FZUS51 KBOX 180811 SRFBOX Surf Zone Forecast National Weather Service Boston/Norton MA 411 AM EDT Sat Apr 18 2026 MAZ022-182200- Barnstable MA- Including the beaches of Chatham, Eastham, and Provincetown 411 AM EDT Sat Apr 18 2026 .TODAY... Rip Current Risk*... East Coast...............Low. Surf Height... East Coast...............3 to 5 feet. Thunderstorm Potential**....None. UV Index**..................Moderate. Water Temperature... East Coast...............In the lower 40s. Weather.....................Cloudy. Areas of fog. High Temperature............In the upper 40s. Winds.......................Northeast winds 10 to 15 mph. Tides... Nauset Beach.............High 4.6 feet (MLLW) 11:48 AM EDT. Low -0.2 feet (MLLW) 05:56 PM EDT. Hyannisport..............Low -0.5 feet (MLLW) 07:05 AM EDT. High 3.3 feet (MLLW) 01:43 PM EDT. Barnstable Harbor........Low -1.3 feet (MLLW) 06:55 AM EDT. High 10.5 feet (MLLW) 12:46 PM EDT. .SUNDAY... Rip Current Risk*... East Coast...............Low. Surf Height... East Coast...............4 to 5 feet. Thunderstorm Potential**....None. Weather.....................Cloudy. Patchy fog. Rain. High Temperature............In the lower 50s. Winds.......................South winds around 10 mph, becoming southwest in the afternoon. Tides... Nauset Beach.............Low -0.6 feet (MLLW) 06:31 AM EDT. High 4.5 feet (MLLW) 12:38 PM EDT. Hyannisport..............Low -0.6 feet (MLLW) 07:58 AM EDT. High 3.2 feet (MLLW) 02:35 PM EDT. Barnstable Harbor........Low -1.5 feet (MLLW) 07:44 AM EDT. High 10.3 feet (MLLW) 01:36 PM EDT. .MONDAY...Surf height 3 to 4 feet. Mostly sunny. Highs in the upper 40s. West winds around 10 mph. .TUESDAY...Surf height around 3 feet. Sunny. Highs in the mid 40s. North winds around 10 mph. .WEDNESDAY...Surf height 3 to 4 feet. Partly sunny. A slight chance of showers. Highs around 50. 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 $$ MAZ024-182200- Nantucket MA- Including the beaches of Nantucket 411 AM EDT Sat Apr 18 2026 .TODAY... Rip Current Risk*... East Coast...............Low. South Coast..............Low. Surf Height... East Coast...............Around 4 feet. South Coast..............3 to 4 feet. Thunderstorm Potential**....None. UV Index**..................Moderate. Water Temperature... East Coast...............In the mid 40s. South Coast..............In the mid 40s. Weather.....................Cloudy. Areas of fog. High Temperature............In the upper 40s. Winds.......................Northeast winds around 15 mph. Tides... Nantucket................Low -0.6 feet (MLLW) 07:10 AM EDT. High 3.0 feet (MLLW) 01:47 PM EDT. Great Point..............Low -0.4 feet (MLLW) 06:53 AM EDT. High 3.3 feet (MLLW) 01:18 PM EDT. .SUNDAY... Rip Current Risk*... East Coast...............Moderate. South Coast..............Moderate. Surf Height... East Coast...............Around 5 feet. South Coast..............3 to 6 feet. Thunderstorm Potential**....None. Weather.....................Cloudy. Patchy fog. Rain. High Temperature............In the mid 50s. Winds.......................South winds 10 to 15 mph. Tides... Nantucket................Low -0.7 feet (MLLW) 08:01 AM EDT. High 2.9 feet (MLLW) 02:39 PM EDT. Great Point..............Low -0.5 feet (MLLW) 07:42 AM EDT. High 3.3 feet (MLLW) 02:08 PM EDT. .MONDAY...Surf height 3 to 4 feet. Sunny. Highs in the upper 40s. West winds around 10 mph. .TUESDAY...Surf height around 3 feet. Sunny. Highs in the mid 40s. North winds around 10 mph. .WEDNESDAY...Surf height 3 to 5 feet. Partly sunny. A slight chance of showers. Highs in the lower 50s. 