Coastal Waters Forecast
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
933 FZCA52 TJSJ 130719 CWFSJU Coastal Waters Forecast National Weather Service San Juan PR 319 AM AST Thu Nov 13 2025 Puerto Rico and the U.S. Virgin Islands Waters AMZ700-132030- 319 AM AST Thu Nov 13 2025 .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS... A north-northwesterly swell will continue to arrive today, deteriorating marine conditions. Conditions are expected to gradually improve tomorrow. A broad surface high pressure over the north-central Atlantic will continue to promote moderate to locally fresh easterly winds across the regional waters during the next few days, keeping choppy to occasionally rough seas. $$ AMZ711-132030- Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 319 AM AST Thu Nov 13 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 7 feet. Wave Detail: Northwest 6 feet at 12 seconds and east 5 feet at 8 seconds. Scattered showers. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 6 to 7 feet. Wave Detail: Northwest 5 feet at 11 seconds and east 4 feet at 8 seconds. Scattered showers. .FRIDAY...East winds 5 to 10 knots. Seas 5 to 6 feet. Wave Detail: North 4 feet at 11 seconds and east 3 feet at 8 seconds. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet. Wave Detail: North 4 feet at 10 seconds and east 3 feet at 8 seconds. .SATURDAY...Southeast winds around 5 knots, becoming north around 5 knots in the afternoon. Seas around 4 feet. Wave Detail: North 3 feet at 9 seconds and east 2 feet at 8 seconds. Scattered showers in the morning. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: East 2 feet at 8 seconds and north 2 feet at 9 seconds. Scattered showers. .SUNDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Scattered showers. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet. Scattered showers. .MONDAY...East winds 5 to 10 knots. Seas 4 to 5 feet. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots. Seas around 5 feet. Scattered showers. $$ AMZ712-132030- Coastal Waters of Northern Puerto Rico out 10 NM- 319 AM AST Thu Nov 13 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots this afternoon. Seas 6 to 7 feet. Wave Detail: Northwest 5 feet at 13 seconds and northeast 4 feet at 8 seconds. Scattered showers this morning, then isolated showers early this afternoon. Scattered showers late. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 6 to 7 feet. Wave Detail: Northwest 5 feet at 11 seconds and east 4 feet at 8 seconds. Scattered showers. .FRIDAY...East winds 5 to 10 knots. Seas 5 to 6 feet. Wave Detail: North 4 feet at 11 seconds and east 3 feet at 8 seconds. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet. Wave Detail: North 4 feet at 10 seconds and east 2 feet at 8 seconds. .SATURDAY...Southeast winds around 5 knots, becoming north in the afternoon. Seas 3 to 4 feet. Wave Detail: North 3 feet at 9 seconds and east 2 feet at 8 seconds. .SATURDAY NIGHT...Northeast winds around 5 knots, becoming southeast after midnight. Seas around 3 feet. Wave Detail: North 3 feet at 9 seconds and east 2 feet at 8 seconds. Scattered showers. .SUNDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Scattered showers in the morning, then numerous showers in the afternoon. .SUNDAY NIGHT...East winds around 5 knots. Seas 3 to 4 feet. .MONDAY...East winds 5 to 10 knots. Seas 4 to 5 feet. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 5 to 10 knots. Seas around 5 feet. Scattered showers. $$ AMZ716-132030- Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM- 319 AM AST Thu Nov 13 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TODAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: Northwest 5 feet at 13 seconds and east 4 feet at 5 seconds. Scattered showers early this morning, then isolated showers late this morning and afternoon. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 5 to 6 feet. Wave Detail: Northwest 5 feet at 12 seconds and east 3 feet at 7 seconds. .FRIDAY...East winds 5 to 10 knots. Seas 4 to 6 feet. Wave Detail: Northwest 4 feet at 10 seconds and east 3 feet at 7 seconds. Scattered showers in the afternoon. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Northwest 4 feet at 11 seconds and east 2 feet at 8 seconds. Scattered showers in the evening. .SATURDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: North 3 feet at 10 seconds and northeast 2 feet at 14 seconds. Scattered showers in the morning. .SATURDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet. Wave Detail: North 3 feet at 9 seconds and northeast 2 feet at 13 seconds. .SUNDAY...East winds around 5 knots. Seas 2 to 3 feet. Scattered showers. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. Scattered showers. .MONDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. Scattered showers. $$ AMZ723-132030- Anegada Passage east of Virgin Gorda and Saint Croix south to 17N- 319 AM AST Thu Nov 13 2025 .TODAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds and northeast 2 feet at 14 seconds. Isolated showers. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 7 seconds and northeast 2 feet at 14 seconds. .FRIDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds and northeast 2 feet at 14 seconds. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet. Wave Detail: East 2 feet at 6 seconds and northeast 2 feet at 14 seconds. Scattered showers after midnight. .SATURDAY...Southeast winds 5 to 10 knots, diminishing to around 5 knots in the afternoon. Seas around 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and northeast 2 feet at 14 seconds. .SATURDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 7 seconds and northeast 2 feet at 13 seconds. .SUNDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet. .MONDAY...East winds around 10 knots. Seas 3 to 4 feet. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet. Scattered showers. $$ AMZ726-132030- Coastal waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John- 319 AM AST Thu Nov 13 2025 .TODAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 6 seconds. Isolated showers. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 5 feet. Wave Detail: East 3 feet at 7 seconds and northwest 2 feet at 7 seconds. .FRIDAY...East winds around 10 knots, diminishing to around 5 knots in the afternoon. Seas 3 to 5 feet. Wave Detail: East 3 feet at 7 seconds and northwest 2 feet at 10 seconds. Scattered showers in the afternoon. