Coastal Waters Forecast
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
578 FZCA52 TJSJ 220710 CWFSJU Coastal Waters Forecast National Weather Service San Juan PR 310 AM AST Sat Nov 22 2025 Puerto Rico and the U.S. Virgin Islands Waters AMZ700-222015- 310 AM AST Sat Nov 22 2025 .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS... High pressure over the western Atlantic and a surface trough across the central Atlantic will maintain moderate trade winds through the weekend. By Sunday and Monday, a surface low and its cold front will interact with the high pressure, weakening the local pressure gradient and producing gentle to moderate easterly winds. Another high pressure will then build over the western Atlantic and move into the central Atlantic from Monday through Thursday. This will tighten the pressure gradient again, supporting moderate to fresh trade winds and choppy seas from Tuesday into mid-week. Thus, expect confused seas due to locally choppy conditions combined with a long-period northeasterly swell arriving between Tuesday and Wednesday. $$ AMZ711-222015- Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 310 AM AST Sat Nov 22 2025 .TODAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds and north 2 feet at 8 seconds. Isolated showers early this morning. .TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast 1 foot at 11 seconds. .SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast 1 foot at 11 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast 1 foot at 11 seconds. .MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas around 3 feet. Wave Detail: East 3 feet at 5 seconds and north 1 foot at 8 seconds. .MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at 6 seconds and northeast 1 foot at 11 seconds. Scattered showers in the evening. .TUESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. .TUESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet. .WEDNESDAY...East winds 15 to 20 knots. Seas around 6 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas around 6 feet. $$ AMZ712-222015- Coastal Waters of Northern Puerto Rico out 10 NM- 310 AM AST Sat Nov 22 2025 .TODAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 5 seconds and north 2 feet at 8 seconds. Isolated showers this morning. .TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas around 3 feet. Wave Detail: Northeast 2 feet at 5 seconds and north 2 feet at 8 seconds. .SUNDAY...East winds 5 to 10 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Northeast 2 feet at 6 seconds and northeast 1 foot at 11 seconds. .SUNDAY NIGHT...East winds around 10 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds and northeast 1 foot at 11 seconds. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 5 seconds and north 1 foot at 8 seconds. Scattered showers. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast 1 foot at 11 seconds. Scattered showers after midnight. .TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers in the morning. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Scattered showers. .WEDNESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas around 5 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 5 to 6 feet. Scattered showers. $$ AMZ716-222015- Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM- 310 AM AST Sat Nov 22 2025 .TODAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 4 seconds and north 2 feet at 9 seconds. Scattered showers early this morning, then isolated showers late this morning and afternoon. .TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 2 feet at 4 seconds and north 2 feet at 8 seconds. .SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds and north 2 feet at 7 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds and north 2 feet at 7 seconds. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast 1 foot at 11 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds around 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds and north 1 foot at 8 seconds. Scattered showers after midnight. .TUESDAY...East winds 15 to 20 knots. Seas 3 to 4 feet. .TUESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet. Scattered showers. .WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet. Scattered showers. $$ AMZ723-222015- Anegada Passage east of Virgin Gorda and Saint Croix south to 17N- 310 AM AST Sat Nov 22 2025 .TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 5 seconds and northeast 1 foot at 11 seconds. Isolated showers this morning. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 5 seconds and northeast 1 foot at 11 seconds. .SUNDAY...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 11 seconds. .SUNDAY 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 11 seconds. Scattered showers after midnight. .MONDAY...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 11 seconds. .MONDAY NIGHT...East winds around 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at 5 seconds and northeast 1 foot at 13 seconds. Scattered showers in the evening. .TUESDAY...East winds 15 to 20 knots. Seas around 4 feet. .TUESDAY NIGHT...East winds 15 to 20 knots. Seas around 5 feet. .WEDNESDAY...East winds 15 to 20 knots. Seas around 5 feet. .WEDNESDAY NIGHT...East winds around 20 knots. Seas 5 to 6 feet. $$ AMZ726-222015- Coastal waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John- 310 AM AST Sat Nov 22 2025 .TODAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Isolated showers. .TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. .SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds around 15 knots with gusts up to 25 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. Scattered showers after midnight. .TUESDAY...East winds 15 to 20 knots. Seas 3 to 4 feet. .TUESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to 4 feet. .WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. $$ AMZ733-222015- Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix- 310 AM AST Sat Nov 22 2025 .TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 5 seconds. Isolated showers late. .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. .SUNDAY...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. .SUNDAY NIGHT...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. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 5 seconds. .MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 5 seconds. Scattered showers after midnight. .TUESDAY...East winds 15 to 20 knots. Seas 3 to 5 feet. .TUESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. .WEDNESDAY...East winds 15 to 20 knots. Seas around 5 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet. $$ AMZ735-222015- Coastal Waters of Southern Puerto Rico out 10 NM- 310 AM AST Sat Nov 22 2025 .TODAY...Northeast winds 5 to 10 knots with gusts up to 20 knots, becoming east 10 to 15 knots with gusts up to 20 knots this afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Isolated showers. .TONIGHT...Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. .SUNDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots, becoming northeast 5 to 10 knots after midnight. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. Scattered showers in the morning. .MONDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. .TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers in the morning. .TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers. .WEDNESDAY...Northeast winds 10 to 15 knots, becoming east 15 to 20 knots in the afternoon. Seas 3 to 5 feet. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet. $$ AMZ741-222015- Mona Passage Southward to 17N- 310 AM AST Sat Nov 22 2025 .TODAY...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 5 seconds and north 2 feet at 10 seconds. .TONIGHT...Northeast winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds and northeast 1 foot at 11 seconds. .SUNDAY...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. .SUNDAY 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. .MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at 7 seconds. Scattered showers in the evening. .TUESDAY...East winds 15 to 20 knots. Seas 3 to 5 feet. .TUESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet. .WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet. $$ AMZ742-222015- Coastal Waters of Northwestern Puerto Rico out 10 NM- 310 AM AST Sat Nov 22 2025 .TODAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: Northeast 2 feet at 4 seconds and north 2 feet at 9 seconds. Isolated showers this afternoon. .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 6 seconds and northeast 1 foot at 11 seconds. .SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots, becoming northeast 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds and north 2 feet at 7 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 6 seconds and northeast 1 foot at 11 seconds. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 6 seconds. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail: North 3 feet at 6 seconds. .TUESDAY...East winds 10 to 15 knots, becoming northeast 15 to 20 knots in the afternoon. Seas 2 to 4 feet. .TUESDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet. .WEDNESDAY...East winds 10 to 15 knots, becoming northeast 15 to 20 knots in the afternoon. Seas 3 to 5 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 3 to 5 feet. $$ AMZ745-222015- Coastal Waters of Southwestern Puerto Rico out 10 NM- 310 AM AST Sat Nov 22 2025 .TODAY...Northeast winds 5 to 10 knots, becoming southeast late. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds and north 2 feet at 9 seconds. Isolated showers early this afternoon. Scattered showers late. .TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds and north 2 feet at 8 seconds. .SUNDAY...East winds 5 to 10 knots, becoming southeast in the afternoon. Seas around 2 feet. Wave Detail: East 1 foot at 6 seconds and north 1 foot at 6 seconds. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 5 seconds and north 1 foot at 7 seconds. .MONDAY...East winds 5 to 10 knots, becoming southeast in the afternoon. Seas around 2 feet. Wave Detail: Southeast 1 foot at 5 seconds and north 1 foot at 6 seconds. Scattered showers in the afternoon. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 6 seconds. Scattered showers in the evening. .TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered showers in the afternoon. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. .WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers in the afternoon. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. $$