Surf Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
235
FZUS51 KBOX 212010
SRFBOX
Surf Zone Forecast
National Weather Service Boston/Norton MA
410 PM EDT Tue Jul 21 2026
MAZ022-221000-
Barnstable MA-
Including the beaches of Chatham, Eastham, and Provincetown
410 PM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.REST OF TODAY...
Rip Current Risk*...
East Coast...............Moderate.
Surf Height...
East Coast...............Around 3 feet.
Thunderstorm Potential**....Low.
UV Index**..................High.
Water Temperature...
East Coast...............In the mid 60s.
Weather.....................Mostly cloudy. A chance of showers with
isolated thunderstorms.
High Temperature............In the mid 70s.
Winds.......................Southeast winds around 15 mph.
Tides...
Nauset Beach.............High 4.3 feet (MLLW) 05:01 PM EDT.
Hyannisport..............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. Patchy fog. A chance of
showers and a slight chance of
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 7 feet. Partly sunny. A chance of
showers. Highs in the lower 70s. North winds around 5 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. Northeast 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
$$
MAZ024-221000-
Nantucket MA-
Including the beaches of Nantucket
410 PM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.REST OF TODAY...
Rip Current Risk*...
East Coast...............Moderate.
South Coast..............Moderate.
Surf Height...
East Coast...............Around 3 feet.
South Coast..............Around 3 feet.
Thunderstorm Potential**....Low.
UV Index**..................High.
Water Temperature...
East Coast...............In the lower 60s.
South Coast..............In the mid 60s.
Weather.....................Mostly cloudy. A chance of showers with
isolated thunderstorms.
High Temperature............In the mid 70s.
Winds.......................Southeast winds around 20 mph.
Tides...
Nantucket................Low 0.5 feet (MLLW) 12:10 PM EDT.
Great Point..............Low 0.4 feet (MLLW) 11:56 AM EDT.
.WEDNESDAY...
Rip Current Risk*...
East Coast...............Moderate.
South Coast..............High.
Surf Height...
East Coast...............8 to 10 feet.
South Coast..............8 to 10 feet.
Thunderstorm Potential**....Moderate.
Weather.....................Mostly cloudy. Patchy fog. A chance of
showers and thunderstorms.
High Temperature............In the upper 70s.
Winds.......................Breezy. Southwest winds 20 to 25 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 5 to 8 feet. Partly sunny. Showers likely and
a slight chance of thunderstorms. 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. Highs in the
lower 70s. Northeast 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
$$
MAZ023-221000-
Dukes MA-
Including the beaches of Edgartown and Aquinnah
410 PM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.REST OF TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 4 feet.
Thunderstorm Potential**....Low.
UV Index**..................High.
Water Temperature...........In the upper 60s.
Weather.....................Mostly cloudy. A chance of showers with
isolated thunderstorms.
High Temperature............In the mid 70s.
Winds.......................Southeast winds around 20 mph.
Tides...
Squibnocket Point........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. Patchy fog. A chance of
showers and a slight chance of
thunderstorms.
High Temperature............In the upper 70s.
Winds.......................Breezy. Southwest winds 20 to 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 7 feet. Partly sunny. A chance of
showers. Highs in the mid 70s. Northeast winds around 10 mph.
.FRIDAY...Surf height 3 to 4 feet. Sunny. Highs in the mid 70s. East
winds around 5 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
$$
MAZ020-221000-
Southern Bristol MA-
Including the beaches of Westport, Dartmouth, and New Bedford
410 PM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.REST OF TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 4 feet.
Thunderstorm Potential**....Low.
UV Index**..................High.
Water Temperature...........In the upper 60s.
Weather.....................Cloudy. A chance of showers with
isolated thunderstorms.
High Temperature............In the upper 70s.
Winds.......................South winds around 20 mph.
Tides...
Westport Harbor..........High 3.2 feet (MLLW) 02:30 PM EDT.
.WEDNESDAY...
Rip Current Risk*...........Moderate.
Surf Height.................8 to 10 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy. Patchy fog. A chance of
showers and a slight chance of
thunderstorms.
High Temperature............In the upper 70s.
Winds.......................Southwest winds 20 to 25 mph.
Tides...
Westport Harbor..........Low 0.6 feet (MLLW) 08:22 AM EDT.
High 3.0 feet (MLLW) 03:22 PM EDT.
.THURSDAY...Surf height 5 to 6 feet. Mostly sunny. A chance of
showers. Highs in the upper 70s. North winds around 5 mph.
.FRIDAY...Surf height 3 to 4 feet. Sunny. Highs in the upper 70s.
East winds around 5 mph.
.SATURDAY...Surf height around 3 feet. Mostly sunny. Highs in the mid
70s. East winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
RIZ007-221000-
Newport RI-
Including the beaches of Newport, Middletown, and Little Compton
410 PM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.REST OF TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 4 feet.
Thunderstorm Potential**....Low.
UV Index**..................High.
Water Temperature...........In the upper 60s.
Weather.....................Cloudy. Showers likely and a slight
chance of thunderstorms.
High Temperature............In the mid 70s.
Winds.......................Southeast winds around 20 mph.
Tides...
Newport..................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. Patchy fog. A chance of
showers and a slight chance of
thunderstorms.
High Temperature............In the upper 70s.
Winds.......................Southwest winds 20 to 25 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 6 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. East
winds around 5 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
$$
RIZ006-221000-
Washington RI-
Including the beaches of Narragansett, Charlestown, and Westerly
410 PM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.REST OF TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 4 feet.
