


Coastal Waters Forecast
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
981 FZCA52 TJSJ 091956 CWFSJU Coastal Waters Forecast National Weather Service San Juan PR 356 PM AST Sun Mar 9 2025 Puerto Rico and the U.S. Virgin Islands Waters AMZ700-100815- 356 PM AST Sun Mar 9 2025 .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS... A surface high pressure will build and migrate toward the central Atlantic early this week, while a surface low and associated frontal boundary moves across the western Atlantic. This will shift the winds from the east-southeast through Thursday. By the end of the week, the front shall increase the potential for showers across the local waters by Thursday and Friday. Another long-period northerly swell will spread across the Atlantic waters and local passages next weekend, resulting in hazardous seas once again. $$ AMZ711-100815- Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 356 PM AST Sun Mar 9 2025 .TONIGHT...East winds 5 to 10 knots. Seas around 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 11 seconds and east 3 feet at 9 seconds. Isolated showers late this evening and overnight. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 10 seconds and east 3 feet at 4 seconds. .MONDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 3 feet at 5 seconds and east 3 feet at 9 seconds. .TUESDAY...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds and east 3 feet at 9 seconds. .TUESDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 8 seconds and southeast 2 feet at 5 seconds. .WEDNESDAY...South winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 2 feet at 4 seconds and east 2 feet at 8 seconds. Scattered showers in the morning. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. .THURSDAY...Northeast winds 5 to 10 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers in the morning. .THURSDAY NIGHT...Northeast winds 10 to 15 knots. Seas 5 to 6 feet, occasionally to 8 feet. Scattered showers. .FRIDAY...East winds 10 to 15 knots. Seas around 5 feet, occasionally to 6 feet. Scattered showers in the morning, then numerous showers in the afternoon. .FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Numerous showers. $$ AMZ712-100815- Coastal Waters of Northern Puerto Rico out 10 NM- 356 PM AST Sun Mar 9 2025 .TONIGHT...East winds 5 to 10 knots. Seas around 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 11 seconds and northeast 3 feet at 10 seconds. Isolated showers after midnight. .MONDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 10 seconds and east 2 feet at 4 seconds. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: North 3 feet at 10 seconds and east 2 feet at 5 seconds. .TUESDAY...East winds 5 to 10 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 2 feet at 5 seconds and north 2 feet at 9 seconds. .TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south after midnight. Seas around 3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at 5 seconds and northeast 2 feet at 9 seconds. .WEDNESDAY...Southeast winds around 5 knots, becoming northeast in the afternoon. Seas around 3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at 5 seconds and east 2 feet at 9 seconds. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 3 feet, occasionally to 4 feet. .THURSDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 5 feet, occasionally to 6 feet. Scattered showers. .FRIDAY...East winds 5 to 10 knots, becoming northeast 10 to 15 knots in the afternoon. Seas around 5 feet, occasionally to 6 feet. Scattered showers in the morning, then numerous showers in the afternoon. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet, occasionally to 6 feet. Numerous showers. $$ AMZ716-100815- Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM- 356 PM AST Sun Mar 9 2025 .TONIGHT...East winds around 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest 4 feet at 10 seconds and east 2 feet at 10 seconds. Isolated showers after midnight. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest 4 feet at 11 seconds and east 3 feet at 4 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 4 seconds and northwest 3 feet at 10 seconds. .TUESDAY...Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 4 seconds and north 2 feet at 10 seconds. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 2 feet at 5 seconds and north 2 feet at 9 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: North 2 feet at 9 seconds and southeast 1 foot at 5 seconds. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. .THURSDAY...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. .THURSDAY NIGHT...Northeast winds around 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers. .FRIDAY...East winds around 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Numerous showers. $$ AMZ723-100815- Anegada Passage east of Virgin Gorda and Saint Croix south to 17N- 356 PM AST Sun Mar 9 2025 .TONIGHT...East winds 10 to 15 knots. Seas around 3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at 4 seconds and northeast 2 feet at 10 seconds. Isolated showers late this evening and overnight. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 4 seconds and northeast 2 feet at 9 seconds. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and northeast 2 feet at 9 seconds. .TUESDAY...Southeast winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and northeast 2 feet at 9 seconds. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds and northeast 1 foot at 9 seconds. Scattered showers. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers in the afternoon. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet, occasionally to 4 feet. Scattered showers. .THURSDAY...East winds 5 to 10 knots. Seas around 2 feet. .THURSDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. .FRIDAY...East winds around 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. .FRIDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers. $$ AMZ726-100815- Coastal waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John- 356 PM AST Sun Mar 9 2025 .TONIGHT...East winds around 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 2 feet at 4 seconds and east 2 feet at 8 seconds. Isolated showers after midnight. Scattered showers late. