Coastal Waters Forecast
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
677 FZCA52 TJSJ 012010 CWFSJU Coastal Waters Forecast National Weather Service San Juan PR 410 PM AST Sat Nov 1 2025 Puerto Rico and the U.S. Virgin Islands Waters AMZ700-020915- 410 PM AST Sat Nov 1 2025 .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS... A surface high pressure system over the central Atlantic and a tropical wave moving across the region today will promote moderate to locally fresh trade winds through the rest of the weekend. Additionally, thunderstorm activity is expected across the local waters and passages as the tropical wave moves through the region. Wind-driven, choppy to hazardous seas are expected from this evening through Sunday, particularly across the offshore Atlantic and Caribbean waters, and the Mona Passage, where small craft advisories are in effect. Winds and seas are forecast to improve early next workweek. $$ AMZ711-020915- Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 410 PM AST Sat Nov 1 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 6 to 7 feet. Wave Detail: East 5 feet at 6 seconds and northwest 3 feet at 9 seconds. Scattered showers with isolated thunderstorms early this evening, then isolated showers late this evening and overnight. .SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 6 to 7 feet. Wave Detail: East 5 feet at 7 seconds and northwest 2 feet at 9 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 7 seconds and northwest 2 feet at 9 seconds. .MONDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds and northwest 2 feet at 8 seconds. Scattered showers. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 7 seconds and northeast 2 feet at 10 seconds. Scattered showers. .TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 7 seconds and northeast 2 feet at 10 seconds. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. .WEDNESDAY...East winds around 10 knots. Seas around 4 feet. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet. Scattered showers. .THURSDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Scattered showers in the morning. .THURSDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet. Scattered showers. Winds and seas higher in and near thunderstorms. $$ AMZ712-020915- Coastal Waters of Northern Puerto Rico out 10 NM- 410 PM AST Sat Nov 1 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 4 feet at 6 seconds and north 3 feet at 11 seconds. Isolated showers. .SUNDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 4 feet at 7 seconds and northwest 3 feet at 9 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 7 seconds and northwest 2 feet at 9 seconds. .MONDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds and northeast 2 feet at 11 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds 15 to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds and northeast 2 feet at 10 seconds. Scattered showers. .TUESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas around 4 feet. Wave Detail: Northeast 4 feet at 7 seconds and north 1 foot at 10 seconds. Scattered showers in the morning. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 4 feet. Scattered showers. .WEDNESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 3 to 4 feet. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. Scattered showers. .THURSDAY...East winds 5 to 10 knots. Seas around 3 feet. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. Scattered showers. $$ AMZ716-020915- Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM- 410 PM AST Sat Nov 1 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 5 seconds and northwest 2 feet at 9 seconds. Isolated showers. .SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 6 seconds and northwest 2 feet at 8 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds and northwest 2 feet at 9 seconds. Scattered showers after midnight. .MONDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 5 seconds and northwest 2 feet at 9 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 6 seconds and northeast 2 feet at 10 seconds. Scattered showers. .TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds and northeast 2 feet at 10 seconds. .TUESDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet. Scattered showers. .WEDNESDAY...East winds around 10 knots. Seas 2 to 3 feet. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers. .THURSDAY...East winds around 10 knots. Seas 2 to 3 feet. Scattered showers in the morning. .THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers. $$ AMZ723-020915- Anegada Passage east of Virgin Gorda and Saint Croix south to 17N- 410 PM AST Sat Nov 1 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas around 6 feet. Wave Detail: East 6 feet at 6 seconds and northeast 2 feet at 11 seconds. Isolated showers until early morning. .SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 6 feet. Wave Detail: East 6 feet at 7 seconds and northeast 2 feet at 11 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 5 feet. Wave Detail: East 5 feet at 7 seconds and northeast 2 feet at 11 seconds. Scattered showers. .MONDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 5 feet. Wave Detail: East 5 feet at 6 seconds and northeast 2 feet at 11 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds and northeast 1 foot at 10 seconds. Scattered showers. .TUESDAY...East winds 10 to 15 knots. Seas around 4 feet. Wave Detail: East 4 feet at 6 seconds and northeast 1 foot at 10 seconds. Scattered showers in the afternoon. .TUESDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet. .WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. .THURSDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers in the morning. .THURSDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet. Scattered showers. $$ AMZ726-020915- Coastal waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John- 410 PM AST Sat Nov 1 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds and west 1 foot at 8 seconds. Isolated showers. .SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 6 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers. .MONDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 6 seconds. .TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds. Scattered