
.WEDNESDAY...
Rip Current Risk*...........Low.
Surf Height.................3 to 6 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy. A chance of showers with
isolated thunderstorms.
High Temperature............In the lower 80s.
Winds.......................Southwest winds around 15 mph.
Tides...
Scituate Harbor..........High 8.2 feet (MLLW) 06:21 AM EDT.
Low 1.2 feet (MLLW) 12:19 PM EDT.
Plymouth.................High 8.9 feet (MLLW) 06:20 AM EDT.
Low 1.4 feet (MLLW) 12:36 PM EDT.
.THURSDAY...Surf height 2 to 4 feet. Sunny. Highs in the mid 70s.
North winds around 5 mph.
.FRIDAY...Surf height 2 to 3 feet. Sunny. Highs in the mid 70s.
Northeast winds around 5 mph.
.SATURDAY...Surf height 2 to 3 feet. Sunny. Highs in the mid 70s.
East winds around 5 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
MAZ015-016-212200-
Suffolk MA-Eastern Norfolk MA-
Including the beaches of Boston, Chelsea, Revere, Winthrop,
Braintree, Milton, Quincy, and Weymouth
410 AM EDT Tue Jul 21 2026
.TODAY...
Rip Current Risk*...........Low.
Surf Height.................2 to 3 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...........In the lower 60s.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............Around 80.
Winds.......................South winds 10 to 15 mph.
Tides...
Boston...................Low 1.1 feet (MLLW) 11:28 AM EDT.
High 9.7 feet (MLLW) 05:48 PM EDT.
.WEDNESDAY...
Rip Current Risk*...........Low.
Surf Height.................3 to 6 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy. Showers likely and a
slight chance of thunderstorms.
High Temperature............In the lower 80s.
Winds.......................Southwest winds 10 to 15 mph.
Tides...
Boston...................High 8.7 feet (MLLW) 06:21 AM EDT.
Low 1.6 feet (MLLW) 12:20 PM EDT.
.THURSDAY...Surf height 2 to 4 feet. Sunny. Highs in the upper 70s.
Northwest winds around 5 mph.
.FRIDAY...Surf height around 2 feet. Sunny. Highs in the upper 70s.
Northeast winds around 5 mph.
.SATURDAY...Surf height around 2 feet. Sunny. Highs in the mid 70s.
East winds around 5 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
MAZ007-212200-
Eastern Essex MA-
Including the beaches of Beverly, Gloucester, and Newburyport
410 AM EDT Tue Jul 21 2026
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................2 to 3 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...........In the lower 60s.
Weather.....................Mostly cloudy.
High Temperature............In the mid 70s.
Winds.......................South winds 10 to 15 mph.
Tides...
Newburyport..............Low 0.5 feet (MLLW) 12:02 PM EDT.
Gloucester Harbor........Low 0.7 feet (MLLW) 11:24 AM EDT.
High 9.3 feet (MLLW) 05:49 PM EDT.
.WEDNESDAY...
Rip Current Risk*...........Moderate.
Surf Height.................4 to 7 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy. A chance of showers with
isolated thunderstorms.
High Temperature............Around 80.
Winds.......................South winds 10 to 15 mph.
Tides...
Newburyport..............High 7.4 feet (MLLW) 06:30 AM EDT.
Low 0.9 feet (MLLW) 12:55 PM EDT.
Gloucester Harbor........High 8.2 feet (MLLW) 06:20 AM EDT.
Low 1.2 feet (MLLW) 12:17 PM EDT.
.THURSDAY...Surf height 2 to 5 feet. Sunny. Highs in the mid 70s.
West winds around 5 mph.
.FRIDAY...Surf height around 3 feet. Sunny. Highs in the mid 70s.
East winds around 5 mph.
.SATURDAY...Surf height 2 to 3 feet. Sunny. Highs in the mid 70s.
Southeast winds around 5 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$