


Coastal Waters Forecast
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
348 FZCA52 TJSJ 082041 CWFSJU Coastal Waters Forecast National Weather Service San Juan PR 441 PM AST Tue Jul 8 2025 Puerto Rico and the U.S. Virgin Islands Waters AMZ700-090915- 441 PM AST Tue Jul 8 2025 .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS... Moderate to locally fresh winds will create choppy seas across local waters over the next several days, promoting hazardous conditions for small craft. Hence, Small Craft Advisories are in effect for the Atlantic Offshore Waters from this evening and the Anegada Passage from Wednesday morning through Wednesday evening. Afternoon thunderstorms may impact coastal waters and local passages, particularly over western Puerto Rico and the Mona Passage each day. Showers and thunderstorm chances increase on through Thursday with the passage of tropical waves. Saharan dust is expected to return by Thursday. $$ AMZ711-090915- Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 441 PM AST Tue Jul 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM AST THIS EVENING THROUGH WEDNESDAY EVENING... .TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds. Scattered showers. .WEDNESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds. .WEDNESDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at 8 seconds. .THURSDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas around 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 8 seconds. Scattered showers. .THURSDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 8 seconds. Scattered showers in the evening. .FRIDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. .SATURDAY...East winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. .SUNDAY...East winds 10 to 15 knots. Seas around 4 feet, occasionally to 5 feet. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers. $$ AMZ712-090915- Coastal Waters of Northern Puerto Rico out 10 NM- 441 PM AST Tue Jul 8 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots late this evening and early morning, then increasing to 15 to 20 knots late. Gusts up to 30 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 7 seconds. Scattered showers this evening, then numerous showers after midnight. .WEDNESDAY...East winds 15 to 20 knots, increasing to 20 to 25 knots in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7 seconds. Scattered showers. .WEDNESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds. Scattered showers. .THURSDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds. Scattered showers in the evening. .FRIDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Gusts up to 30 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 7 seconds. .FRIDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Gusts up to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet. .SATURDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. .SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. $$ AMZ716-090915- Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM- 441 PM AST Tue Jul 8 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers. .WEDNESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 7 seconds. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers. .THURSDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 7 seconds. Scattered showers. .THURSDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 4 feet at 7 seconds. Scattered showers in the evening. .FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. .SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers. $$ AMZ723-090915- Anegada Passage east of Virgin Gorda and Saint Croix south to 17N- 441 PM AST Tue Jul 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING... .TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. Scattered showers. .WEDNESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at 7 seconds. Scattered showers. .WEDNESDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. Scattered showers. .THURSDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. .FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 5 feet, occasionally to 6 feet. .SATURDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet, occasionally to 5 feet. .SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet, occasionally to 4 feet. $$ AMZ726-090915- Coastal waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John- 441 PM AST Tue Jul 8 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots. Gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers until early morning, then numerous showers late. .WEDNESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. Scattered showers. .WEDNESDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers. .THURSDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers in the evening. .FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 6 seconds. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. .SATURDAY...East winds around 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers. $$ AMZ733-090915- Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix- 441 PM AST Tue Jul 8 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas around 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers this evening, then isolated showers after midnight. Scattered showers late. .WEDNESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas around 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers. .WEDNESDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. Scattered showers. .THURSDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. .THURSDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers in the evening. .FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 4 feet at 7 seconds. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet, occasionally to 8 feet. .SATURDAY...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. .SATURDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. .SUNDAY...East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. $$ AMZ735-090915- Coastal Waters of Southern Puerto Rico out 10 NM- 441 PM AST Tue Jul 8 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight, then increasing to 15 to 20 knots late. Gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 6 seconds. Isolated showers late this evening and overnight. .WEDNESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 7 seconds. .WEDNESDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 7 seconds. Scattered showers after midnight. .THURSDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 7 seconds. .THURSDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 7 seconds. Scattered showers in the evening. .FRIDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 6 seconds. .FRIDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. .SATURDAY...East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. .SATURDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. .SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SUNDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. $$ AMZ741-090915- Mona Passage Southward to 17N- 441 PM AST Tue Jul 8 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. Numerous showers with isolated thunderstorms early this evening. Isolated showers after midnight, then scattered showers late. .WEDNESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. .WEDNESDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. .THURSDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers in the evening. .FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet. .SATURDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. .SUNDAY...East winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers. Winds and seas higher in and near thunderstorms. $$ AMZ742-090915- Coastal Waters of Northwestern Puerto Rico out 10 NM- 441 PM AST Tue Jul 8 2025 .TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight, then increasing to 10 to 15 knots late. Gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 7 seconds and south 2 feet at 6 seconds. Isolated showers early this evening. .WEDNESDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 7 seconds and south 1 foot at 7 seconds. Numerous showers in the afternoon. .WEDNESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: South 1 foot at 7 seconds. .THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds and south 1 foot at 7 seconds. Numerous showers in the afternoon. .THURSDAY NIGHT...East winds 5 to 10 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 7 seconds and south 1 foot at 6 seconds. .FRIDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 7 seconds and south 1 foot at 7 seconds. Scattered showers in the afternoon. .FRIDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Gusts up to 30 knots. Seas 2 to 4 feet, occasionally to 5 feet. .SATURDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers in the afternoon. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. .SUNDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet. $$ AMZ745-090915- Coastal Waters of Southwestern Puerto Rico out 10 NM- 441 PM AST Tue Jul 8 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots, diminishing to 5 to 10 knots with gusts up to 20 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds. Isolated showers early this evening. .WEDNESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Gusts up to 30 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at 3 seconds and south 2 feet at 6 seconds. Scattered showers in the afternoon. .WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 7 seconds and northeast 1 foot at 2 seconds. .THURSDAY...East winds 10 to 15 knots, becoming southeast 15 to 20 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 7 seconds and east 1 foot at 2 seconds. .THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 7 seconds and east 1 foot at 2 seconds. .FRIDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 6 seconds and east 2 feet at 3 seconds. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. .SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers in the afternoon. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. .SUNDAY...Southeast winds around 5 knots. Seas 2 to 3 feet, occasionally to 4 feet. Numerous showers in the afternoon. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Scattered showers. $$