Surf Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
995
FZUS51 KBOX 200812
SRFBOX
Surf Zone Forecast
National Weather Service Boston/Norton MA
412 AM EDT Wed Aug 20 2025
MAZ022-202000-
Barnstable MA-
Including the beaches of Chatham, Eastham, and Provincetown
412 AM EDT Wed Aug 20 2025
...HIGH SURF ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY...
.TODAY...
Rip Current Risk*...
East Coast...............Moderate.
Surf Height...
East Coast...............4 to 6 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...
East Coast...............In the upper 60s.
Weather.....................Partly sunny until 5 PM, then cloudy. A
chance of showers.
High Temperature............In the lower 70s.
Winds.......................East winds around 10 mph.
Tides...
Nauset Beach.............High 3.9 feet (MLLW) 08:47 AM EDT.
Low 0.5 feet (MLLW) 02:42 PM EDT.
Hyannisport..............High 3.1 feet (MLLW) 10:35 AM EDT.
Low 0.6 feet (MLLW) 03:40 PM EDT.
Barnstable Harbor........High 8.9 feet (MLLW) 09:45 AM EDT.
Low 1.2 feet (MLLW) 03:55 PM EDT.
.THURSDAY...
Rip Current Risk*...
East Coast...............High.
Surf Height...
East Coast...............6 to 10 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............In the lower 70s.
Winds.......................East winds 15 to 20 mph.
Tides...
Nauset Beach.............High 4.0 feet (MLLW) 09:44 AM EDT.
Low 0.4 feet (MLLW) 03:40 PM EDT.
Hyannisport..............High 3.2 feet (MLLW) 11:31 AM EDT.
Low 0.6 feet (MLLW) 04:38 PM EDT.
Barnstable Harbor........High 9.2 feet (MLLW) 10:42 AM EDT.
Low 0.9 feet (MLLW) 04:53 PM EDT.
.FRIDAY...Surf height 13 to 17 feet. Mostly sunny. Highs in the lower
70s. Breezy. Northeast winds around 25 mph.
.SATURDAY...Surf height 8 to 11 feet. Sunny. Highs in the mid 70s.
North winds around 15 mph.
.SUNDAY...Surf height around 5 feet. Mostly sunny. Highs in the lower
70s. South 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
$$
MAZ024-202000-
Nantucket MA-
Including the beaches of Nantucket
412 AM EDT Wed Aug 20 2025
...HIGH SURF ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY...
.TODAY...
Rip Current Risk*...
East Coast...............Moderate.
South Coast..............Moderate.
Surf Height...
East Coast...............4 to 7 feet.
South Coast..............5 to 7 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...
East Coast...............In the upper 60s.
South Coast..............In the upper 60s.
Weather.....................Mostly sunny until 4 PM, then mostly
cloudy. A chance of showers.
High Temperature............Around 70.
Winds.......................East winds around 15 mph.
Tides...
Nantucket................High 2.9 feet (MLLW) 10:40 AM EDT.
Low 0.5 feet (MLLW) 03:58 PM EDT.
Great Point..............High 2.8 feet (MLLW) 10:17 AM EDT.
Low 0.4 feet (MLLW) 03:53 PM EDT.
.THURSDAY...
Rip Current Risk*...
East Coast...............High.
South Coast..............High.
Surf Height...
East Coast...............9 to 12 feet.
South Coast..............10 to 13 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............In the lower 70s.
Winds.......................Breezy. Northeast winds around 25 mph.
Tides...
Nantucket................High 2.9 feet (MLLW) 11:36 AM EDT.
Low 0.4 feet (MLLW) 04:55 PM EDT.
Great Point..............High 2.9 feet (MLLW) 11:14 AM EDT.
Low 0.3 feet (MLLW) 04:51 PM EDT.
.FRIDAY...Surf height 15 to 18 feet. Mostly sunny. A slight chance of
showers. Highs in the lower 70s. Windy. Northeast winds around
35 mph.
.SATURDAY...Surf height 7 to 11 feet. Sunny. Highs in the lower 70s.
Northwest winds around 20 mph.
