NWS Marine Forecast


   AMZ700-062030-  316 AM AST Mon Apr 6 2026    .Synopsis for Puerto Rico and the U.S. Virgin Islands Waters...  Hazardous marine conditions will persist through at least tonight as  a strong high-pressure system over the Atlantic maintains moderate  to fresh southeasterly winds. Therefore, expect confused seas  particularly across Atlantic waters and local passages throughout the  day. Conditions are expected to improve starting early Tuesday  morning, with seas subsiding to around 5 feet in the Atlantic and up  to 4 feet in the Caribbean. While trade wind showers continue to  drift across the region, isolated to scattered thunderstorms are  likely this afternoon, especially over coastal waters near western,  northern, and northwestern Puerto Rico. Expect shower and  thunderstorm coverage to increase slightly later this week as a  series of troughs interacts with deep tropical moisture.    $$
   AMZ726-062030-  Coastal waters east of Puerto Rico, around Vieques, and around and  just north of Culebra and Saint John-  316 AM AST Mon Apr 6 2026    SMALL CRAFT SHOULD EXERCISE CAUTION    TODAY  Southeast winds 15 to 20 knots with gusts up to 25 knots.  Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast  5 feet at 7 seconds. Scattered showers until late afternoon, then  numerous showers with isolated thunderstorms late.  TONIGHT  Southeast winds 15 to 20 knots with gusts up to 25 knots.  Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast  5 feet at 7 seconds. Scattered showers.  TUESDAY  Southeast winds 15 to 20 knots with gusts up to 25 knots.  Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast  5 feet at 7 seconds. Scattered showers.  TUESDAY NIGHT  East winds around 15 knots with gusts up to  25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:  East 5 feet at 7 seconds. Scattered showers after midnight.  WEDNESDAY  East winds 10 to 15 knots with gusts up to 25 knots.  Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet  at 7 seconds. Scattered showers.  WEDNESDAY NIGHT  East winds 10 to 15 knots with gusts up to  25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:  East 4 feet at 7 seconds.  THURSDAY  East winds 10 to 15 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Scattered showers.  THURSDAY NIGHT  East winds around 15 knots. Seas 3 to 4 feet,  occasionally to 5 feet.  FRIDAY  East winds around 15 knots. Seas 3 to 4 feet, occasionally  to 5 feet. Scattered showers.  FRIDAY NIGHT  East winds around 15 knots. Seas 3 to 5 feet,  occasionally to 6 feet. Scattered showers.    Winds and seas higher in and near thunderstorms.    $$