FZCA52 TJSJ 230815 CWFSJU Coastal Waters Forecast National Weather Service San Juan PR 415 AM AST Fri Jan 23 2026 Puerto Rico and the U.S. Virgin Islands Waters AMZ700-232030- 415 AM AST Fri Jan 23 2026 .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS... A broad surface high pressure over the central Atlantic will promote moderate to fresh easterlies today, deteriorating marine conditions. Small Craft Advisories will remain in effect for the offshore Atlantic through at least early Sunday. A surface trough will increase the frequency of showers through Saturday. Easterlies are forecast to increase by Sunday as another surface high builds over the Atlantic. A long period northeasterly swell is forecast to spread across the local Atlantic Waters and Caribbean Passages by around late Monday night into Tuesday. $$ AMZ711-232030- Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 415 AM AST Fri Jan 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .TODAY...East winds around 15 knots with gusts up to 25 knots. Seas 7 to 8 feet. Wave Detail: East 8 feet at 10 seconds and north 1 foot at 8 seconds. Scattered showers, mainly this morning. .TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 6 to 7 feet. Wave Detail: East 7 feet at 10 seconds and north 2 feet at 9 seconds. Scattered showers. .SATURDAY...East winds around 15 knots with gusts up to 25 knots. Seas 6 to 7 feet. Wave Detail: East 6 feet at 10 seconds and north 2 feet at 9 seconds. Scattered showers. .SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 6 to 7 feet. Wave Detail: East 7 feet at 10 seconds and north 1 foot at 8 seconds. Scattered showers. .SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 6 to 7 feet. Wave Detail: East 7 feet at 10 seconds and north 1 foot at 6 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 6 feet. Wave Detail: East 6 feet at 10 seconds. .MONDAY...East winds 10 to 15 knots. Seas 5 to 6 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 6 feet. .TUESDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 5 to 6 feet. .TUESDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 4 to 5 feet. $$ AMZ712-232030- Coastal Waters of Northern Puerto Rico out 10 NM- 415 AM AST Fri Jan 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...East winds 10 to 15 knots, increasing to 15 to 20 knots this afternoon. Seas 6 to 7 feet. Wave Detail: Northeast 6 feet at 10 seconds and north 1 foot at 8 seconds. Isolated showers. .TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: Northeast 6 feet at 10 seconds and north 1 foot at 7 seconds. Scattered showers. .SATURDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: Northeast 5 feet at 10 seconds and north 1 foot at 9 seconds. Scattered showers in the morning. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: Northeast 5 feet at 10 seconds and north 1 foot at 6 seconds. .SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: Northeast 5 feet at 10 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 5 to 6 feet. Wave Detail: Northeast 5 feet at 10 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. .MONDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 4 to 5 feet. .TUESDAY...East winds 5 to 10 knots. Seas 4 to 5 feet. .TUESDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 4 to 5 feet. $$ AMZ716-232030- Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM- 415 AM AST Fri Jan 23 2026 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TODAY...East winds around 15 knots with gusts up to 25 knots. Seas 4 to 6 feet. Wave Detail: Northeast 5 feet at 10 seconds and east 3 feet at 5 seconds. Scattered showers. .TONIGHT...East winds around 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds and east 3 feet at 5 seconds. Scattered showers. .SATURDAY...East winds around 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds and east 2 feet at 5 seconds. Scattered showers. .SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 5 seconds and northeast 4 feet at 10 seconds. Scattered showers. .SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds and northeast 4 feet at 10 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds and northeast 4 feet at 10 seconds. .MONDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. .TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. $$ AMZ723-232030- Anegada Passage east of Virgin Gorda and Saint Croix south to 17N- 415 AM AST Fri Jan 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at 10 seconds. Scattered showers. .TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 6 feet at 10 seconds. Scattered showers. .SATURDAY...East winds around 15 knots with gusts up to 20 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 10 seconds and east 4 feet at 6 seconds. Scattered showers in the morning. .SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet. Wave Detail: East 6 feet at 10 seconds and east 5 feet at 6 seconds. .SUNDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet. Wave Detail: East 6 feet at 6 seconds and east 6 feet at 10 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 6 seconds and east 5 feet at 10 seconds. .MONDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. .MONDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet. .TUESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet. $$ AMZ726-232030- Coastal waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John- 415 AM AST Fri Jan 23 2026 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TODAY...East winds around 15 knots with gusts up to 25 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 10 seconds and east 2 feet at 5 seconds. Numerous showers early this morning, then scattered showers late this morning and afternoon. .TONIGHT...East winds around 15 knots with gusts up to 25 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 10 seconds and east 2 feet at 6 seconds. Scattered showers. .SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 10 seconds and east 2 feet at 5 seconds. Scattered showers. .SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet. Wave Detail: East 4 feet at 5 seconds and east 4 feet at10 seconds. Scattered showers. .SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 10 seconds and east 4 feet at 5 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 10 seconds and east 3 feet at 6 seconds. .MONDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. .TUESDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 3 to 4 feet. