Surf Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
061
FZUS51 KBOX 210810
SRFBOX
Surf Zone Forecast
National Weather Service Boston/Norton MA
410 AM EDT Fri Aug 21 2026
MAZ022-212200-
Barnstable MA-
Including the beaches of Chatham, Eastham, and Provincetown
410 AM EDT Fri Aug 21 2026
.TODAY...
Rip Current Risk*...
East Coast...............High.
Surf Height...
East Coast...............Around 3 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...
East Coast...............In the upper 60s.
Weather.....................Mostly cloudy. Patchy fog. Showers
likely.
High Temperature............Around 70.
Winds.......................Northeast winds around 15 mph.
Tides...
Nauset Beach.............Low 1.0 feet (MLLW) 11:51 AM EDT.
Hyannisport..............High 2.8 feet (MLLW) 08:00 AM EDT.
Low 1.1 feet (MLLW) 12:50 PM EDT.
Barnstable Harbor........High 8.0 feet (MLLW) 06:51 AM EDT.
Low 2.3 feet (MLLW) 01:04 PM EDT.
.SATURDAY...
Rip Current Risk*...
East Coast...............High.
Surf Height...
East Coast...............3 to 4 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. Patchy fog. A chance of
showers.
High Temperature............In the lower 70s.
Winds.......................East winds around 10 mph.
Tides...
Nauset Beach.............High 3.5 feet (MLLW) 06:53 AM EDT.
Low 1.1 feet (MLLW) 12:46 PM EDT.
Hyannisport..............High 2.7 feet (MLLW) 08:55 AM EDT.
Low 1.1 feet (MLLW) 01:40 PM EDT.
Barnstable Harbor........High 7.9 feet (MLLW) 07:51 AM EDT.
Low 2.4 feet (MLLW) 01:59 PM EDT.
.SUNDAY...Surf height around 3 feet. Mostly cloudy. Showers likely.
Highs in the mid 70s. South winds around 10 mph.
.MONDAY...Surf height 3 to 5 feet. Sunny. Highs in the mid 70s.
Southwest winds around 10 mph.
.TUESDAY...Surf height around 3 feet. Sunny. Highs in the mid 70s.
Southwest 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
$$
MAZ024-212200-
Nantucket MA-
Including the beaches of Nantucket
410 AM EDT Fri Aug 21 2026
.TODAY...
Rip Current Risk*...
East Coast...............High.
South Coast..............High.
Surf Height...
East Coast...............2 to 3 feet.
South Coast..............2 to 3 feet.
Thunderstorm Potential**....Low.
UV Index**..................Very High.
Water Temperature...
East Coast...............In the upper 60s.
South Coast..............In the lower 70s.
Weather.....................Mostly cloudy. Patchy fog. Showers with
isolated thunderstorms.
High Temperature............In the lower 70s.
Winds.......................Northeast winds around 20 mph.
Tides...
Nantucket................High 2.6 feet (MLLW) 07:53 AM EDT.
Low 1.0 feet (MLLW) 01:13 PM EDT.
Great Point..............High 2.6 feet (MLLW) 07:23 AM EDT.
Low 0.7 feet (MLLW) 01:02 PM EDT.
.SATURDAY...
Rip Current Risk*...
East Coast...............High.
South Coast..............High.
Surf Height...
East Coast...............Around 3 feet.
South Coast..............Around 3 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. Patchy fog. A chance of
showers.
High Temperature............In the lower 70s.
Winds.......................Northeast winds around 15 mph, becoming
southwest in the afternoon.
Tides...
Nantucket................High 2.5 feet (MLLW) 08:48 AM EDT.
Low 1.0 feet (MLLW) 02:07 PM EDT.
Great Point..............High 2.5 feet (MLLW) 08:23 AM EDT.
Low 0.8 feet (MLLW) 01:57 PM EDT.
.SUNDAY...Surf height around 3 feet. Mostly cloudy. Showers. Highs in
the mid 70s. South winds around 10 mph.
.MONDAY...Surf height 4 to 6 feet. Sunny. A chance of showers. Highs
in the mid 70s. Southwest winds around 10 mph.
.TUESDAY...Surf height 3 to 4 feet. Sunny. Highs in the mid 70s. West
winds around 15 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 Fri Aug 21 2026
.TODAY...
Rip Current Risk*...........High.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....Low.
UV Index**..................Very High.
Water Temperature...........In the lower 70s.
Weather.....................Mostly cloudy. Patchy fog. Showers with
isolated thunderstorms.
High Temperature............In the lower 70s.
Winds.......................Northeast winds around 20 mph.
Tides...
Squibnocket Point........Low 0.8 feet (MLLW) 07:58 AM EDT.
High 2.6 feet (MLLW) 02:45 PM EDT.
.SATURDAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. Patchy fog. A slight
chance of showers.
High Temperature............In the lower 70s.
Winds.......................North winds around 10 mph.
Tides...
Squibnocket Point........Low 0.8 feet (MLLW) 09:12 AM EDT.
High 2.5 feet (MLLW) 03:49 PM EDT.
.SUNDAY...Surf height around 3 feet. Mostly cloudy. Showers likely.