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 $$ MAZ023-182200- Dukes MA- Including the beaches of Edgartown and Aquinnah 411 AM EDT Sat Apr 18 2026 .TODAY... Rip Current Risk*...........Low. Surf Height.................3 to 4 feet. Thunderstorm Potential**....None. UV Index**..................Moderate. Water Temperature...........In the upper 40s. Weather.....................Cloudy. Areas of fog. High Temperature............Around 50. Winds.......................Northeast winds around 15 mph. Tides... Squibnocket Point........High 3.2 feet (MLLW) 08:20 AM EDT. Low -0.5 feet (MLLW) 02:24 PM EDT. .SUNDAY... Rip Current Risk*...........Low. Surf Height.................2 to 6 feet. Thunderstorm Potential**....None. Weather.....................Cloudy. Patchy fog. Rain. High Temperature............In the mid 50s. Winds.......................South winds around 10 mph, becoming west in the afternoon. Tides... Squibnocket Point........High 3.1 feet (MLLW) 09:10 AM EDT. Low -0.4 feet (MLLW) 03:10 PM EDT. .MONDAY...Surf height 3 to 5 feet. Mostly sunny. A slight chance of showers. Highs in the upper 40s. West winds around 10 mph. .TUESDAY...Surf height 2 to 3 feet. Sunny. Highs in the mid 40s. North winds around 10 mph. .WEDNESDAY...Surf height around 4 feet. Partly sunny. A slight chance of showers. Highs in the lower 50s. 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 $$ MAZ020-182200- Southern Bristol MA- Including the beaches of Westport, Dartmouth, and New Bedford 411 AM EDT Sat Apr 18 2026 .TODAY... Rip Current Risk*...........Low. Surf Height.................3 to 4 feet. Thunderstorm Potential**....None. UV Index**..................Moderate. Water Temperature...........In the mid 40s. Weather.....................Mostly cloudy. Areas of fog. High Temperature............In the lower 50s. Winds.......................Northeast winds around 10 mph. Tides... Westport Harbor..........High 3.3 feet (MLLW) 09:14 AM EDT. Low -0.5 feet (MLLW) 02:59 PM EDT. .SUNDAY... Rip Current Risk*...........Low. Surf Height.................2 to 4 feet. Thunderstorm Potential**....None. Weather.....................Cloudy. Patchy fog. Rain. High Temperature............In the mid 50s. Winds.......................South winds around 10 mph, becoming west in the afternoon. Tides... Westport Harbor..........High 3.3 feet (MLLW) 10:04 AM EDT. Low -0.4 feet (MLLW) 03:45 PM EDT. .MONDAY...Surf height 3 to 4 feet. Mostly sunny. A slight chance of showers. Highs around 50. West winds around 10 mph. .TUESDAY...Surf height 2 to 3 feet. Sunny. Highs in the upper 40s. Northwest winds around 10 mph. .WEDNESDAY...Surf height around 4 feet. Partly sunny. A slight chance of showers. Highs in the mid 50s. Southwest winds around 15 mph. && Rip Current Risk Category * Low Risk - The risk for rip currents is low, however, life-threatening rip currents often occur in the vicinity of groins, jetties, reefs, and piers. * Moderate Risk - Life-threatening rip currents are possible in the surf zone. * High Risk - Life-threatening rip currents are likely in the surf zone. ** For thunderstorm, waterspout, and UV definitions see: https://www.weather.gov/beach/box $$ RIZ007-182200- Newport RI- Including the beaches of Newport, Middletown, and Little Compton 411 AM EDT Sat Apr 18 2026 .TODAY... Rip Current Risk*...........Low. Surf Height.................3 to 4 feet. Thunderstorm Potential**....None. UV Index**..................Moderate. Water Temperature...........In the mid 40s. Weather.....................Mostly cloudy. Areas of fog. High Temperature............In the lower 50s. Winds.......................Northeast winds around 10 mph. Tides... Newport..................High 3.9 feet (MLLW) 09:05 AM EDT. Low -0.6 feet (MLLW) 02:26 PM EDT. .SUNDAY... Rip Current Risk*...........Low. Surf Height.................2 to 5 feet. Thunderstorm Potential**....None. Weather.....................Cloudy. Patchy fog. Rain. High Temperature............In the mid 50s. Winds.......................South winds around 10 mph, becoming west in the afternoon. Tides... Newport..................High 3.8 feet (MLLW) 09:55 AM EDT. Low -0.5 feet (MLLW) 03:12 PM EDT. .MONDAY...Surf height 3 to 4 feet. Mostly sunny. A slight chance of showers. Highs in the upper 40s. West winds around 10 mph. .TUESDAY...Surf height 2 to 3 feet. Sunny. Highs in the mid 40s. Northwest winds around 10 mph. .WEDNESDAY...Surf height around 4 feet. Partly sunny. A slight chance of showers. Highs in the mid 50s. 