Thunderstorm Potential**....Low.
UV Index**..................High.
Water Temperature...........In the upper 60s.
Weather.....................Cloudy. Showers likely and a slight
chance of thunderstorms.
High Temperature............In the mid 70s.
Winds.......................Southeast winds around 15 mph.
Tides...
Watch Hill Point.........High 2.8 feet (MLLW) 03:02 PM EDT.
Point Judith (Harbor)....High 3.2 feet (MLLW) 02:29 PM EDT.
Narragansett Pier........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. Patchy fog. A chance of
showers and a slight chance of
thunderstorms.
High Temperature............In the upper 70s.
Winds.......................Southwest winds 15 to 25 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 6 feet. Mostly sunny. Highs in the upper
70s. North 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
$$
RIZ008-221000-
Block Island RI-
Including the beaches of Block Island
410 PM EDT Tue Jul 21 2026
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 8 PM EDT
THURSDAY...
.REST OF TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 4 feet.
Thunderstorm Potential**....Low.
UV Index**..................High.
Water Temperature...........In the upper 60s.
Weather.....................Mostly cloudy. Showers likely and a
slight chance of thunderstorms.
High Temperature............In the mid 70s.
Winds.......................South winds around 20 mph.
Tides...
Block Island (Old Harbor)High 3.0 feet (MLLW) 02:07 PM EDT.
.WEDNESDAY...
Rip Current Risk*...........Moderate.
Surf Height.................8 to 10 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy. Patchy fog. A chance of
showers and a slight chance of
thunderstorms.
High Temperature............In the mid 70s.
Winds.......................Southwest winds 15 to 25 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 5 to 6 feet. Mostly sunny. A chance of
showers. Highs in the lower 70s. Northeast winds around 10 mph.
.FRIDAY...Surf height 3 to 4 feet. Sunny. Highs in the lower 70s.
East winds around 5 mph.
.SATURDAY...Surf height around 3 feet. Mostly sunny. Highs around 70.
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
$$
MAZ019-221000-
Eastern Plymouth MA-
Including the beaches of Cohasset, Duxbury, Hingham, Kingston,
Marshfield, Plymouth, and Scituate
410 PM EDT Tue Jul 21 2026
.REST OF TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....Low.
UV Index**..................High.
Water Temperature...........In the mid 60s.
Weather.....................Mostly cloudy. A chance of showers with
isolated thunderstorms.
High Temperature............In the mid 70s.
Winds.......................South winds around 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 5 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy. Patchy fog. A chance of
showers and a slight chance of
thunderstorms.
High Temperature............In the lower 80s.
Winds.......................Southwest winds 15 to 25 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. Mostly 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 around 2 feet. Sunny. Highs in the lower 70s.
Northeast 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
$$
MAZ015-016-221000-
Suffolk MA-Eastern Norfolk MA-
Including the beaches of Boston, Chelsea, Revere, Winthrop,
Braintree, Milton, Quincy, and Weymouth
410 PM EDT Tue Jul 21 2026
.REST OF TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....Low.
UV Index**..................High.
Water Temperature...........In the lower 60s.
Weather.....................Cloudy. A chance of showers with
isolated thunderstorms.
High Temperature............In the upper 70s.
Winds.......................South winds around 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 5 feet.
Thunderstorm Potential**....Moderate.
Weather.....................Mostly cloudy until 12 PM, then partly
sunny. Patchy fog. A chance of showers
and thunderstorms.
High Temperature............In the lower 80s.
Winds.......................Southwest winds 15 to 25 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.
North winds around 5 mph.
.FRIDAY...Surf height around 2 feet. Sunny. Highs in the upper 70s.
East winds around 5 mph.
.SATURDAY...Surf height around 2 feet. 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
$$
MAZ007-221000-
Eastern Essex MA-
Including the beaches of Beverly, Gloucester, and Newburyport
410 PM EDT Tue Jul 21 2026
.REST OF TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...........In the lower 60s.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............In the mid 70s.
Winds.......................Southeast winds around 15 mph.
Tides...
Newburyport..............Low 0.5 feet (MLLW) 12:02 PM EDT.
Gloucester Harbor........Low 0.7 feet (MLLW) 11:24 AM EDT.
High 9.3 feet (MLLW) 05:49 PM EDT.
.WEDNESDAY...
Rip Current Risk*...........Moderate.
Surf Height.................4 to 6 feet.
Thunderstorm Potential**....Moderate.
Weather.....................Mostly cloudy until 12 PM, then partly
sunny. Patchy fog. A chance of showers
and thunderstorms.
High Temperature............Around 80.
Winds.......................Southwest winds 20 to 25 mph.
Tides...
Newburyport..............High 7.4 feet (MLLW) 06:30 AM EDT.
Low 0.9 feet (MLLW) 12:55 PM EDT.
Gloucester Harbor........High 8.2 feet (MLLW) 06:20 AM EDT.
Low 1.2 feet (MLLW) 12:17 PM EDT.
.THURSDAY...Surf height 2 to 5 feet. Sunny. Highs in the mid 70s.
West winds around 5 mph.
.FRIDAY...Surf height 2 to 3 feet. Sunny. Highs in the mid 70s. East
winds around 5 mph.
.SATURDAY...Surf height around 2 feet. Sunny. Highs in the lower 70s.
East winds around 5 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$