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 4 seconds and northwest 2 feet at 9 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 9 seconds. .TUESDAY...Southeast winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 9 seconds. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 1 foot at 8 seconds. .WEDNESDAY...Southeast winds around 5 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. .THURSDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered showers in the morning. .THURSDAY NIGHT...Northeast winds around 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. .FRIDAY...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Numerous showers. $$ AMZ733-100815- Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix- 356 PM AST Sun Mar 9 2025 .TONIGHT...East winds 10 to 15 knots. Seas around 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 4 seconds and east 2 feet at 9 seconds. Isolated showers late this evening and overnight. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 9 seconds. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 9 seconds. .TUESDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 9 seconds. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 6 seconds and northeast 1 foot at 9 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 2 feet at 6 seconds and northeast 1 foot at 9 seconds. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers. .THURSDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers in the morning. .THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet, occasionally to 4 feet. .FRIDAY...East winds around 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. .FRIDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. $$ AMZ735-100815- Coastal Waters of Southern Puerto Rico out 10 NM- 356 PM AST Sun Mar 9 2025 .TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds and east 1 foot at 8 seconds. Isolated showers. .MONDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds and east 1 foot at 8 seconds. .MONDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds and east 1 foot at 8 seconds. .TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 6 seconds. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds around 5 knots, becoming northeast after midnight. Seas around 2 feet. .THURSDAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. .FRIDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered showers in the afternoon. .FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Scattered showers. $$ AMZ741-100815- Mona Passage Southward to 17N- 356 PM AST Sun Mar 9 2025 .TONIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: North 3 feet at 12 seconds and east 2 feet at 5 seconds. Isolated showers. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 3 feet at 5 seconds and north 3 feet at 11 seconds. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds and north 3 feet at 10 seconds. .TUESDAY...Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds and northeast 2 feet at 9 seconds. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds and north 2 feet at 9 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at 7 seconds and north 2 feet at 11 seconds. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. .THURSDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. .THURSDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers. .FRIDAY...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers in the afternoon. .FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers. $$ AMZ742-100815- Coastal Waters of Northwestern Puerto Rico out 10 NM- 356 PM AST Sun Mar 9 2025 .TONIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots after midnight, then diminishing to 5 to 10 knots with gusts up to 20 knots late. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: North 4 feet at 10 seconds. Isolated showers early this evening. .MONDAY...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: North 4 feet at 12 seconds. .MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: North 3 feet at 10 seconds and southeast 2 feet at 3 seconds. .TUESDAY...Southeast winds 5 to 10 knots, becoming south with gusts up to 20 knots in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: North 3 feet at 10 seconds and southeast 2 feet at 4 seconds. Scattered showers in the afternoon. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: South 2 feet at 4 seconds and north 2 feet at 10 seconds. .WEDNESDAY...Southeast winds around 5 knots, becoming southwest in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: South 1 foot at 4 seconds and north 1 foot at 8 seconds. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. .THURSDAY...Northeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. .THURSDAY NIGHT...Northeast winds 10 to 15 knots, becoming east 5 to 10 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet. .FRIDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers in the afternoon. .FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. $$ AMZ745-100815- Coastal Waters of Southwestern Puerto Rico out 10 NM- 356 PM AST Sun Mar 9 2025 .TONIGHT...East winds around 5 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Northwest 3 feet at 9 seconds and southeast 1 foot at 5 seconds. Isolated showers early this evening. .MONDAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northwest 3 feet at 11 seconds and southeast 2 feet at 5 seconds. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northwest 3 feet at 11 seconds and southeast 2 feet at 4 seconds. .TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 2 feet at 5 seconds and north 2 feet at 10 seconds. .TUESDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 2 feet at 4 seconds and northwest 2 feet at 9 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots, becoming south in the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds and northwest 1 foot at 9 seconds. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. .THURSDAY...Northeast winds around 5 knots, becoming north in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers in the afternoon. .THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. .FRIDAY...East winds around 5 knots. Seas 3 to 4 feet, occasionally to 5 feet. Numerous showers in the afternoon. .FRIDAY NIGHT...Northeast winds around 5 knots. Seas 2 to 4 feet, occasionally to 5 feet. $$