


Coastal Waters Forecast
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
999 FZCA52 TJSJ 120822 CWFSJU Coastal Waters Forecast National Weather Service San Juan PR 422 AM AST Sun Oct 12 2025 Puerto Rico and the U.S. Virgin Islands Waters AMZ700-122130- 422 AM AST Sun Oct 12 2025 .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS... Gentle to moderate east to southeast winds will prevail over the next few days as the remnants of Jerry shift well north of the area and a surface high pressure builds across the Central Atlantic. Above normal moisture content will continue to result in showers and thunderstorms across the waters this morning, and across the norwestern waters of Puerto Rico this afternoon. Seas generally below 5 feet throughout the forecast period. $$ AMZ711-122130- Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 422 AM AST Sun Oct 12 2025 .TODAY...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 9 seconds and north 3 feet at 11 seconds. Scattered showers with isolated thunderstorms this morning, then isolated showers this afternoon. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 9 seconds and north 3 feet at 10 seconds. .MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 9 seconds and southeast 1 foot at 4 seconds. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 8 seconds. Scattered showers. .TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots in the afternoon. Seas 4 to 5 feet. Wave Detail: East 4 feet at 8 seconds and northwest 1 foot at 11 seconds. Scattered showers in the morning. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 8 seconds and northwest 1 foot at 10 seconds. Scattered showers. .WEDNESDAY...Southeast winds 5 to 10 knots, becoming south in the afternoon. Seas around 3 feet. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 3 feet. Numerous showers. .THURSDAY...Southwest winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers in the morning, then numerous showers in the afternoon. .THURSDAY NIGHT...Southwest winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 3 to 5 feet. Scattered showers. Winds and seas higher in and near thunderstorms. $$ AMZ712-122130- Coastal Waters of Northern Puerto Rico out 10 NM- 422 AM AST Sun Oct 12 2025 .TODAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds and north 2 feet at 11 seconds. Scattered showers with isolated thunderstorms. .TONIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 9 seconds and north 3 feet at 10 seconds. .MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas around 4 feet. Wave Detail: Northeast 4 feet at 9 seconds and east 3 feet at 5 seconds. Scattered showers. .MONDAY NIGHT...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 3 feet at 9 seconds. Numerous showers after midnight. .TUESDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 8 seconds. Scattered showers. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 8 seconds and northwest 1 foot at 11 seconds. Scattered showers. .WEDNESDAY...Southeast winds around 5 knots, becoming west in the afternoon. Seas around 3 feet. Scattered showers in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 3 feet. Scattered showers. .THURSDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 3 feet. Winds and seas higher in and near thunderstorms. $$ AMZ716-122130- Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM- 422 AM AST Sun Oct 12 2025 .TODAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and northeast 2 feet at 9 seconds. Scattered showers with isolated thunderstorms early this morning, then isolated showers late this morning and afternoon. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: East 3 feet at 4 seconds and east 2 feet at 9 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds and northeast 2 feet at 8 seconds. Scattered showers. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 5 seconds and northeast 2 feet at 9 seconds. Scattered showers. .TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: East 3 feet at 5 seconds and northeast 2 feet at 9 seconds. Scattered showers. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 8 seconds and east 2 feet at 5 seconds. Scattered showers in the evening. .WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. .WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas 2 to 3 feet. .THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers in the afternoon. .THURSDAY NIGHT...Southwest winds around 10 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$ AMZ723-122130- Anegada Passage east of Virgin Gorda and Saint Croix south to 17N- 422 AM AST Sun Oct 12 2025 .TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet. Wave Detail: Southeast 4 feet at 6 seconds and northeast 2 feet at 9 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 around 4 feet. Wave Detail: Southeast 4 feet at 6 seconds and east 3 feet at 9 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 5 seconds and east 2 feet at 9 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet. Wave Detail: East 3 feet at 5 seconds and northeast 3 feet at 9 seconds. Scattered showers. .TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds and northeast 3 feet at 9 seconds. Scattered showers in the afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 8 seconds and southeast 2 feet at 5 seconds. Scattered showers in the evening. .WEDNESDAY...Southeast winds 5 to 10 knots, becoming south in the afternoon. Seas 2 to 3 feet. Scattered showers in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers. .THURSDAY...Southwest winds around 10 knots. Seas 2 to 3 feet. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers. $$ AMZ726-122130- Coastal waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John- 422 AM AST Sun Oct 12 2025 .TODAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: East 3 feet at 7 seconds. Scattered showers early this morning. Isolated thunderstorms this morning. Isolated showers late this morning and afternoon. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: East 3 feet at 7 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds and east 3 feet at 8 seconds. Scattered showers. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds and east 3 feet at 8 seconds. Scattered showers. .TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: East 3 feet at 5 seconds and east 3 feet at 8 seconds. Scattered showers. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 2 feet at 8 seconds. Scattered showers. .WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet. Scattered showers in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. .THURSDAY...Southwest winds 10 to 15 knots. Seas around 2 feet. Scattered showers in the afternoon. .THURSDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$ AMZ733-122130- Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix- 422 AM AST Sun Oct 12 2025 .TODAY...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots late. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds. Numerous showers early this morning. Isolated thunderstorms this morning. Scattered showers late this morning and afternoon. .TONIGHT...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. .MONDAY...East winds around 15 knots with gusts up to 25 knots. Seas around 4 feet. Wave Detail: East 4 feet at 7 seconds. Scattered showers. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet. Wave Detail: East 4 feet at 7 seconds. Scattered showers. .TUESDAY...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. Scattered showers. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds. Scattered showers. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Scattered showers. .THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Scattered showers. Winds and seas higher in and near thunderstorms. $$ AMZ735-122130- Coastal Waters of Southern Puerto Rico out 10 NM- 422 AM AST Sun Oct 12 2025 .TODAY...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots late. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds. Scattered showers with isolated thunderstorms this morning, then isolated showers this afternoon. .TONIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. Scattered showers in the evening. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. .MONDAY NIGHT...East winds 10 to 15 knots, becoming northeast 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers after midnight. .TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers in the morning. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. Scattered showers after midnight. .WEDNESDAY...Southeast winds around 5 knots, becoming south in the afternoon. Seas around 2 feet. Scattered showers. .WEDNESDAY NIGHT...Southwest winds around 5 knots. Seas around 2 feet. .THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. .THURSDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less. Scattered showers. Winds and seas higher in and near thunderstorms. $$ AMZ741-122130- Mona Passage Southward to 17N- 422 AM AST Sun Oct 12 2025 .TODAY...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet. Wave Detail: Southeast 4 feet at 7 seconds and northeast 2 feet at 10 seconds. Numerous showers early this morning. Isolated thunderstorms this morning. Scattered showers late this morning and afternoon. .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 9 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds and north 2 feet at 10 seconds. Scattered showers. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 6 seconds and north 2 feet at 10 seconds. Scattered showers after midnight. .TUESDAY...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 4 feet at 6 seconds and north 2 feet at 9 seconds. Scattered showers. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds and northeast 2 feet at 9 seconds. Scattered showers. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. .THURSDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers. Winds and seas higher in and near thunderstorms. $$ AMZ742-122130- Coastal Waters of Northwestern Puerto Rico out 10 NM- 422 AM AST Sun Oct 12 2025 .TODAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots early this afternoon, then becoming east 5 to 10 knots with gusts up to 20 knots late. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds and northeast 2 feet at 10 seconds. Isolated showers early this morning. Numerous showers with isolated thunderstorms this afternoon. .TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds and north 1 foot at 12 seconds. Numerous showers in the evening. .MONDAY...East winds around 5 knots, becoming northeast in the afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. Numerous showers in the afternoon. .MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and north 2 feet at 10 seconds. Scattered showers in the evening. .TUESDAY...East winds 5 to 10 knots, becoming northeast in the afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds and north 2 feet at 9 seconds. Numerous showers in the afternoon. .TUESDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds and north 2 feet at 9 seconds. Numerous showers in the evening. .WEDNESDAY...Southeast winds 5 to 10 knots, becoming south in the afternoon. Seas 2 to 3 feet. Scattered showers. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers. .THURSDAY...Southwest winds around 10 knots. Seas 2 to 3 feet. Scattered showers. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$ AMZ745-122130- Coastal Waters of Southwestern Puerto Rico out 10 NM- 422 AM AST Sun Oct 12 2025 .TODAY...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. Scattered showers with isolated thunderstorms early this morning, then isolated showers late this morning. Scattered showers with isolated thunderstorms this afternoon. .TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds and northwest 2 feet at 11 seconds. Numerous showers in the evening. .MONDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and northwest 2 feet at 10 seconds. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and northwest 2 feet at 10 seconds. Scattered showers in the evening. .TUESDAY...East winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds and northwest 1 foot at 9 seconds. Scattered showers in the afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 6 seconds and northwest 1 foot at 10 seconds. Scattered showers in the evening. .WEDNESDAY...Southeast winds 5 to 10 knots, becoming south in the afternoon. Seas around 2 feet. Scattered showers. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. .THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Scattered showers in the afternoon. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$