.SUNDAY...Surf height 4 to 7 feet. Mostly sunny. Highs in the lower
70s. South 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
$$
MAZ023-202000-
Dukes MA-
Including the beaches of Edgartown and Aquinnah
412 AM EDT Wed Aug 20 2025
...HIGH SURF ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY...
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................5 to 7 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...........In the upper 60s.
Weather.....................Mostly sunny until 3 PM, then mostly
cloudy. A chance of showers.
High Temperature............In the lower 70s.
Winds.......................East winds around 15 mph.
Tides...
Squibnocket Point........Low 0.3 feet (MLLW) 11:35 AM EDT.
High 3.4 feet (MLLW) 05:52 PM EDT.
.THURSDAY...
Rip Current Risk*...........High.
Surf Height.................10 to 13 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............Around 70.
Winds.......................Breezy. Northeast winds 20 to 25 mph.
Tides...
Squibnocket Point........High 3.1 feet (MLLW) 06:12 AM EDT.
Low 0.2 feet (MLLW) 12:28 PM EDT.
.FRIDAY...Surf height 13 to 17 feet. Mostly sunny. Highs in the lower
70s. Windy. Northeast winds around 30 mph.
.SATURDAY...Surf height 6 to 10 feet. Sunny. Highs in the mid 70s.
West winds around 15 mph.
.SUNDAY...Surf height 4 to 6 feet. Mostly sunny. Highs in the lower
70s. South 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
$$
MAZ020-202000-
Southern Bristol MA-
Including the beaches of Westport, Dartmouth, and New Bedford
412 AM EDT Wed Aug 20 2025
...HIGH SURF ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY...
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................6 to 7 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...........In the upper 60s.
Weather.....................Partly sunny. A chance of showers.
High Temperature............In the lower 70s.
Winds.......................East winds 10 to 15 mph.
Tides...
Westport Harbor..........High 3.0 feet (MLLW) 06:11 AM EDT.
Low 0.3 feet (MLLW) 12:10 PM EDT.
.THURSDAY...
Rip Current Risk*...........High.
Surf Height.................10 to 13 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............Around 70.
Winds.......................Northeast winds 15 to 20 mph.
Tides...
Westport Harbor..........High 3.2 feet (MLLW) 07:06 AM EDT.
Low 0.2 feet (MLLW) 01:03 PM EDT.
.FRIDAY...Surf height 13 to 17 feet. Mostly sunny. Highs in the mid
70s. Breezy. North winds around 25 mph.
.SATURDAY...Surf height 5 to 9 feet. Sunny. Highs in the upper 70s.
West winds around 15 mph.
.SUNDAY...Surf height 3 to 5 feet. Mostly sunny. Highs in the mid
70s. South winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
RIZ007-202000-
Newport RI-
Including the beaches of Newport, Middletown, and Little Compton
412 AM EDT Wed Aug 20 2025
...HIGH SURF ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY...
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................5 to 7 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...........In the upper 60s.
Weather.....................Partly sunny until 5 PM, then cloudy. A
chance of showers.
High Temperature............Around 70.
Winds.......................East winds 10 to 15 mph.
Tides...
Newport..................High 3.5 feet (MLLW) 06:02 AM EDT.
Low 0.4 feet (MLLW) 11:37 AM EDT.
.THURSDAY...
Rip Current Risk*...........High.
Surf Height.................10 to 13 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............Around 70.
Winds.......................Northeast winds around 20 mph.
Tides...
Newport..................High 3.8 feet (MLLW) 06:57 AM EDT.
Low 0.3 feet (MLLW) 12:30 PM EDT.
.FRIDAY...Surf height 13 to 17 feet. Mostly sunny. Highs in the mid
70s. Breezy. North winds around 25 mph.
.SATURDAY...Surf height 7 to 10 feet. Sunny. Highs in the mid 70s.
West winds around 15 mph.
.SUNDAY...Surf height 3 to 6 feet. Mostly sunny. Highs in the mid
70s. South 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
$$
RIZ006-202000-
Washington RI-
Including the beaches of Narragansett, Charlestown, and Westerly
412 AM EDT Wed Aug 20 2025
...HIGH SURF ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY...
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................5 to 7 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...........In the lower 70s.
