Surf Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
646
FZUS51 KBOX 180809
SRFBOX
Surf Zone Forecast
National Weather Service Boston/Norton MA
409 AM EDT Sat Oct 18 2025
MAZ022-182200-
Barnstable MA-
Including the beaches of Chatham, Eastham, and Provincetown
409 AM EDT Sat Oct 18 2025
.TODAY...
Rip Current Risk*...
East Coast...............High.
Surf Height...
East Coast...............6 to 8 feet.
Thunderstorm Potential**....None.
UV Index**..................Moderate.
Water Temperature...
East Coast...............In the upper 50s.
Weather.....................Sunny.
High Temperature............In the upper 50s.
Winds.......................North winds around 10 mph.
Tides...
Nauset Beach.............High 4.2 feet (MLLW) 09:08 AM EDT.
Low 0.4 feet (MLLW) 03:16 PM EDT.
Hyannisport..............High 3.5 feet (MLLW) 10:52 AM EDT.
Low 0.6 feet (MLLW) 04:21 PM EDT.
Barnstable Harbor........High 9.6 feet (MLLW) 10:06 AM EDT.
Low 0.9 feet (MLLW) 04:29 PM EDT.
.SUNDAY...
Rip Current Risk*...
East Coast...............Moderate.
Surf Height...
East Coast...............4 to 6 feet.
Thunderstorm Potential**....None.
Weather.....................Sunny.
High Temperature............In the mid 60s.
Winds.......................South winds 5 to 10 mph.
Tides...
Nauset Beach.............High 4.3 feet (MLLW) 09:50 AM EDT.
Low 0.3 feet (MLLW) 04:02 PM EDT.
Hyannisport..............High 3.6 feet (MLLW) 11:34 AM EDT.
Low 0.5 feet (MLLW) 05:10 PM EDT.
Barnstable Harbor........High 9.8 feet (MLLW) 10:48 AM EDT.
Low 0.6 feet (MLLW) 05:15 PM EDT.
.MONDAY...Surf height 5 to 6 feet. Mostly cloudy. Showers and a
slight chance of thunderstorms. Highs in the mid 60s. Southeast winds
around 20 mph.
.TUESDAY...Surf height 4 to 7 feet. Sunny. A slight chance of showers
and thunderstorms. Highs in the lower 60s. Southwest winds around
10 mph.
.WEDNESDAY...Surf height around 4 feet. Mostly cloudy. Showers likely
and a slight chance of thunderstorms. Highs in the lower 60s. 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
$$
MAZ024-182200-
Nantucket MA-
Including the beaches of Nantucket
409 AM EDT Sat Oct 18 2025
.TODAY...
Rip Current Risk*...
East Coast...............High.
South Coast..............High.
Surf Height...
East Coast...............6 to 9 feet.
South Coast..............5 to 9 feet.
Thunderstorm Potential**....None.
UV Index**..................Moderate.
Water Temperature...
East Coast...............In the upper 50s.
South Coast..............In the upper 50s.
Weather.....................Sunny.
High Temperature............In the upper 50s.
Winds.......................North winds 10 to 15 mph.
Tides...
Nantucket................High 3.3 feet (MLLW) 10:53 AM EDT.
Low 0.4 feet (MLLW) 04:40 PM EDT.
Great Point..............High 3.1 feet (MLLW) 10:38 AM EDT.
Low 0.3 feet (MLLW) 04:27 PM EDT.
.SUNDAY...
Rip Current Risk*...
East Coast...............Moderate.
South Coast..............Moderate.
Surf Height...
East Coast...............5 to 6 feet.
South Coast..............4 to 7 feet.
Thunderstorm Potential**....None.
Weather.....................Sunny.
High Temperature............In the lower 60s.
Winds.......................South winds 5 to 10 mph.
Tides...
Nantucket................High 3.4 feet (MLLW) 11:35 AM EDT.
Low 0.3 feet (MLLW) 05:28 PM EDT.
Great Point..............High 3.2 feet (MLLW) 11:20 AM EDT.
Low 0.2 feet (MLLW) 05:13 PM EDT.
.MONDAY...Surf height 6 to 8 feet. Mostly cloudy. Showers and a
slight chance of thunderstorms. Highs in the mid 60s. Breezy. South
winds around 25 mph.
.TUESDAY...Surf height 5 to 8 feet. Sunny. A slight chance of
showers. Highs in the lower 60s. Southwest winds around 15 mph.
.WEDNESDAY...Surf height 4 to 6 feet. Mostly cloudy. Showers likely.
Highs in the lower 60s. 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
$$
MAZ023-182200-
Dukes MA-
Including the beaches of Edgartown and Aquinnah
409 AM EDT Sat Oct 18 2025
.TODAY...
