Surf Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
111
FZUS51 KBOX 202009
SRFBOX
Surf Zone Forecast
National Weather Service Boston/Norton MA
408 PM EDT Thu Aug 20 2026
MAZ022-211000-
Barnstable MA-
Including the beaches of Chatham, Eastham, and Provincetown
408 PM EDT Thu Aug 20 2026
.REST OF TODAY...
Rip Current Risk*...
East Coast...............Low.
Surf Height...
East Coast...............Around 2 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...
East Coast...............In the upper 60s.
Weather.....................Partly sunny.
High Temperature............In the upper 70s.
Winds.......................Southeast winds around 5 mph.
Tides...
Nauset Beach.............High 4.1 feet (MLLW) 05:11 PM EDT.
Hyannisport..............Low 1.0 feet (MLLW) 12:03 PM EDT.
Barnstable Harbor........Low 2.0 feet (MLLW) 12:10 PM EDT.
.FRIDAY...
Rip Current Risk*...
East Coast...............Low.
Surf Height...
East Coast...............2 to 3 feet.
Thunderstorm Potential**....None.
Weather.....................Cloudy. Rain.
High Temperature............Around 70.
Winds.......................Northeast winds 10 to 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...Surf height around 3 feet. Mostly cloudy. Showers likely
or patchy drizzle. Highs in the lower 70s. East winds around 10 mph.
.SUNDAY...Surf height 3 to 4 feet. Mostly cloudy. Showers likely and
a slight chance of thunderstorms. Highs in the mid 70s. South winds
around 10 mph.
.MONDAY...Surf height 3 to 4 feet. Mostly sunny. A slight chance of
showers and thunderstorms. Highs in the upper 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
$$
MAZ024-211000-
Nantucket MA-
Including the beaches of Nantucket
408 PM EDT Thu Aug 20 2026
.REST OF TODAY...
Rip Current Risk*...
East Coast...............Low.
South Coast..............Low.
Surf Height...
East Coast...............Around 2 feet.
South Coast..............Around 2 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...
East Coast...............In the upper 60s.
South Coast..............In the lower 70s.
Weather.....................Mostly sunny.
High Temperature............In the upper 70s.
Winds.......................Southwest winds around 10 mph.
Tides...
Nantucket................Low 0.9 feet (MLLW) 12:22 PM EDT.
Great Point..............Low 0.6 feet (MLLW) 12:08 PM EDT.
.FRIDAY...
Rip Current Risk*...
East Coast...............Moderate.
South Coast..............Low.
Surf Height...
East Coast...............2 to 3 feet.
South Coast..............2 to 3 feet.
Thunderstorm Potential**....Low.
Weather.....................Cloudy. Rain with isolated
thunderstorms.
High Temperature............In the lower 70s.
Winds.......................Northeast winds 10 to 15 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...Surf height around 3 feet. Mostly cloudy. Showers likely
with possible thunderstorms or drizzle. Highs in the mid 70s. East
winds around 10 mph.
.SUNDAY...Surf height around 4 feet. Mostly cloudy. Showers likely
and a slight chance of thunderstorms. Highs in the mid 70s. South
winds around 10 mph.
.MONDAY...Surf height 3 to 6 feet. Mostly sunny. A chance of showers
and a slight chance of thunderstorms. Highs in the mid 70s. Southwest
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
$$
MAZ023-211000-
Dukes MA-
Including the beaches of Edgartown and Aquinnah
408 PM EDT Thu Aug 20 2026
.REST OF TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 2 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the lower 70s.
Weather.....................Mostly sunny.
High Temperature............Around 80.
Winds.......................Southwest winds around 10 mph.
Tides...
Squibnocket Point........High 2.7 feet (MLLW) 01:49 PM EDT.
.FRIDAY...
Rip Current Risk*...........Low.
Surf Height.................2 to 3 feet.
Thunderstorm Potential**....Low.
Weather.....................Cloudy. Rain with isolated
thunderstorms.
High Temperature............In the lower 70s.
Winds.......................Northeast winds 10 to 15 mph.
Tides...
Squibnocket Point........Low 0.8 feet (MLLW) 07:58 AM EDT.
High 2.6 feet (MLLW) 02:45 PM EDT.
.SATURDAY...Surf height around 3 feet. Mostly cloudy. Showers likely
or patchy drizzle. Highs in the mid 70s. East winds around 10 mph.
.SUNDAY...Surf height 3 to 4 feet. Mostly cloudy. Showers likely and
a slight chance of thunderstorms. Highs in the upper 70s. South winds
around 10 mph.
.MONDAY...Surf height 4 to 5 feet. Sunny. Highs in the mid 70s.