Weather.....................Partly sunny until 5 PM, then cloudy.
Showers likely.
High Temperature............In the lower 70s.
Winds.......................East winds 10 to 15 mph.
Tides...
Watch Hill Point.........High 2.6 feet (MLLW) 06:43 AM EDT.
Low 0.3 feet (MLLW) 12:53 PM EDT.
Point Judith (Harbor)....High 3.0 feet (MLLW) 06:13 AM EDT.
Low 0.3 feet (MLLW) 12:26 PM EDT.
Narragansett Pier........Low 0.3 feet (MLLW) 11:48 AM EDT.
.THURSDAY...
Rip Current Risk*...........High.
Surf Height.................11 to 14 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............In the upper 60s.
Winds.......................Northeast winds around 15 mph.
Tides...
Watch Hill Point.........High 2.8 feet (MLLW) 07:38 AM EDT.
Low 0.2 feet (MLLW) 01:46 PM EDT.
Point Judith (Harbor)....High 3.2 feet (MLLW) 07:09 AM EDT.
Low 0.2 feet (MLLW) 01:22 PM EDT.
Narragansett Pier........High 3.5 feet (MLLW) 06:46 AM EDT.
Low 0.2 feet (MLLW) 12:41 PM EDT.
.FRIDAY...Surf height 13 to 17 feet. Mostly sunny. Highs in the mid
70s. North winds around 20 mph.
.SATURDAY...Surf height 7 to 10 feet. Sunny. Highs in the upper 70s.
West winds around 10 mph.
.SUNDAY...Surf height 4 to 6 feet. Mostly sunny. Highs in the mid
70s. South 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
$$
RIZ008-202000-
Block Island RI-
Including the beaches of Block Island
412 AM EDT Wed Aug 20 2025
...HIGH SURF ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY...
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................6 to 7 feet.
Thunderstorm Potential**....None.
UV Index**..................High.
Water Temperature...........In the lower 70s.
Weather.....................Mostly sunny until 2 PM, then mostly
cloudy. Patchy fog. A chance of
showers.
High Temperature............Around 70.
Winds.......................East winds 15 to 20 mph.
Tides...
Block Island (Old Harbor)Low 0.2 feet (MLLW) 12:00 PM EDT.
.THURSDAY...
Rip Current Risk*...........High.
Surf Height.................10 to 14 feet.
Thunderstorm Potential**....Low.
Weather.....................Mostly cloudy. Patchy fog. A chance of
showers and a slight chance of
thunderstorms.
High Temperature............Around 70.
Winds.......................Breezy. Northeast winds around 25 mph.
Tides...
Block Island (Old Harbor)High 3.1 feet (MLLW) 06:50 AM EDT.
Low 0.1 feet (MLLW) 12:55 PM EDT.
.FRIDAY...Surf height 14 to 18 feet. Mostly sunny. Highs in the mid
70s. Windy. North winds around 30 mph.
.SATURDAY...Surf height 8 to 11 feet. Sunny. Highs in the lower 70s.
West winds around 15 mph.
.SUNDAY...Surf height 4 to 6 feet. Mostly sunny. Highs in the lower
70s. South 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
$$
MAZ019-202000-
Eastern Plymouth MA-
Including the beaches of Cohasset, Duxbury, Hingham, Kingston,
Marshfield, Plymouth, and Scituate
412 AM EDT Wed Aug 20 2025
.TODAY...
Rip Current Risk*...........Low.
Surf Height.................2 to 4 feet.
Thunderstorm Potential**....None.
UV Index**..................Low.
Water Temperature...........In the mid 60s.
Weather.....................Mostly cloudy. Showers likely.
High Temperature............In the upper 60s.
Winds.......................East winds 5 to 10 mph.
Tides...
Scituate Harbor..........High 8.4 feet (MLLW) 09:40 AM EDT.
Low 0.9 feet (MLLW) 03:30 PM EDT.
Plymouth.................High 9.0 feet (MLLW) 09:41 AM EDT.
Low 1.1 feet (MLLW) 03:46 PM EDT.
.THURSDAY...
Rip Current Risk*...........Moderate.
Surf Height.................3 to 5 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. A slight chance of
showers.