Rip Current Risk*...........Low.
Surf Height.................4 to 7 feet.
Thunderstorm Potential**....None.
UV Index**..................Moderate.
Water Temperature...........In the upper 50s.
Weather.....................Sunny.
High Temperature............In the lower 60s.
Winds.......................North winds 5 to 10 mph.
Tides...
Squibnocket Point........Low 0.4 feet (MLLW) 12:19 PM EDT.
High 3.0 feet (MLLW) 05:58 PM EDT.
.SUNDAY...
Rip Current Risk*...........Low.
Surf Height.................3 to 5 feet.
Thunderstorm Potential**....None.
Weather.....................Sunny.
High Temperature............In the mid 60s.
Winds.......................South winds around 10 mph.
Tides...
Squibnocket Point........High 3.3 feet (MLLW) 06:18 AM EDT.
Low 0.3 feet (MLLW) 12:50 PM EDT.
.MONDAY...Surf height 5 to 8 feet. Mostly cloudy. Showers likely and
a slight chance of thunderstorms. Highs in the mid 60s. Breezy. South
winds around 25 mph.
.TUESDAY...Surf height 5 to 8 feet. Sunny. Highs in the lower 60s.
Southwest winds around 15 mph.
.WEDNESDAY...Surf height 4 to 6 feet. Mostly cloudy. Showers likely
and a slight chance of thunderstorms. Highs in the lower 60s.
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
$$
MAZ020-182200-
Southern Bristol MA-
Including the beaches of Westport, Dartmouth, and New Bedford
409 AM EDT Sat Oct 18 2025
.TODAY...
Rip Current Risk*...........Low.
Surf Height.................3 to 5 feet.
Thunderstorm Potential**....None.
UV Index**..................Moderate.
Water Temperature...........Around 60.
Weather.....................Sunny.
High Temperature............In the lower 60s.
Winds.......................North winds around 5 mph.
Tides...
Westport Harbor..........High 3.3 feet (MLLW) 06:28 AM EDT.
Low 0.4 feet (MLLW) 12:54 PM EDT.
.SUNDAY...
Rip Current Risk*...........Low.
Surf Height.................2 to 5 feet.
Thunderstorm Potential**....None.
Weather.....................Sunny.
High Temperature............In the mid 60s.
Winds.......................South winds 10 to 15 mph.
Tides...
Westport Harbor..........High 3.5 feet (MLLW) 07:12 AM EDT.
Low 0.3 feet (MLLW) 01:25 PM EDT.
.MONDAY...Surf height 7 to 8 feet. Mostly cloudy. Showers likely and
a slight chance of thunderstorms. Highs in the mid 60s. South winds
around 20 mph.
.TUESDAY...Surf height 5 to 7 feet. Sunny. Highs in the lower 60s.
Southwest winds around 10 mph.
.WEDNESDAY...Surf height 4 to 6 feet. Partly sunny. Showers likely.
Highs in the lower 60s. Southwest winds around 15 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
RIZ007-182200-
Newport RI-
Including the beaches of Newport, Middletown, and Little Compton
409 AM EDT Sat Oct 18 2025
.TODAY...
Rip Current Risk*...........Low.
Surf Height.................3 to 5 feet.
Thunderstorm Potential**....None.
UV Index**..................Moderate.
Water Temperature...........Around 60.
Weather.....................Sunny.
High Temperature............In the lower 60s.
Winds.......................North winds around 5 mph, becoming west
in the afternoon.
Tides...
Newport..................High 3.9 feet (MLLW) 06:19 AM EDT.
Low 0.4 feet (MLLW) 12:21 PM EDT.
.SUNDAY...
Rip Current Risk*...........Low.
Surf Height.................2 to 6 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly sunny.
High Temperature............In the mid 60s.
Winds.......................South winds 10 to 15 mph.
Tides...
Newport..................High 4.1 feet (MLLW) 07:03 AM EDT.
Low 0.3 feet (MLLW) 12:52 PM EDT.
.MONDAY...Surf height 7 to 8 feet. Mostly cloudy. Showers and a
slight chance of thunderstorms. Highs in the mid 60s. South winds
around 20 mph.
.TUESDAY...Surf height 4 to 7 feet. Sunny. Highs in the lower 60s.
Southwest winds around 10 mph.
.WEDNESDAY...Surf height 4 to 6 feet. Partly sunny. Showers likely.
Highs in the lower 60s. 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
$$
RIZ006-182200-
Washington RI-
Including the beaches of Narragansett, Charlestown, and Westerly
409 AM EDT Sat Oct 18 2025
.TODAY...