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 411 AM EDT Sat Apr 18 2026 .TODAY... Rip Current Risk*...........Low. Surf Height.................3 to 4 feet. Thunderstorm Potential**....None. UV Index**..................Moderate. Water Temperature...........In the mid 40s. Weather.....................Mostly cloudy. High Temperature............In the lower 50s. Winds.......................Northeast winds around 10 mph. Tides... Watch Hill Point.........High 2.9 feet (MLLW) 09:46 AM EDT. Low -0.4 feet (MLLW) 03:42 PM EDT. Point Judith (Harbor)....High 3.3 feet (MLLW) 09:03 AM EDT. Low -0.6 feet (MLLW) 02:40 PM EDT. Narragansett Pier........High 3.5 feet (MLLW) 08:54 AM EDT. Low -0.5 feet (MLLW) 02:37 PM EDT. .SUNDAY... Rip Current Risk*...........Low. Surf Height.................2 to 5 feet. Thunderstorm Potential**....None. Weather.....................Cloudy. Patchy fog. Rain. High Temperature............In the mid 50s. Winds.......................South winds around 5 mph, becoming northwest in the afternoon. Tides... Watch Hill Point.........High 2.8 feet (MLLW) 10:36 AM EDT. Low -0.4 feet (MLLW) 04:28 PM EDT. Point Judith (Harbor)....High 3.2 feet (MLLW) 09:52 AM EDT. Low -0.5 feet (MLLW) 03:26 PM EDT. Narragansett Pier........High 3.5 feet (MLLW) 09:44 AM EDT. Low -0.5 feet (MLLW) 03:23 PM EDT. .MONDAY...Surf height 3 to 4 feet. Mostly sunny. A slight chance of showers. Highs around 50. West winds around 10 mph. .TUESDAY...Surf height 2 to 3 feet. Sunny. Highs in the upper 40s. North winds around 10 mph. .WEDNESDAY...Surf height around 4 feet. Partly sunny. A slight chance of showers. Highs in the mid 50s. 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 411 AM EDT Sat Apr 18 2026 .TODAY... Rip Current Risk*...........Low. Surf Height.................3 to 4 feet. Thunderstorm Potential**....None. UV Index**..................Moderate. Water Temperature...........In the mid 40s. Weather.....................Mostly cloudy. Areas of fog. High Temperature............Around 50. Winds.......................Northeast winds 10 to 15 mph. Tides... Block Island (Old Harbor)High 3.2 feet (MLLW) 08:54 AM EDT. Low -0.6 feet (MLLW) 02:33 PM EDT. .SUNDAY... Rip Current Risk*...........Low. Surf Height.................2 to 5 feet. Thunderstorm Potential**....None. Weather.....................Cloudy. Patchy fog. Rain. High Temperature............In the lower 50s. Winds.......................Southeast winds around 10 mph, becoming west in the afternoon. Tides... Block Island (Old Harbor)High 3.1 feet (MLLW) 09:42 AM EDT. Low -0.5 feet (MLLW) 03:17 PM EDT. .MONDAY...Surf height 3 to 4 feet. Mostly sunny. A slight chance of showers. Highs in the upper 40s. West winds around 10 mph. .TUESDAY...Surf height 2 to 3 feet. Sunny. Highs in the mid 40s. Northeast winds around 10 mph. .WEDNESDAY...Surf height around 4 feet. Partly sunny. A slight chance of showers. Highs in the lower 50s. 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 411 AM EDT Sat Apr 18 2026 .TODAY... Rip Current Risk*...........Low. Surf Height.................2 to 4 feet. Thunderstorm Potential**....None. UV Index**..................Moderate. Water Temperature...........In the lower 40s. Weather.....................Cloudy. Areas of fog. High Temperature............In the upper 40s. Winds.......................Northeast winds around 10 mph. Tides... Scituate Harbor..........Low -1.1 feet (MLLW) 06:27 AM EDT. High 9.7 feet (MLLW) 12:40 PM EDT. Plymouth.................Low -0.9 feet (MLLW) 06:50 AM EDT. High 10.6 feet (MLLW) 12:49 PM EDT. .SUNDAY... Rip Current Risk*...........Low. Surf Height.................3 to 5 feet. Thunderstorm Potential**....None. Weather.....................Cloudy. Patchy fog. Rain. High Temperature............In the mid 50s. Winds.......................South winds around 10 mph, becoming west in the afternoon. Tides... Scituate Harbor..........Low -1.3 feet (MLLW) 07:15 AM EDT. High 9.7 feet (MLLW) 01:28 PM EDT. Plymouth.................Low -1.2 feet (MLLW) 07:37 AM EDT. High 10.6 feet (MLLW) 01:36 PM EDT. .MONDAY...Surf height 2 to 4 feet. Mostly sunny. A slight chance of showers. Highs in the upper 40s. West winds around 10 mph. .TUESDAY...Surf height 2 to 3 feet. Sunny. Highs in the mid 40s. Northeast winds around 10 mph. .WEDNESDAY...Surf height around 3 feet. Partly sunny. A slight chance of showers. Highs in the mid 50s. 