showers in the morning. .TUESDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. .WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. .THURSDAY...East winds around 10 knots. Seas 2 to 3 feet. Scattered showers in the morning. .THURSDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. $$ AMZ733-020915- Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix- 410 PM AST Sat Nov 1 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY AFTERNOON... .TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet. Wave Detail: East 6 feet at 7 seconds and west 1 foot at 7 seconds. Isolated thunderstorms early this evening. Scattered showers this evening, then isolated showers after midnight. .SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at 7 seconds and northeast 1 foot at 11 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 7 seconds and northeast 1 foot at 11 seconds. Scattered showers after midnight. .MONDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 7 seconds and northeast 1 foot at 10 seconds. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 6 seconds and northeast 1 foot at 10 seconds. .TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 6 seconds. .TUESDAY NIGHT...East winds around 10 knots. Seas around 3 feet. Scattered showers. .WEDNESDAY...East winds 10 to 15 knots. Seas around 3 feet. Scattered showers in the afternoon. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet. Scattered showers. .THURSDAY...East winds 10 to 15 knots. Seas around 3 feet. .THURSDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet. Winds and seas higher in and near thunderstorms. $$ AMZ735-020915- Coastal Waters of Southern Puerto Rico out 10 NM- 410 PM AST Sat Nov 1 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 6 seconds and west 1 foot at 6 seconds. Scattered showers with isolated thunderstorms early this evening, then isolated showers late this evening and overnight. .SUNDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 4 to 6 feet. Wave Detail: East 5 feet at 7 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 7 seconds. .MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 7 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 7 seconds. .TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. .WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers. .THURSDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$ AMZ741-020915- Mona Passage Southward to 17N- 410 PM AST Sat Nov 1 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY AFTERNOON... .TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet. Wave Detail: Southeast 6 feet at 6 seconds and north 2 feet at 11 seconds. Numerous showers with isolated thunderstorms early this evening, then scattered showers late this evening and early morning. Isolated showers late. .SUNDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 7 feet. Wave Detail: Southeast 6 feet at 7 seconds and north 2 feet at 11 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: Southeast 6 feet at 7 seconds and north 2 feet at 11 seconds. .MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 6 feet. Wave Detail: East 6 feet at 7 seconds and north 2 feet at 11 seconds. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 7 seconds and north 1 foot at 10 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 4 feet at 7 seconds and north 1 foot at 10 seconds. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet. Scattered showers. .WEDNESDAY...East winds 5 to 10 knots. Seas around 3 feet. .WEDNESDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas around 3 feet. .THURSDAY...East winds 5 to 10 knots. Seas around 3 feet. .THURSDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas around 3 feet. Winds and seas higher in and near thunderstorms. $$ AMZ742-020915- Coastal Waters of Northwestern Puerto Rico out 10 NM- 410 PM AST Sat Nov 1 2025 .TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots, becoming east 5 to 10 knots with gusts up to 20 knots late this evening and overnight. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds and north 3 feet at 11 seconds. Isolated showers this evening. .SUNDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds and north 3 feet at 11 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: East 3 feet at 7 seconds and northwest 2 feet at 9 seconds. .MONDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: East 3 feet at 7 seconds and north 2 feet at 10 seconds. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 4 feet. Wave Detail: North 3 feet at 7 seconds and north 2 feet at 10 seconds. .TUESDAY...East winds around 5 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and north 1 foot at 10 seconds. Scattered showers in the afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. .WEDNESDAY...East winds around 5 knots. Seas 2 to 3 feet. Scattered showers in the afternoon. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. .THURSDAY...Northeast winds around 5 knots. Seas 2 to 3 feet. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. $$ AMZ745-020915- Coastal Waters of Southwestern Puerto Rico out 10 NM- 410 PM AST Sat Nov 1 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots late. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 5 seconds and northwest 2 feet at 10 seconds. Scattered showers with isolated thunderstorms early this evening. .SUNDAY...Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: East 3 feet at 6 seconds and northwest 2 feet at 11 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 7 seconds and northwest 2 feet at 10 seconds. .MONDAY...East winds around 5 knots, increasing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 7 seconds and northwest 2 feet at 9 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 7 seconds and northwest 1 foot at 8 seconds. .TUESDAY...East winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 7 seconds and north 1 foot at 8 seconds. Scattered showers in the afternoon. .TUESDAY NIGHT...East winds around 5 knots. Seas around 2 feet. .WEDNESDAY...Southeast winds around 5 knots. Seas around 2 feet. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. .THURSDAY...Southeast winds around 5 knots. Seas around 2 feet. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$