Rip Current Risk*...........Low.
Surf Height.................3 to 5 feet.
Thunderstorm Potential**....None.
UV Index**..................Moderate.
Water Temperature...........In the lower 60s.
Weather.....................Sunny.
High Temperature............In the lower 60s.
Winds.......................North winds around 5 mph, becoming
southeast in the afternoon.
Tides...
Watch Hill Point.........High 2.9 feet (MLLW) 07:00 AM EDT.
Low 0.3 feet (MLLW) 01:37 PM EDT.
Point Judith (Harbor)....High 3.3 feet (MLLW) 06:32 AM EDT.
Low 0.3 feet (MLLW) 01:00 PM EDT.
Narragansett Pier........High 3.6 feet (MLLW) 06:08 AM EDT.
Low 0.4 feet (MLLW) 12:32 PM EDT.
.SUNDAY...
Rip Current Risk*...........Low.
Surf Height.................3 to 6 feet.
Thunderstorm Potential**....None.
Weather.....................Sunny.
High Temperature............In the mid 60s.
Winds.......................South winds around 10 mph.
Tides...
Watch Hill Point.........High 3.0 feet (MLLW) 07:44 AM EDT.
Low 0.2 feet (MLLW) 02:08 PM EDT.
Point Judith (Harbor)....High 3.5 feet (MLLW) 07:16 AM EDT.
Low 0.2 feet (MLLW) 01:40 PM EDT.
Narragansett Pier........High 3.7 feet (MLLW) 06:52 AM EDT.
Low 0.3 feet (MLLW) 01:03 PM EDT.
.MONDAY...Surf height 7 to 8 feet. Mostly cloudy. Showers likely and
a slight chance of thunderstorms. Highs in the mid 60s. South winds
around 20 mph.
.TUESDAY...Surf height 4 to 7 feet. Sunny. Highs in the lower 60s.
Southwest winds around 10 mph.
.WEDNESDAY...Surf height 4 to 6 feet. Partly sunny. Showers likely.
Highs in the lower 60s. 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
$$
RIZ008-182200-
Block Island RI-
Including the beaches of Block Island
409 AM EDT Sat Oct 18 2025
.TODAY...
Rip Current Risk*...........Low.
Surf Height.................3 to 6 feet.
Thunderstorm Potential**....None.
UV Index**..................Moderate.
Water Temperature...........In the lower 60s.
Weather.....................Sunny.
High Temperature............In the lower 60s.
Winds.......................North winds around 10 mph, becoming
west in the afternoon.
Tides...
Block Island (Old Harbor)High 3.2 feet (MLLW) 06:13 AM EDT.
Low 0.3 feet (MLLW) 12:32 PM EDT.
.SUNDAY...
Rip Current Risk*...........Low.
Surf Height.................3 to 5 feet.
Thunderstorm Potential**....None.
Weather.....................Sunny.
High Temperature............In the mid 60s.
Winds.......................South winds 10 to 15 mph.
Tides...
Block Island (Old Harbor)High 3.4 feet (MLLW) 06:54 AM EDT.
Low 0.2 feet (MLLW) 01:11 PM EDT.
.MONDAY...Surf height 7 to 8 feet. Mostly cloudy. Showers and a
slight chance of thunderstorms. Highs in the mid 60s. Breezy. South
winds around 25 mph.
.TUESDAY...Surf height 5 to 6 feet. Sunny. Highs in the lower 60s.
Southwest winds around 15 mph.
.WEDNESDAY...Surf height 5 to 6 feet. Partly sunny. Showers likely.
Highs in the lower 60s. 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
$$
MAZ019-182200-
Eastern Plymouth MA-
Including the beaches of Cohasset, Duxbury, Hingham, Kingston,
Marshfield, Plymouth, and Scituate
409 AM EDT Sat Oct 18 2025
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................4 to 7 feet.
Thunderstorm Potential**....None.
UV Index**..................Moderate.
Water Temperature...........In the upper 50s.
Weather.....................Sunny.
High Temperature............In the upper 50s.
Winds.......................North winds 5 to 10 mph.
Tides...
Scituate Harbor..........High 9.1 feet (MLLW) 09:59 AM EDT.
Low 0.7 feet (MLLW) 04:01 PM EDT.
Plymouth.................High 9.7 feet (MLLW) 10:04 AM EDT.
Low 0.9 feet (MLLW) 04:10 PM EDT.
.SUNDAY...
Rip Current Risk*...........Low.
Surf Height.................3 to 5 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly sunny.
High Temperature............In the mid 60s.
Winds.......................South winds 5 to 10 mph.