Southwest 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
$$
MAZ020-211000-
Southern Bristol MA-
Including the beaches of Westport, Dartmouth, and New Bedford
408 PM EDT Thu Aug 20 2026
.REST OF TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 2 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the lower 70s.
Weather.....................Partly sunny.
High Temperature............In the lower 80s.
Winds.......................Southwest winds around 10 mph.
Tides...
Westport Harbor..........High 2.8 feet (MLLW) 02:43 PM EDT.
.FRIDAY...
Rip Current Risk*...........Low.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
Weather.....................Cloudy. Rain.
High Temperature............In the lower 70s.
Winds.......................Northeast winds 10 to 15 mph.
Tides...
Westport Harbor..........Low 0.8 feet (MLLW) 08:33 AM EDT.
High 2.7 feet (MLLW) 03:39 PM EDT.
.SATURDAY...Surf height around 3 feet. Mostly cloudy. Showers likely
or patchy drizzle. Highs in the lower 70s. Northeast winds around
10 mph.
.SUNDAY...Surf height 3 to 4 feet. Mostly cloudy. Showers likely and
a slight chance of thunderstorms. Highs in the upper 70s. South winds
around 10 mph.
.MONDAY...Surf height 4 to 5 feet. Sunny. Highs in the mid 70s.
Southwest winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
RIZ007-211000-
Newport RI-
Including the beaches of Newport, Middletown, and Little Compton
408 PM EDT Thu Aug 20 2026
.REST OF TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 2 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the lower 70s.
Weather.....................Partly sunny.
High Temperature............In the lower 80s.
Winds.......................Southwest winds around 10 mph.
Tides...
Newport..................High 3.3 feet (MLLW) 02:34 PM EDT.
.FRIDAY...
Rip Current Risk*...........Low.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
Weather.....................Cloudy. Rain.
High Temperature............In the lower 70s.
Winds.......................Northeast winds 10 to 15 mph.
Tides...
Newport..................Low 0.9 feet (MLLW) 08:00 AM EDT.
High 3.2 feet (MLLW) 03:30 PM EDT.
.SATURDAY...Surf height around 3 feet. Mostly cloudy. Showers likely
or patchy drizzle. Highs in the lower 70s. Northeast winds around
10 mph.
.SUNDAY...Surf height 3 to 4 feet. Mostly cloudy. A chance of showers
and a slight chance of thunderstorms. Highs in the mid 70s. South
winds around 10 mph.
.MONDAY...Surf height 4 to 5 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
$$
RIZ006-211000-
Washington RI-
Including the beaches of Narragansett, Charlestown, and Westerly
408 PM EDT Thu Aug 20 2026
.REST OF TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 2 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the lower 70s.
Weather.....................Mostly cloudy.
High Temperature............In the lower 80s.
Winds.......................Southwest winds around 10 mph.
Tides...
Watch Hill Point.........High 2.4 feet (MLLW) 03:15 PM EDT.
Point Judith (Harbor)....High 3.0 feet (MLLW) 02:33 PM EDT.
Narragansett Pier........High 3.0 feet (MLLW) 02:23 PM EDT.
.FRIDAY...
Rip Current Risk*...........Low.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
Weather.....................Cloudy. Rain.
High Temperature............In the lower 70s.
Winds.......................Northeast winds 10 to 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...Surf height around 3 feet. Mostly cloudy. Showers likely
or patchy drizzle. Highs in the lower 70s. Northeast winds around
10 mph.
.SUNDAY...Surf height 3 to 4 feet. Partly sunny. A chance of showers
and a slight chance of thunderstorms. Highs in the upper 70s. South
winds around 10 mph.
.MONDAY...Surf height 4 to 5 feet. Sunny. Highs in the upper 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
$$
RIZ008-211000-
Block Island RI-
Including the beaches of Block Island
408 PM EDT Thu Aug 20 2026
.REST OF TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 2 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the lower 70s.
Weather.....................Mostly cloudy.
High Temperature............In the upper 70s.
Winds.......................Southwest winds around 10 mph.
Tides...
Block Island (Old Harbor)High 2.7 feet (MLLW) 02:16 PM EDT.
.FRIDAY...
Rip Current Risk*...........Low.
Surf Height.................Around 3 feet.
Thunderstorm Potential**....None.
Weather.....................Cloudy. Rain.
High Temperature............In the lower 70s.
Winds.......................Northeast winds 10 to 15 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...Surf height around 3 feet. Mostly cloudy. Showers likely
with possible thunderstorms or drizzle. Highs in the mid 70s.
Northeast winds around 10 mph.
.SUNDAY...Surf height 3 to 4 feet. Partly sunny. A chance of showers
and a slight chance of thunderstorms. Highs in the mid 70s. South
winds around 10 mph.
