Coastal Waters Forecast
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
409 FZCA52 TJSJ 062026 CWFSJU Coastal Waters Forecast National Weather Service San Juan PR 426 PM AST Sat Dec 6 2025 Puerto Rico and the U.S. Virgin Islands Waters AMZ700-070915- 426 PM AST Sat Dec 6 2025 .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS... An east to northeast 4 to 5 ft swell at around 10 seconds and moderate trades will promote choppy seas across most offshore waters and local passages through tonight A building surface high pressure north of the area will maintain moderate to locally fresh trades (easterlies) on Sunday before subsiding early next week. $$ AMZ711-070915- Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 426 PM AST Sat Dec 6 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 9 seconds and north 2 feet at 9 seconds. Scattered showers. .SUNDAY...East winds around 15 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 9 seconds and north 2 feet at 12 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 9 seconds and north 3 feet at 12 seconds. Scattered showers after midnight. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 9 seconds and north 3 feet at 12 seconds. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 4 to 5 feet. Wave Detail: East 4 feet at 9 seconds and north 2 feet at 9 seconds. .TUESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas around 4 feet. Wave Detail: East 4 feet at 9 seconds and northeast 2 feet at 13 seconds. .TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet. .WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet. .THURSDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Scattered showers in the morning. .THURSDAY NIGHT...East winds 15 to 20 knots. Seas 7 to 8 feet. $$ AMZ712-070915- Coastal Waters of Northern Puerto Rico out 10 NM- 426 PM AST Sat Dec 6 2025 .TONIGHT...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 north 1 foot at 9 seconds. Isolated showers early this evening, then scattered showers late this evening and early morning. Isolated showers late. .SUNDAY...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 9 seconds and north 2 feet at 12 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 9 seconds and north 3 feet at 12 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 9 seconds and north 3 feet at 12 seconds. .MONDAY NIGHT...East winds 5 to 10 knots. Seas around 4 feet. Wave Detail: East 4 feet at 9 seconds and north 2 feet at 12 seconds. .TUESDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 9 seconds and north 1 foot at 9 seconds. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. .WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. .THURSDAY...East winds 10 to 15 knots. Seas 5 to 7 feet. .THURSDAY NIGHT...East winds 10 to 15 knots. Seas 6 to 7 feet. $$ AMZ716-070915- Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM- 426 PM AST Sat Dec 6 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds and east 3 feet at 9 seconds. Scattered showers. .SUNDAY...East winds around 15 knots with gusts up to 20 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds and north 2 feet at 9 seconds. Scattered showers. .SUNDAY NIGHT...East winds around 15 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds and north 1 foot at 8 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds and north 3 feet at 12 seconds. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 9 seconds and north 3 feet at 11 seconds. .TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 9 seconds and southeast 2 feet at 4 seconds. .TUESDAY NIGHT...East winds around 10 knots. Seas around 3 feet. .WEDNESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 3 to 4 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet. Scattered showers. .THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Scattered showers in the morning. .THURSDAY NIGHT...East winds 15 to 20 knots, increasing to 20 to 25 knots after midnight. Seas 5 to 6 feet, building to 6 to 8 feet after midnight. $$ AMZ723-070915- Anegada Passage east of Virgin Gorda and Saint Croix south to 17N- 426 PM AST Sat Dec 6 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...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 east 5 feet at 9 seconds. Scattered showers until early morning, then isolated showers late. .SUNDAY...East winds around 15 knots with gusts up to 25 knots. Seas around 5 feet. Wave Detail: East 5 feet at 6 seconds and east 4 feet at 9 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 5 feet. Wave Detail: Southeast 5 feet at 6 seconds and east 4 feet at 9 seconds. .MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas around 5 feet. Wave Detail: Southeast 5 feet at 6 seconds and northeast 3 feet at 9 seconds. .MONDAY NIGHT...East winds around 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds and east 3 feet at 9 seconds. .TUESDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds and east 2 feet at 9 seconds. .TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet. .WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet. .THURSDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. .THURSDAY NIGHT...East winds 15 to 20 knots, increasing to 20 to 25 knots after midnight. Seas 6 to 8 feet. $$ AMZ726-070915- Coastal waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John- 426 PM AST Sat Dec 6 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 9 seconds and east 3 feet at 6 seconds. Scattered showers. .SUNDAY...East winds around 15 knots with gusts up to 20 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 9 seconds and southeast 3 feet at 6 seconds. Scattered showers. .SUNDAY NIGHT...East winds around 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 9 seconds and southeast 3 feet at 6 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds and east 3 feet at 9 seconds. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds. .TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds. .TUESDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet. .WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet. Scattered showers. .THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Scattered showers in the morning. .THURSDAY NIGHT...East winds 15 to 20 knots, increasing to 20 to 25 knots after midnight. Seas 4 to 5 feet, building to 5 to 7 feet after midnight. $$ AMZ733-070915- Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix- 426 PM AST Sat Dec 6 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 8 seconds. Scattered 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 7 seconds and east 3 feet at 9 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 3 feet at 9 seconds. Scattered showers in the evening. .MONDAY...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 east 3 feet at 9 seconds. .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 and east 2 feet at 9 seconds. .TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet. Wave Detail: East 4 feet at 6 seconds and east 2 feet at 9 seconds. .TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. .WEDNESDAY...East winds 15 to 20 knots. Seas around 4 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. .THURSDAY...East winds 15 to 20 knots. Seas around 5 feet. .THURSDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet. $$ AMZ735-070915- Coastal Waters of Southern Puerto Rico out 10 NM- 426 PM AST Sat Dec 6 2025 .TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 7 seconds. Scattered showers late this evening and overnight. .SUNDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 7 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 7 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds. .MONDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds. .TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 7 seconds. .TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. .WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. .THURSDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet. .THURSDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 3 to 5 feet. $$ AMZ741-070915- Mona Passage Southward to 17N- 426 PM AST Sat Dec 6 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 10 to 15 knots, increasing to 15 to 20 knots late this evening and overnight. Seas 4 to 6 feet. Wave Detail: East 5 feet at 7 seconds and east 2 feet at 9 seconds. Isolated showers this evening, then scattered showers after midnight. .SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 8 seconds and north 1 foot at 9 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: Southeast 5 feet at 7 seconds and north 2 feet at 11 seconds. Scattered showers after midnight. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds and north 2 feet at 11 seconds. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds and northeast 2 feet at 10 seconds. .TUESDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 7 seconds and northeast 2 feet at 9 seconds. .TUESDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 3 to 4 feet. .WEDNESDAY...East winds 10 to 15 knots, increasing to 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. .THURSDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. .THURSDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 7 feet. $$ AMZ742-070915- Coastal Waters of Northwestern Puerto Rico out 10 NM- 426 PM AST Sat Dec 6 2025 .TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots, diminishing to 5 to 10 knots late. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 6 seconds and north 1 foot at 10 seconds. .SUNDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 6 seconds and north 1 foot at 9 seconds. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 7 seconds and north 2 feet at 12 seconds. .MONDAY...East winds around 5 knots. Seas 2 to 4 feet. Wave Detail: East 2 feet at 6 seconds and north 2 feet at 11 seconds. .MONDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and northeast 2 feet at 9 seconds. .TUESDAY...East winds around 5 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 12 seconds and southeast 1 foot at 7 seconds. Scattered showers in the afternoon. .TUESDAY NIGHT...East winds around 5 knots, increasing to 5 to 10 knots after midnight. Seas 2 to 3 feet. .WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers in the afternoon. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. .THURSDAY...East winds 5 to 10 knots. Seas 3 to 5 feet. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 4 to 6 feet. $$ AMZ745-070915- Coastal Waters of Southwestern Puerto Rico out 10 NM- 426 PM AST Sat Dec 6 2025 .TONIGHT...East winds around 5 knots, increasing to 5 to 10 knots late. Seas 2 to 3 feet. Wave Detail: South 2 feet at 7 seconds and north 1 foot at 9 seconds. Isolated showers after midnight. .SUNDAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and north 1 foot at 9 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and northwest 1 foot at 8 seconds. .MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and northwest 1 foot at 9 seconds. .MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to around 5 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and northwest 2 feet at 11 seconds. .TUESDAY...East winds around 5 knots, becoming southeast 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 7 seconds and northwest 1 foot at 10 seconds. .TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. .WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered showers in the afternoon. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. .THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet. .THURSDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 5 feet. $$