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail: East 2 feet at 7 seconds. Scattered showers in the evening. .SATURDAY...Southeast winds around 5 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 7 seconds. Scattered showers in the morning. .SATURDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds. .SUNDAY...East winds around 5 knots. Seas around 2 feet. Scattered showers in the morning. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers. .MONDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers. $$ AMZ733-132030- Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix- 319 AM AST Thu Nov 13 2025 .TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds. Scattered showers. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 7 seconds. Scattered showers after midnight. .FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds and northwest 1 foot at 10 seconds. Scattered showers in the afternoon. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds and northwest 1 foot at 6 seconds. Scattered showers. .SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 7 seconds. .SATURDAY NIGHT...East winds around 5 knots. Seas around 2 feet. Wave Detail: East 2 feet at 6 seconds. .SUNDAY...East winds 5 to 10 knots. Seas around 2 feet. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Scattered showers. .MONDAY...East winds around 10 knots. Seas 2 to 3 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers. $$ AMZ735-132030- Coastal Waters of Southern Puerto Rico out 10 NM- 319 AM AST Thu Nov 13 2025 .TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds. Isolated showers early this morning. Scattered showers late this morning and early afternoon, then isolated showers late. .TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers in the evening. .FRIDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds. .FRIDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. .SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. .SATURDAY NIGHT...Northeast winds around 5 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. .SUNDAY...East winds 5 to 10 knots. Seas around 2 feet. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Scattered showers. .MONDAY...East winds 5 to 10 knots. Seas around 2 feet. .MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. $$ AMZ741-132030- Mona Passage Southward to 17N- 319 AM AST Thu Nov 13 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at 6 seconds and north 4 feet at 13 seconds. Scattered showers early this morning. Isolated showers late this morning and early afternoon, then scattered showers late. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 5 to 6 feet. Wave Detail: East 4 feet at 6 seconds and north 4 feet at 11 seconds. Scattered showers. .FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots in the afternoon. Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds and north 3 feet at 10 seconds. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds and north 3 feet at 11 seconds. Scattered showers in the evening. .SATURDAY...East winds 5 to 10 knots, becoming northeast in the afternoon. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds and north 3 feet at 9 seconds. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 3 feet. Wave Detail: East 2 feet at 7 seconds and north 2 feet at 9 seconds. .SUNDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. .MONDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. Scattered showers. $$ AMZ742-132030- Coastal Waters of Northwestern Puerto Rico out 10 NM- 319 AM AST Thu Nov 13 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...East winds 5 to 10 knots. Seas 5 to 7 feet. Wave Detail: Northwest 5 feet at 14 seconds and northeast 3 feet at 6 seconds. Scattered showers early this afternoon. Isolated thunderstorms this afternoon. Showers late. .TONIGHT...East winds 5 to 10 knots. Seas 4 to 6 feet. Wave Detail: Northwest 5 feet at 11 seconds and northeast 2 feet at 5 seconds. Showers in the evening. .FRIDAY...East winds around 5 knots, becoming north in the afternoon. Seas 3 to 5 feet. Wave Detail: Northwest 4 feet at 10 seconds and northeast 2 feet at 6 seconds. .FRIDAY NIGHT...Northeast winds 5 to 10 knots, becoming east after midnight. Seas 3 to 4 feet. Wave Detail: North 4 feet at 11 seconds and east 1 foot at 6 seconds. .SATURDAY...South winds around 5 knots, becoming northwest in the afternoon. Seas 2 to 4 feet. Wave Detail: North 3 feet at 9 seconds and southeast 1 foot at 6 seconds. .SATURDAY NIGHT...Northeast winds around 5 knots. Seas 2 to 3 feet. Wave Detail: North 3 feet at 9 seconds and southeast 1 foot at 5 seconds. .SUNDAY...Northeast winds around 5 knots. Seas 2 to 3 feet. Scattered showers. .SUNDAY NIGHT...East winds around 5 knots. Seas 2 to 4 feet. .MONDAY...East winds around 5 knots. Seas 2 to 4 feet. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet. Scattered showers. Winds and seas higher in and near thunderstorms. $$ AMZ745-132030- Coastal Waters of Southwestern Puerto Rico out 10 NM- 319 AM AST Thu Nov 13 2025 .TODAY...East winds around 5 knots, increasing to 5 to 10 knots late. Seas 2 to 4 feet, building to 4 to 5 feet this afternoon. Wave Detail: Northwest 3 feet at 12 seconds and southeast 2 feet at 6 seconds, becoming northwest 4 feet at 12 seconds and southeast 2 feet at 6 seconds. Isolated showers early this afternoon. Scattered showers with isolated thunderstorms late. .TONIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet. Wave Detail: Northwest 4 feet at 10 seconds and southeast 2 feet at 6 seconds. Numerous showers in the evening. .FRIDAY...Southeast winds around 5 knots. Seas 3 to 4 feet. Wave Detail: Northwest 3 feet at 10 seconds and southeast 2 feet at 6 seconds. Scattered showers in the afternoon. .FRIDAY NIGHT...East winds around 5 knots. Seas 2 to 4 feet. Wave Detail: Northwest 3 feet at 10 seconds and south 1 foot at 6 seconds. .SATURDAY...Southeast winds around 5 knots, becoming west in the afternoon. Seas 2 to 3 feet. Wave Detail: Northwest 3 feet at 10 seconds and southeast 1 foot at 6 seconds. .SATURDAY NIGHT...Northeast winds around 5 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 9 seconds and south 1 foot at 5 seconds. .SUNDAY...Southeast winds around 5 knots. Seas around 2 feet. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds around 5 knots. Seas around 2 feet. .MONDAY...Southeast winds around 5 knots. Seas 2 to 3 feet. .MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$