.MONDAY...Surf height 4 to 5 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
$$
MAZ019-211000-
Eastern Plymouth MA-
Including the beaches of Cohasset, Duxbury, Hingham, Kingston,
Marshfield, Plymouth, and Scituate
408 PM EDT Thu Aug 20 2026
.REST OF TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 2 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the upper 60s.
Weather.....................Partly sunny.
High Temperature............Around 80.
Winds.......................Southeast winds around 5 mph.
Tides...
Scituate Harbor..........Low 1.6 feet (MLLW) 11:38 AM EDT.
Plymouth.................Low 1.9 feet (MLLW) 11:58 AM EDT.
.FRIDAY...
Rip Current Risk*...........Low.
Surf Height.................Around 2 feet.
Thunderstorm Potential**....None.
Weather.....................Cloudy. Rain likely or patchy drizzle.
High Temperature............In the upper 60s.
Winds.......................Northeast winds 10 to 15 mph.
Tides...
Scituate Harbor..........High 7.5 feet (MLLW) 06:41 AM EDT.
Low 2.0 feet (MLLW) 12:34 PM EDT.
Plymouth.................High 8.2 feet (MLLW) 06:37 AM EDT.
Low 2.2 feet (MLLW) 12:53 PM EDT.
.SATURDAY...Surf height 2 to 3 feet. Mostly cloudy. Rain likely.
Highs in the lower 70s. Northeast winds around 10 mph.
.SUNDAY...Surf height around 3 feet. Mostly cloudy. A chance of
showers and a slight chance of thunderstorms. Highs in the upper 70s.
Southeast winds around 5 mph.
.MONDAY...Surf height 2 to 3 feet. Sunny. Highs in the upper 70s.
Southwest winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
MAZ015-016-211000-
Suffolk MA-Eastern Norfolk MA-
Including the beaches of Boston, Chelsea, Revere, Winthrop,
Braintree, Milton, Quincy, and Weymouth
408 PM EDT Thu Aug 20 2026
.REST OF TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 2 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the upper 60s.
Weather.....................Mostly cloudy.
High Temperature............In the lower 80s.
Winds.......................East winds around 5 mph.
Tides...
Boston...................Low 2.0 feet (MLLW) 11:40 AM EDT.
High 9.3 feet (MLLW) 05:58 PM EDT.
.FRIDAY...
Rip Current Risk*...........Low.
Surf Height.................2 to 3 feet.
Thunderstorm Potential**....None.
Weather.....................Cloudy. A chance of rain or patchy
drizzle.
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...Surf height 2 to 3 feet. Mostly cloudy. Rain likely.
Highs in the lower 70s. Northeast winds around 10 mph.
.SUNDAY...Surf height around 3 feet. Mostly cloudy. A chance of
showers and a slight chance of thunderstorms. Highs in the upper 70s.
Southeast winds around 5 mph.
.MONDAY...Surf height around 2 feet. Mostly sunny. Highs in the upper
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
$$
MAZ007-211000-
Eastern Essex MA-
Including the beaches of Beverly, Gloucester, and Newburyport
408 PM EDT Thu Aug 20 2026
.REST OF TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 2 feet.
Thunderstorm Potential**....None.
UV Index**..................Very High.
Water Temperature...........In the upper 60s.
Weather.....................Partly sunny.
High Temperature............In the upper 70s.
Winds.......................Southeast winds around 5 mph.
Tides...
Newburyport..............Low 1.2 feet (MLLW) 12:17 PM EDT.
Gloucester Harbor........Low 1.6 feet (MLLW) 11:35 AM EDT.
High 8.7 feet (MLLW) 05:59 PM EDT.
.FRIDAY...
Rip Current Risk*...........Low.
Surf Height.................2 to 3 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. A slight chance of rain
or patchy drizzle.
High Temperature............In the upper 60s.
Winds.......................Northeast winds 10 to 15 mph.
Tides...
Newburyport..............High 6.9 feet (MLLW) 06:46 AM EDT.
Low 1.5 feet (MLLW) 01:12 PM EDT.
Gloucester Harbor........High 7.5 feet (MLLW) 06:39 AM EDT.
Low 2.0 feet (MLLW) 12:31 PM EDT.
.SATURDAY...Surf height 2 to 3 feet. Mostly cloudy. Rain likely.
Highs in the lower 70s. Northeast winds around 10 mph.
.SUNDAY...Surf height around 3 feet. Mostly cloudy. A chance of
showers and a slight chance of thunderstorms. Highs in the mid 70s.
East winds around 5 mph.
.MONDAY...Surf height 2 to 3 feet. Mostly sunny. Highs in the upper
70s. Southwest winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$