Tides...
Scituate Harbor..........High 9.3 feet (MLLW) 10:43 AM EDT.
Low 0.5 feet (MLLW) 04:49 PM EDT.
Plymouth.................High 9.9 feet (MLLW) 10:48 AM EDT.
Low 0.7 feet (MLLW) 04:58 PM EDT.
.MONDAY...Surf height 4 to 6 feet. Mostly cloudy. Showers likely and
a slight chance of thunderstorms. Highs in the mid 60s. Southeast
winds around 20 mph.
.TUESDAY...Surf height 3 to 5 feet. Sunny. A slight chance of
showers. Highs in the lower 60s. Southwest winds around 10 mph.
.WEDNESDAY...Surf height around 3 feet. Mostly cloudy. Showers
likely. Highs in the lower 60s. South winds around 10 mph.
&&
Rip Current Risk Category
* Low Risk - The risk for rip currents is low, however,
life-threatening rip currents often occur in the vicinity of groins,
jetties, reefs, and piers.
* Moderate Risk - Life-threatening rip currents are possible in the
surf zone.
* High Risk - Life-threatening rip currents are likely in the surf
zone.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/box
$$
MAZ015-016-182200-
Suffolk MA-Eastern Norfolk MA-
Including the beaches of Boston, Chelsea, Revere, Winthrop,
Braintree, Milton, Quincy, and Weymouth
409 AM EDT Sat Oct 18 2025
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................5 to 6 feet.
Thunderstorm Potential**....None.
UV Index**..................Moderate.
Water Temperature...........In the upper 50s.
Weather.....................Sunny.
High Temperature............Around 60.
Winds.......................North winds 5 to 10 mph.
Tides...
Boston...................High 9.6 feet (MLLW) 09:55 AM EDT.
Low 0.9 feet (MLLW) 03:59 PM EDT.
.SUNDAY...
Rip Current Risk*...........Low.
Surf Height.................4 to 5 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly sunny.
High Temperature............In the mid 60s.
Winds.......................South winds 5 to 10 mph.
Tides...
Boston...................High 9.8 feet (MLLW) 10:37 AM EDT.
Low 0.6 feet (MLLW) 04:45 PM EDT.
.MONDAY...Surf height 5 to 6 feet. Mostly cloudy. Showers likely and
a slight chance of thunderstorms. Highs in the mid 60s. Southeast
winds around 20 mph.
.TUESDAY...Surf height around 4 feet. Sunny. A slight chance of
showers. Highs in the lower 60s. Southwest winds around 10 mph.
.WEDNESDAY...Surf height around 3 feet. Mostly cloudy. Showers
likely. Highs in the lower 60s. 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
$$
MAZ007-182200-
Eastern Essex MA-
Including the beaches of Beverly, Gloucester, and Newburyport
409 AM EDT Sat Oct 18 2025
.TODAY...
Rip Current Risk*...........Moderate.
Surf Height.................5 to 6 feet.
Thunderstorm Potential**....None.
UV Index**..................Moderate.
Water Temperature...........In the mid 50s.
Weather.....................Sunny.
High Temperature............In the lower 60s.
Winds.......................North winds around 5 mph, becoming east
in the afternoon.
Tides...
Newburyport..............High 8.0 feet (MLLW) 10:07 AM EDT.
Low 0.5 feet (MLLW) 04:28 PM EDT.
Gloucester Harbor........High 9.1 feet (MLLW) 09:58 AM EDT.
Low 0.7 feet (MLLW) 04:02 PM EDT.
.SUNDAY...
Rip Current Risk*...........Moderate.
Surf Height.................Around 4 feet.
Thunderstorm Potential**....None.
Weather.....................Mostly sunny.
High Temperature............In the mid 60s.
Winds.......................South winds 5 to 10 mph.
Tides...
Newburyport..............High 8.2 feet (MLLW) 10:52 AM EDT.
Low 0.3 feet (MLLW) 05:17 PM EDT.
Gloucester Harbor........High 9.2 feet (MLLW) 10:43 AM EDT.
Low 0.5 feet (MLLW) 04:49 PM EDT.
.MONDAY...Surf height 5 to 6 feet. Mostly cloudy. Showers likely and
a slight chance of thunderstorms. Highs in the mid 60s. Southeast
winds around 20 mph.
.TUESDAY...Surf height 4 to 5 feet. Mostly sunny. A slight chance of
showers. Highs in the lower 60s. Southwest winds around 10 mph.
.WEDNESDAY...Surf height 3 to 4 feet. Mostly cloudy. Showers likely
and a slight chance of thunderstorms. Highs in the lower 60s. 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
$$