Coastal Waters Forecast
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
589 FZCA52 TJSJ 211947 CWFSJU Coastal Waters Forecast National Weather Service San Juan PR 347 PM AST Fri Nov 21 2025 Puerto Rico and the U.S. Virgin Islands Waters AMZ700-220845- 347 PM AST Fri Nov 21 2025 .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS... A surface high pressure will build over the western Atlantic during the next few days, promoting moderate to fresh trade winds from late tonight into the weekend. A surface low over the eastern Atlantic will generate pulses of long period northeasterly swell, arriving around Tuesday or Wednesday of next week. Afternoon thunderstorms will form across southwestern Puerto Rico today. $$ AMZ711-220845- Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 347 PM AST Fri Nov 21 2025 .TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet. Wave Detail: East 3 feet at 5 seconds and north 2 feet at 9 seconds. Isolated showers. .SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds and north 2 feet at 8 seconds. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast 1 foot at 11 seconds. Scattered showers. .SUNDAY...East winds around 10 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast 1 foot at 11 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast 1 foot at 11 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas around 3 feet. Wave Detail: East 3 feet at 5 seconds and north 1 foot at 8 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. .TUESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. .TUESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet. .WEDNESDAY...East winds 15 to 20 knots. Seas around 6 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas around 6 feet. $$ AMZ712-220845- Coastal Waters of Northern Puerto Rico out 10 NM- 347 PM AST Fri Nov 21 2025 .TONIGHT...Northeast 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 north 2 feet at 9 seconds. Isolated showers. .SATURDAY...East winds around 10 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 5 seconds and north 2 feet at 8 seconds. .SATURDAY NIGHT...East winds 5 to 10 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Northeast 2 feet at 5 seconds and north 2 feet at 8 seconds. Scattered showers after midnight. .SUNDAY...East winds 5 to 10 knots. Seas around 3 feet. Wave Detail: Northeast 2 feet at 6 seconds and northeast 1 foot at 11 seconds. Scattered showers. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 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 25 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 5 seconds and north 1 foot at 8 seconds. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Scattered showers. .TUESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 3 to 4 feet. .TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 4 to 5 feet. Scattered showers. .WEDNESDAY...East winds 15 to 20 knots. Seas around 5 feet. Scattered showers. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet. Scattered showers. $$ AMZ716-220845- Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM- 347 PM AST Fri Nov 21 2025 .TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds and north 2 feet at 9 seconds. Isolated showers. .SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 4 seconds and north 2 feet at 9 seconds. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet. Wave Detail: Northeast 2 feet at 4 seconds and north 2 feet at 8 seconds. Scattered showers after midnight. .SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds and north 2 feet at 7 seconds. Scattered showers in the morning. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds and north 2 feet at 7 seconds. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast 1 foot at 11 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. .TUESDAY...Northeast winds 15 to 20 knots. Seas 3 to 4 feet. Scattered showers in the morning. .TUESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to 5 feet. Scattered showers. .WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Scattered showers. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet. Scattered showers. $$ AMZ723-220845- Anegada Passage east of Virgin Gorda and Saint Croix south to 17N- 347 PM AST Fri Nov 21 2025 .TONIGHT...Northeast 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 12 seconds. Isolated showers. .SATURDAY...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. .SATURDAY NIGHT...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. Scattered showers in the morning. .MONDAY NIGHT...East winds around 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Scattered showers. .TUESDAY...East winds around 15 knots. Seas around 4 feet. Scattered showers in the morning. .TUESDAY NIGHT...Northeast winds 15 to 20 knots. Seas around 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. $$ AMZ726-220845- Coastal waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John- 347 PM AST Fri Nov 21 2025 .TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 5 seconds. Isolated showers. .SATURDAY...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers after midnight. .SUNDAY...East winds around 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers in the morning. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers after midnight. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. Scattered showers in the morning. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. .TUESDAY...Northeast winds 15 to 20 knots. Seas 3 to 4 feet. .TUESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to 4 feet. .WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. $$ AMZ733-220845- Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix- 347 PM AST Fri Nov 21 2025 .TONIGHT...Northeast winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds and northeast 1 foot at 11 seconds. Isolated showers until early morning. .SATURDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas around 3 feet. Wave Detail: East 3 feet at 5 seconds. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 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 25 knots. Seas around 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. .TUESDAY...East winds 15 to 20 knots. Seas 3 to 5 feet. .TUESDAY NIGHT...Northeast 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 around 20 knots. Seas 5 to 6 feet. $$ AMZ735-220845- Coastal Waters of Southern Puerto Rico out 10 NM- 347 PM AST Fri Nov 21 2025 .TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. .SATURDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers in the afternoon. .SATURDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. .SUNDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers in the morning. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. .MONDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 25 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. Scattered showers in the morning. .MONDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 3 feet. .TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers in the morning. .TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers. .WEDNESDAY...Northeast winds 10 to 15 knots, becoming east 15 to 20 knots in the afternoon. Seas 3 to 5 feet. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet. $$ AMZ741-220845- Mona Passage Southward to 17N- 347 PM AST Fri Nov 21 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...Northeast winds 10 to 15 knots, becoming east 15 to 20 knots after midnight. Seas 3 to 4 feet. Wave Detail: East 4 feet at 5 seconds and north 2 feet at 10 seconds. Isolated showers until early morning. .SATURDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 5 seconds and north 2 feet at 10 seconds. .SATURDAY NIGHT...Northeast 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. .SUNDAY...East winds 10 to 15 knots, becoming northeast 5 to 10 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds and northeast 1 foot at 11 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 3 feet at 6 seconds. Scattered showers in the evening. .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. .MONDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 3 to 4 feet. .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. Scattered showers. $$ AMZ742-220845- Coastal Waters of Northwestern Puerto Rico out 10 NM- 347 PM AST Fri Nov 21 2025 .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds and north 2 feet at 9 seconds. Isolated showers. .SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: Northeast 2 feet at 4 seconds and north 2 feet at 9 seconds. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 6 seconds and northeast 1 foot at 11 seconds. .SUNDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds and north 2 feet at 7 seconds. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 6 seconds and northeast 1 foot at 11 seconds. Scattered showers in the evening. .MONDAY...East winds 5 to 10 knots, becoming northeast 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 5 seconds. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 3 feet. Scattered showers. .TUESDAY...East winds 10 to 15 knots, becoming northeast 15 to 20 knots in the afternoon. Seas 2 to 4 feet. .TUESDAY NIGHT...Northeast winds 15 to 20 knots, becoming east 10 to 15 knots after midnight. Seas 2 to 4 feet. .WEDNESDAY...East winds 10 to 15 knots, becoming northeast 15 to 20 knots in the afternoon. Seas 3 to 5 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet. Scattered showers. $$ AMZ745-220845- Coastal Waters of Southwestern Puerto Rico out 10 NM- 347 PM AST Fri Nov 21 2025 .TONIGHT...East winds 5 to 10 knots, becoming northeast 10 to 15 knots with gusts up to 20 knots late this evening and overnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and north 2 feet at 8 seconds. .SATURDAY...East winds 5 to 10 knots, becoming southeast in the afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds and north 2 feet at 9 seconds. Scattered showers in the afternoon. .SATURDAY 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: North 2 feet at 7 seconds. .SUNDAY...East winds 5 to 10 knots, becoming southeast in the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at 6 seconds and north 1 foot at 6 seconds. .SUNDAY NIGHT...East winds around 5 knots. Seas around 2 feet. Wave Detail: North 1 foot at 7 seconds. Scattered showers in the evening. .MONDAY...East winds around 5 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 5 seconds and north 1 foot at 6 seconds. .MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. .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. $$