Highs in the mid 70s. South winds around 10 mph.
.MONDAY...Surf height 5 to 6 feet. Sunny. Highs in the mid 70s.
Southwest winds around 15 mph.
.TUESDAY...Surf height around 3 feet. Sunny. Highs in the mid 70s.
West winds around 15 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
$$
MAZ020-212200-
Southern Bristol MA-
Including the beaches of Westport, Dartmouth, and New Bedford
410 AM EDT Fri Aug 21 2026
.TODAY...
Rip Current Risk*...........High.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....Low.
UV Index**..................Very High.
Water Temperature...........In the lower 70s.
Weather.....................Mostly cloudy. Patchy fog. Showers with
isolated thunderstorms.
High Temperature............In the lower 70s.
Winds.......................Northeast winds around 15 mph.
Tides...
Westport Harbor..........Low 0.8 feet (MLLW) 08:33 AM EDT.
High 2.7 feet (MLLW) 03:39 PM EDT.
.SATURDAY...
Rip Current Risk*...........Moderate.
Surf Height.................2 to 3 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. Patchy fog. A chance of
showers.
High Temperature............In the lower 70s.
Winds.......................North winds around 10 mph.
Tides...
Westport Harbor..........Low 0.8 feet (MLLW) 09:47 AM EDT.
High 2.6 feet (MLLW) 04:43 PM EDT.
.SUNDAY...Surf height around 3 feet. Mostly cloudy. Showers likely.
Highs in the mid 70s. South winds around 10 mph.
.MONDAY...Surf height 4 to 5 feet. Sunny. Highs in the upper 70s.
Southwest winds around 10 mph.
.TUESDAY...Surf height around 3 feet. Sunny. Highs in the mid 70s.
West winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
RIZ007-212200-
Newport RI-
Including the beaches of Newport, Middletown, and Little Compton
410 AM EDT Fri Aug 21 2026
.TODAY...
Rip Current Risk*...........High.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the lower 70s.
Weather.....................Cloudy. Patchy fog. Showers.
High Temperature............In the lower 70s.
Winds.......................Northeast winds around 15 mph.
Tides...
Newport..................Low 0.9 feet (MLLW) 08:00 AM EDT.
High 3.2 feet (MLLW) 03:30 PM EDT.
.SATURDAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. Patchy fog. A chance of
showers.
High Temperature............In the lower 70s.
Winds.......................North winds around 10 mph.
Tides...
Newport..................Low 0.9 feet (MLLW) 09:14 AM EDT.
High 3.1 feet (MLLW) 04:34 PM EDT.
.SUNDAY...Surf height around 3 feet. Mostly cloudy. Showers likely.
Highs in the mid 70s. South winds around 10 mph.
.MONDAY...Surf height 4 to 6 feet. Sunny. Highs in the mid 70s.
Southwest winds around 10 mph.
.TUESDAY...Surf height around 3 feet. Sunny. Highs in the mid 70s.
West 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 Fri Aug 21 2026
.TODAY...
Rip Current Risk*...........High.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the lower 70s.
Weather.....................Cloudy. Patchy fog. Showers.
High Temperature............In the lower 70s.
Winds.......................Northeast winds around 15 mph.
Tides...
Watch Hill Point.........Low 0.7 feet (MLLW) 09:16 AM EDT.
High 2.3 feet (MLLW) 04:11 PM EDT.
Point Judith (Harbor)....Low 0.8 feet (MLLW) 08:18 AM EDT.
High 3.0 feet (MLLW) 03:24 PM EDT.
Narragansett Pier........Low 0.9 feet (MLLW) 08:11 AM EDT.
High 2.9 feet (MLLW) 03:19 PM EDT.
.SATURDAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. Patchy fog. A chance of
showers.
High Temperature............In the lower 70s.
Winds.......................North winds 5 to 10 mph.
Tides...
Watch Hill Point.........Low 0.7 feet (MLLW) 10:30 AM EDT.
High 2.3 feet (MLLW) 05:15 PM EDT.
Point Judith (Harbor)....Low 0.9 feet (MLLW) 09:23 AM EDT.
High 2.9 feet (MLLW) 04:21 PM EDT.
Narragansett Pier........Low 0.9 feet (MLLW) 09:25 AM EDT.
High 2.8 feet (MLLW) 04:23 PM EDT.
.SUNDAY...Surf height around 3 feet. Mostly cloudy. Showers likely
with isolated thunderstorms. Highs in the mid 70s. South winds around
10 mph.
.MONDAY...Surf height 4 to 5 feet. Sunny. Highs in the upper 70s.
Southwest winds around 10 mph.
.TUESDAY...Surf height around 3 feet. Sunny. Highs in the mid 70s.
West 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
$$
RIZ008-212200-
Block Island RI-
Including the beaches of Block Island
410 AM EDT Fri Aug 21 2026
.TODAY...
Rip Current Risk*...........High.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the mid 70s.
Weather.....................Mostly cloudy. Patchy fog. Showers.
High Temperature............In the lower 70s.
Winds.......................Breezy. Northeast winds 20 to 25 mph.
Tides...