High Temperature............Around 70.
Winds.......................Northeast winds around 15 mph.
Tides...
Scituate Harbor..........High 8.7 feet (MLLW) 10:38 AM EDT.
Low 0.7 feet (MLLW) 04:28 PM EDT.
Plymouth.................High 9.3 feet (MLLW) 10:41 AM EDT.
Low 0.9 feet (MLLW) 04:42 PM EDT.
.FRIDAY...Surf height 8 to 12 feet. Mostly sunny. Highs in the lower
70s. Northeast winds around 20 mph.
.SATURDAY...Surf height 6 to 9 feet. Sunny. Highs in the upper 70s.
Northwest winds around 15 mph.
.SUNDAY...Surf height 4 to 5 feet. Mostly sunny. Highs in the mid
70s. South winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
MAZ015-016-202000-
Suffolk MA-Eastern Norfolk MA-
Including the beaches of Boston, Chelsea, Revere, Winthrop,
Braintree, Milton, Quincy, and Weymouth
412 AM EDT Wed Aug 20 2025
.TODAY...
Rip Current Risk*...........Low.
Surf Height.................Around 2 feet.
Thunderstorm Potential**....None.
UV Index**..................Low.
Water Temperature...........In the mid 60s.
Weather.....................Mostly cloudy. Showers likely.
High Temperature............In the upper 60s.
Winds.......................East winds 5 to 10 mph.
Tides...
Boston...................High 8.9 feet (MLLW) 09:34 AM EDT.
Low 1.2 feet (MLLW) 03:25 PM EDT.
.THURSDAY...
Rip Current Risk*...........Moderate.
Surf Height.................3 to 5 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly cloudy. A slight chance of
showers.
High Temperature............In the upper 60s.
Winds.......................Northeast winds around 15 mph.
Tides...
Boston...................High 9.2 feet (MLLW) 10:31 AM EDT.
Low 0.9 feet (MLLW) 04:23 PM EDT.
.FRIDAY...Surf height 6 to 10 feet. Mostly sunny. Highs in the lower
70s. Northeast winds around 20 mph.
.SATURDAY...Surf height 7 to 9 feet. Sunny. Highs in the upper 70s.
Northwest winds around 10 mph.
.SUNDAY...Surf height around 5 feet. Mostly sunny. Highs in the mid
70s. South 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
$$
MAZ007-202000-
Eastern Essex MA-
Including the beaches of Beverly, Gloucester, and Newburyport
412 AM EDT Wed Aug 20 2025
.TODAY...
Rip Current Risk*...........Low.
Surf Height.................2 to 4 feet.
Thunderstorm Potential**....None.
UV Index**..................Low.
Water Temperature...........In the mid 60s.
Weather.....................Mostly cloudy. A chance of showers.
High Temperature............In the upper 60s.
Winds.......................East winds 5 to 10 mph.
Tides...
Newburyport..............High 7.3 feet (MLLW) 09:50 AM EDT.
Low 0.7 feet (MLLW) 04:05 PM EDT.
Gloucester Harbor........High 8.4 feet (MLLW) 09:39 AM EDT.
Low 0.9 feet (MLLW) 03:29 PM EDT.
.THURSDAY...
Rip Current Risk*...........Moderate.
Surf Height.................3 to 6 feet.
Thunderstorm Potential**....None.
Weather.....................Partly sunny.
High Temperature............Around 70.
Winds.......................Northeast winds around 15 mph.
Tides...
Newburyport..............High 7.5 feet (MLLW) 10:48 AM EDT.
Low 0.5 feet (MLLW) 05:01 PM EDT.
Gloucester Harbor........High 8.6 feet (MLLW) 10:37 AM EDT.
Low 0.7 feet (MLLW) 04:27 PM EDT.
.FRIDAY...Surf height 9 to 12 feet. Mostly sunny. Highs in the mid
70s. Northeast winds around 20 mph.
.SATURDAY...Surf height 7 to 9 feet. Sunny. Highs in the upper 70s.
Northeast winds around 10 mph.
.SUNDAY...Surf height around 5 feet. Mostly sunny. Highs in the upper
70s. South winds around 15 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$