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. $$ AMZ733-232030- Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix- 415 AM AST Fri Jan 23 2026 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TODAY...East winds around 15 knots with gusts up to 25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 10 seconds and east 4 feet at 7 seconds. Numerous showers, mainly this morning. .TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 5 feet. Wave Detail: East 5 feet at 10 seconds and east 3 feet at 5 seconds. Scattered showers. .SATURDAY...East winds around 15 knots with gusts up to 25 knots. Seas around 5 feet. Wave Detail: East 5 feet at 10 seconds and east 3 feet at 6 seconds. Scattered showers. .SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 5 feet. Wave Detail: East 4 feet at 6 seconds and east 4 feet at 10 seconds. Scattered showers. .SUNDAY...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 east 4 feet at 10 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 7 seconds and east 4 feet at 10 seconds. Scattered showers. .MONDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 5 to 6 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. .TUESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet. $$ AMZ735-232030- Coastal Waters of Southern Puerto Rico out 10 NM- 415 AM AST Fri Jan 23 2026 .TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 8 seconds. Scattered showers early this morning, then numerous showers late this morning. Scattered showers this afternoon. .TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 7 seconds. Scattered showers. .SATURDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: East 3 feet at 6 seconds. Scattered showers in the morning. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds and east 1 foot at 10 seconds. .SUNDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 6 seconds and east 1 foot at 10 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 6 seconds. Scattered showers. .MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. .TUESDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet. $$ AMZ741-232030- Mona Passage Southward to 17N- 415 AM AST Fri Jan 23 2026 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 8 seconds and north 1 foot at 8 seconds. Scattered showers. .TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 10 seconds and east 4 feet at 7 seconds. Scattered showers. .SATURDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: East 5 feet at 10 seconds and east 4 feet at 7 seconds. Scattered showers. .SATURDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 3 to 5 feet. Wave Detail: East 4 feet at 7 seconds and east 4 feet at 10 seconds. Scattered showers. .SUNDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas 4 to 6 feet. Wave Detail: East 6 feet at 6 seconds and northeast 3 feet at 10 seconds. .SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas 4 to 6 feet. Wave Detail: East 6 feet at 7 seconds and east 2 feet at 10 seconds. .MONDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 4 to 6 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. .TUESDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 4 to 5 feet. .TUESDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas around 4 feet. $$ AMZ742-232030- Coastal Waters of Northwestern Puerto Rico out 10 NM- 415 AM AST Fri Jan 23 2026 .TODAY...East winds 5 to 10 knots with gusts up to 20 knots. Seas 3 to 5 feet. Wave Detail: East 2 feet at 7 seconds and north 1 foot at 8 seconds. Showers this afternoon. .TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: Southeast 2 feet at 7 seconds and north 1 foot at 8 seconds. .SATURDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: Northeast 2 feet at 7 seconds. Numerous showers in the afternoon. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 8 seconds. .SUNDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 7 seconds and northeast 2 feet at 10 seconds. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast 1 foot at 10 seconds. .MONDAY...East winds 5 to 10 knots. Seas 2 to 4 feet. .MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. .TUESDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet. $$ AMZ745-232030- Coastal Waters of Southwestern Puerto Rico out 10 NM- 415 AM AST Fri Jan 23 2026 .TODAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 7 seconds and northwest 1 foot at 7 seconds. Isolated showers this morning, then scattered showers early this afternoon. Showers late. .TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 7 seconds and north 1 foot at 7 seconds. Numerous showers in the evening. .SATURDAY...East winds around 5 knots, becoming southeast in the afternoon. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds and north 1 foot at 7 seconds. Numerous showers in the afternoon. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds and north 1 foot at 7 seconds. .SUNDAY...East winds 5 to 10 knots, increasing to 15 to 20 knots with gusts up to 25 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and north 1 foot at 7 seconds. .SUNDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Gusts up to 25 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and north 1 footat 7 seconds. .MONDAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. .MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. .TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. $$