Block Island (Old Harbor)Low 0.9 feet (MLLW) 07:49 AM EDT.
High 2.6 feet (MLLW) 03:23 PM EDT.
.SATURDAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. Patchy fog. A chance of
showers.
High Temperature............In the lower 70s.
Winds.......................North winds 10 to 15 mph.
Tides...
Block Island (Old Harbor)Low 0.9 feet (MLLW) 09:04 AM EDT.
High 2.7 feet (MLLW) 04:38 PM EDT.
.SUNDAY...Surf height around 3 feet. Partly sunny. Showers likely
with isolated thunderstorms. Highs in the mid 70s. South winds around
10 mph.
.MONDAY...Surf height 4 to 6 feet. Sunny. Highs in the mid 70s. West
winds around 10 mph.
.TUESDAY...Surf height around 3 feet. Sunny. Highs in the mid 70s.
West winds around 15 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
$$
MAZ019-212200-
Eastern Plymouth MA-
Including the beaches of Cohasset, Duxbury, Hingham, Kingston,
Marshfield, Plymouth, and Scituate
410 AM EDT Fri Aug 21 2026
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the upper 60s.
Weather.....................Mostly cloudy. Patchy fog. Showers
likely.
High Temperature............Around 70.
Winds.......................Northeast winds around 15 mph.
Tides...
Scituate Harbor..........High 7.5 feet (MLLW) 06:41 AM EDT.
Low 2.0 feet (MLLW) 12:34 PM EDT.
Plymouth.................High 8.2 feet (MLLW) 06:37 AM EDT.
Low 2.2 feet (MLLW) 12:53 PM EDT.
.SATURDAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
Weather.....................Cloudy. Patchy fog. A chance of
showers.
High Temperature............Around 70.
Winds.......................Northeast winds around 10 mph.
Tides...
Scituate Harbor..........High 7.4 feet (MLLW) 07:43 AM EDT.
Low 2.1 feet (MLLW) 01:31 PM EDT.
Plymouth.................High 7.9 feet (MLLW) 07:38 AM EDT.
Low 2.4 feet (MLLW) 01:50 PM EDT.
.SUNDAY...Surf height around 2 feet. Mostly cloudy. Showers likely.
Highs in the mid 70s. Southeast winds around 5 mph.
.MONDAY...Surf height 2 to 3 feet. Sunny. Highs in the upper 70s.
Southwest winds around 10 mph.
.TUESDAY...Surf height around 2 feet. Sunny. Highs in the upper 70s.
West winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
MAZ015-016-212200-
Suffolk MA-Eastern Norfolk MA-
Including the beaches of Boston, Chelsea, Revere, Winthrop,
Braintree, Milton, Quincy, and Weymouth
410 AM EDT Fri Aug 21 2026
.TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the upper 60s.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............In the lower 70s.
Winds.......................Northeast winds 10 to 15 mph.
Tides...
Boston...................High 8.0 feet (MLLW) 06:40 AM EDT.
Low 2.3 feet (MLLW) 12:34 PM EDT.
.SATURDAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
Weather.....................Cloudy. Patchy fog. A chance of
showers.
High Temperature............Around 70.
Winds.......................Northeast winds around 10 mph.
Tides...
Boston...................High 7.9 feet (MLLW) 07:40 AM EDT.
Low 2.4 feet (MLLW) 01:29 PM EDT.
.SUNDAY...Surf height around 2 feet. Mostly cloudy. Showers likely.
Highs in the mid 70s. East winds around 5 mph.
.MONDAY...Surf height around 2 feet. Sunny. Highs around 80.
Southwest winds around 10 mph.
.TUESDAY...Surf height around 2 feet. Sunny. Highs in the mid 70s.
West 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
$$
MAZ007-212200-
Eastern Essex MA-
Including the beaches of Beverly, Gloucester, and Newburyport
410 AM EDT Fri Aug 21 2026
.TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the upper 60s.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............In the lower 70s.
Winds.......................Northeast winds around 10 mph.
Tides...
Newburyport..............High 6.9 feet (MLLW) 06:46 AM EDT.
Low 1.5 feet (MLLW) 01:12 PM EDT.
Gloucester Harbor........High 7.5 feet (MLLW) 06:39 AM EDT.
Low 2.0 feet (MLLW) 12:31 PM EDT.
.SATURDAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
Weather.....................Cloudy. Patchy fog. A chance of
showers.
High Temperature............In the upper 60s.
Winds.......................Northeast winds around 10 mph.
Tides...
Newburyport..............High 6.7 feet (MLLW) 07:43 AM EDT.
Low 1.6 feet (MLLW) 02:08 PM EDT.
Gloucester Harbor........High 7.3 feet (MLLW) 07:41 AM EDT.
Low 2.2 feet (MLLW) 01:29 PM EDT.
.SUNDAY...Surf height 2 to 3 feet. Mostly cloudy. Showers likely.
Highs in the mid 70s. East winds around 5 mph.
.MONDAY...Surf height around 3 feet. Sunny. Highs in the upper 70s.
Southwest winds around 5 mph.
.TUESDAY...Surf height 2 to 3 feet. Sunny. Highs in the upper 70s.
West winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$