


Coastal Waters Forecast
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
629 FZCA52 TJSJ 282046 CWFSJU Coastal Waters Forecast National Weather Service San Juan PR 446 PM AST Thu Aug 28 2025 Puerto Rico and the U.S. Virgin Islands Waters AMZ700-290915- 446 PM AST Thu Aug 28 2025 .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS... The trailing moisture from a tropical wave, moving near PR and the USVI will promote showers and thunderstorms this through tomorrow. Another weak tropical wave will enter the Lesser Antilles by Saturday. Mariners can expect moderate east to east- southeast winds and moderate chops across the regional waters the rest of the weekend into early next week. $$ AMZ711-290915- Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 446 PM AST Thu Aug 28 2025 .REST OF TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet. Wave Detail: East 3 feet at 7 seconds and northeast 2 feet at 10 seconds. Isolated showers. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet. Wave Detail: East 3 feet at 7 seconds and northeast 2 feet at 10 seconds. Scattered showers after midnight. .FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds and northeast 2 feet at 11 seconds. .FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds and northeast 1 foot at 10 seconds. Scattered showers in the evening. .SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds and northeast 1 foot at 10 seconds. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds and northeast 1 foot at 10 seconds. .SUNDAY...East winds 10 to 15 knots. Seas around 3 feet. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. .MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. $$ AMZ712-290915- Coastal Waters of Northern Puerto Rico out 10 NM- 446 PM AST Thu Aug 28 2025 .REST OF TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds and northeast 2 feet at 11 seconds. Scattered showers with isolated thunderstorms. .TONIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 7 seconds and northeast 2 feet at 11 seconds. Scattered showers after midnight. .FRIDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds and northeast 2 feet at 10 seconds. Scattered showers in the morning. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds and northeast 2 feet at 11 seconds. Scattered showers in the evening. .SATURDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 25 knots in the afternoon. Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds and northeast 1 foot at 10 seconds. Scattered showers in the morning. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds and northeast 1 foot at 10 seconds. .SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. .MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. .MONDAY NIGHT...East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$ AMZ716-290915- Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM- 446 PM AST Thu Aug 28 2025 .REST OF TODAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and northeast 2 feet at 11 seconds. Isolated showers. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds and northeast 2 feet at 11 seconds. Scattered showers. .FRIDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds and northeast 2 feet at 10 seconds. .FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds and northeast 1 foot at 11 seconds. .SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds and northeast 1 foot at 10 seconds. Scattered showers in the morning. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds and northeast 1 foot at 10 seconds. Scattered showers after midnight. .SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. .SUNDAY NIGHT...East winds around 10 knots. Seas around 2 feet. .MONDAY...East winds around 10 knots. Seas around 2 feet. Scattered showers in the morning. .MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. $$ AMZ723-290915- Anegada Passage east of Virgin Gorda and Saint Croix south to 17N- 446 PM AST Thu Aug 28 2025 .REST OF TODAY...Southeast winds 5 to 10 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds and northeast 2 feet at 11 seconds. Scattered showers. .TONIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds and northeast 2 feet at 11 seconds. Scattered showers. .FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds and northeast 2 feet at 11 seconds. Scattered showers in the afternoon. .FRIDAY NIGHT...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 and northeast 1 foot at 11 seconds. Scattered showers in the evening. .SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds and northeast 1 foot at 10 seconds. Scattered showers in the afternoon. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast 1 foot at 10 seconds. .SUNDAY...East winds 10 to 15 knots. Seas around 3 feet. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers. .MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet. $$ AMZ726-290915- Coastal waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John- 446 PM AST Thu Aug 28 2025 .REST OF TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. Isolated showers. .TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. Scattered showers. .FRIDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers in the morning. .FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers. .SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers in the morning. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers after midnight. .SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. .SUNDAY NIGHT...East winds around 10 knots. Seas around 2 feet. Scattered showers. .MONDAY...East winds 10 to 15 knots. Seas around 2 feet. Scattered showers in the morning. .MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. $$ AMZ733-290915- Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix- 446 PM AST Thu Aug 28 2025 .REST OF TODAY...Southeast winds 5 to 10 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds and northeast 1 foot at 10 seconds. Scattered showers with isolated thunderstorms. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds and northeast 1 foot at 10 seconds. Scattered showers. .FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers in the morning. .FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers in the evening. .SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers in the afternoon. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds. .SUNDAY...East winds 10 to 15 knots. Seas around 3 feet. Scattered showers in the morning. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. .MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$ AMZ735-290915- Coastal Waters of Southern Puerto Rico out 10 NM- 446 PM AST Thu Aug 28 2025 .REST OF TODAY...Southeast winds around 10 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Isolated showers. .TONIGHT...East winds 5 to 10 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds. Scattered showers. .FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers in the morning. .FRIDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. .SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. .SATURDAY NIGHT...East winds 5 to 10 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. .SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. .MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. .MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. $$ AMZ741-290915- Mona Passage Southward to 17N- 446 PM AST Thu Aug 28 2025 .REST OF TODAY...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet. Wave Detail: Southeast 3 feet at 5 seconds and north 2 feet at 11 seconds. Scattered showers with isolated thunderstorms. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds and north 2 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 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds and north 2 feet at 10 seconds. Scattered showers in the morning. .FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds and north 2 feet at 10 seconds. .SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 5 seconds and northeast 1 foot at 10 seconds. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 5 seconds and northeast 1 foot at 10 seconds. Scattered showers after midnight. .SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. .MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$ AMZ742-290915- Coastal Waters of Northwestern Puerto Rico out 10 NM- 446 PM AST Thu Aug 28 2025 .REST OF TODAY...East winds around 5 knots. Seas 2 to 4 feet. Wave Detail: Southeast 2 feet at 4 seconds and north 2 feet at 11 seconds. Scattered showers with isolated thunderstorms. .TONIGHT...East winds around 5 knots, increasing to 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and north 2 feet at 11 seconds. .FRIDAY...Northeast winds around 5 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and northeast 2 feet at 10 seconds. Numerous showers in the afternoon. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and northeast 2 feet at 10 seconds. .SATURDAY...East winds 5 to 10 knots, becoming northeast in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and northeast 1 foot at 10 seconds. Numerous showers in the afternoon. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds and northeast 1 foot at 10 seconds. Scattered showers in the evening. .SUNDAY...East winds 5 to 10 knots, becoming northeast in the afternoon. Seas around 2 feet. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. .MONDAY...East winds around 5 knots. Seas around 2 feet. Numerous showers in the afternoon. .MONDAY NIGHT...East winds around 5 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$ AMZ745-290915- Coastal Waters of Southwestern Puerto Rico out 10 NM- 446 PM AST Thu Aug 28 2025 .REST OF TODAY...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and northwest 1 foot at 11 seconds. Isolated showers. .TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and northwest 1 foot at 11 seconds. .FRIDAY...East winds 5 to 10 knots, diminishing to around 5 knots in the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds and north 1 foot at 10 seconds. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. .SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Scattered showers in the afternoon. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Scattered showers in the evening. .SUNDAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas around 2 feet. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. .MONDAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas around 2 feet. .MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. $$