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 $$ MAZ015-016-182200- Suffolk MA-Eastern Norfolk MA- Including the beaches of Boston, Chelsea, Revere, Winthrop, Braintree, Milton, Quincy, and Weymouth 411 AM EDT Sat Apr 18 2026 .TODAY... Rip Current Risk*...........Low. Surf Height.................2 to 3 feet. Thunderstorm Potential**....None. UV Index**..................Moderate. Water Temperature...........In the lower 40s. Weather.....................Cloudy. Areas of fog. High Temperature............In the upper 40s. Winds.......................Northeast winds around 10 mph. Tides... Boston...................Low -1.3 feet (MLLW) 06:25 AM EDT. High 10.5 feet (MLLW) 12:35 PM EDT. .SUNDAY... Rip Current Risk*...........Low. Surf Height.................Around 4 feet. Thunderstorm Potential**....None. Weather.....................Cloudy. Patchy fog. Rain. High Temperature............In the mid 50s. Winds.......................South winds around 5 mph, becoming west in the afternoon. Tides... Boston...................Low -1.5 feet (MLLW) 07:14 AM EDT. High 10.3 feet (MLLW) 01:25 PM EDT. .MONDAY...Surf height 2 to 4 feet. Mostly sunny. A slight chance of showers. Highs around 50. West winds around 10 mph. .TUESDAY...Surf height 2 to 3 feet. Sunny. Highs in the upper 40s. Northeast winds around 10 mph. .WEDNESDAY...Surf height around 3 feet. Partly sunny. A slight chance of showers. Highs in the mid 50s. 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 $$ MAZ007-182200- Eastern Essex MA- Including the beaches of Beverly, Gloucester, and Newburyport 411 AM EDT Sat Apr 18 2026 .TODAY... Rip Current Risk*...........Low. Surf Height.................Around 3 feet. Thunderstorm Potential**....None. UV Index**..................Moderate. Water Temperature...........In the lower 40s. Weather.....................Cloudy. Areas of fog. High Temperature............In the upper 40s. Winds.......................Northeast winds around 10 mph. Tides... Newburyport..............Low -0.9 feet (MLLW) 07:09 AM EDT. High 8.6 feet (MLLW) 01:04 PM EDT. Gloucester Harbor........Low -1.2 feet (MLLW) 06:23 AM EDT. High 9.6 feet (MLLW) 12:36 PM EDT. .SUNDAY... Rip Current Risk*...........Low. Surf Height.................4 to 5 feet. Thunderstorm Potential**....None. Weather.....................Cloudy. Patchy fog. Rain. High Temperature............In the lower 50s. Winds.......................South winds around 5 mph, becoming west in the afternoon. Tides... Newburyport..............Low -1.1 feet (MLLW) 07:58 AM EDT. High 8.6 feet (MLLW) 01:52 PM EDT. Gloucester Harbor........Low -1.4 feet (MLLW) 07:12 AM EDT. High 9.6 feet (MLLW) 01:25 PM EDT. .MONDAY...Surf height 2 to 4 feet. Mostly sunny. Highs in the upper 40s. West winds around 10 mph. .TUESDAY...Surf height 2 to 3 feet. Sunny. Highs in the mid 40s. Northeast winds around 10 mph. .WEDNESDAY...Surf height 3 to 4 feet. Partly sunny. A slight chance of showers. Highs in the mid 50s. Southwest winds around 10 mph. && Rip Current Risk Category * Low Risk - The risk for rip currents is low, however, life-threatening rip currents often occur in the vicinity of groins, jetties, reefs, and piers. * Moderate Risk - Life-threatening rip currents are possible in the surf zone. * High Risk - Life-threatening rip currents are likely in the surf zone. ** For thunderstorm, waterspout, and UV definitions see: https://www.weather.gov/beach/box $$