textproduct: San Juan

KEY MESSAGES

Issued at 759 PM AST Fri Oct 23 2026

- Showers and isolated thunderstorms will continue through the weekend, with locally heavy rainfall that may lead to urban and small-stream flooding, rapid river rises, and isolated flash flooding, particularly during the afternoon hours.

- A north-northwesterly swell will continue to produce dangerous breaking waves and life-threatening rip currents across the exposed northern beaches through at least Saturday. Additional swell pulses may keep swimming conditions hazardous into early next week. Please refer to the Marine and Beach Forecast sections below for detailed information.

- Warm and humid conditions will persist through the next several days. Heat impacts may become more pronounced early next week, especially along the coasts, in low- lying areas, interior valleys, and urban areas.

MARINE

Issued at 759 PM AST Fri Oct 23 2026

Moderate to locally fresh east-to-southeast winds will prevail through the weekend as the surface pressure gradient tightens across regional waters. A north-northwesterly swell will maintain seas of 5 to 7 feet across the Atlantic waters and the Mona Passage today, with additional pulses of northerly swell continuing through early next week. Small Craft Advisories remain in effect for the Atlantic waters and the Mona Passage through at least Saturday. Isolated thunderstorms and scattered showers will persist across the Caribbean waters and western Puerto Rico today, bringing the potential for locally higher seas and strong, gusty winds.

BEACH FORECAST

Issued at 759 PM AST Fri Oct 23 2026

The arrival of a long-period north-northwesterly swell today will produce hazardous breaking waves of 6 to 12 feet along exposed northern and western coastlines of Puerto Rico, as well as Culebra and St. Thomas. Consequently, a High Surf Advisory is in effect for north-facing beaches of Puerto Rico through at least 6 PM AST this afternoon, and a Rip Current Statement remains in effect for beaches along western-to-northeastern Puerto Rico, Culebra, and the northern U.S. Virgin Islands through at least Saturday.

Beachgoers and inexperienced swimmers should follow lifeguard instructions and avoid swimming or walking near rock formations on exposed beaches. Additional pulses of the northerly swell are expected through early next week, maintaining an elevated risk of life-threatening rip currents.

SJU WATCHES/WARNINGS/ADVISORIES

PR...High Rip Current Risk through late Saturday night for PRZ001-002- 005-008-012.

High Rip Current Risk through Saturday afternoon for PRZ010.

VI...High Rip Current Risk through Saturday afternoon for VIZ001.

AM...Small Craft Advisory until noon AST Saturday for AMZ711-712-741.