textproduct: San Juan

KEY MESSAGES

Issued at 250 PM AST Mon Feb 9 2026

* Hazardous marine and coastal conditions across all the local waters and most of the coastal areas, except for the southern coastal areas.

* There are several marine/coastal advisories due to seas up to 12 feet and breaking waves up to 15 ft, a coastal flood advisory ,a high surf advisory, a rip current statement, and several small craft advisories. For more detailed information, please visit the marine and beach forecast section below.

* Variable weather conditions will persist under a northerly wind flow for the rest of Today into tomorrow. Weather conditions are forecast to shift toward an unsettled pattern from late Wednesday to Thursday. These conditions call for a limited shower activity across some sections of Puerto Rico. Please refer to the Graphical Hazardous Outlook (GHWO) on weather.gov/sju.

* For the U.S. Virgin Islands, variable weather conditions with cloudiness across the islands and limited shower activity.

* Colder temperatures for tonight into tomorrow due to a northerly wind flow across the region.

Short Term(This evening through Wednesday)

Issued at 250 PM AST Mon Feb 9 2026

A variable weather pattern remained during the morning hours with limited cloudiness across the islands. As the day progressed, cloudiness from the north moved across the islands and started to develop showers, especially across northern, central, and northeastern sections. According to the Doppler Radar, showers remained in the light to moderate showers with minimal rainfall accumulations. For the afternoon hours, showers also developed across the southcentral sectionss including the municipality of Ponce and the southeast sections. Winds persisted from the north at 15 mph, especially near some coastal areas were showers affected and some gusty winds mostly across the U.S. Virgin Islands. Daytime temperatures ranged from the upper 70s to the low 80s across the northeastern sections, where showers and cloudiness affected most of the morning and limited sunshine. A slight pattern was observed across the southern sections of Puerto Rico where temperature rise up to the upper 80s, with values between 84 and 86 degrees.

For the rest of the day and into the early evening, variable weather will persist, with widespread cloudiness across the islands. Satellite imagery shows an area with limited cloud activity forecast to move across the islands, reducing cloudiness. Although conditions will briefly improve, Hi-Resolution precipitation model guidance suggests an increase in cloudiness and moisture in the early morning hours on Tuesday, which could increase shower activity across the islands. Therefore, another round of showers is expected under a northerly wind pattern tomorrow morning, then again in the early afternoon. At the upper levels, a strong trough will increase the wind divergence along the islands. This change at the mid to upper levels might enhance some shower development; however, thunderstorms are not likely. For Wednesday, conditions will slightly deteriorate in terms of temperatures at 500 MB, with values ranging from -7 to -9 degrees across the northern sections of the region. At the surface, a strong high pressure centered across the central Atlantic will induce a more easterly wind flow for Wednesday. As a result, temperatures on Wednesday are forecast to remain on the seasonal pattern and the variations of the sunshine periods. For later on Wednesday, under this evolving pattern, the sitting moisture field from an old frontal bouandary move back across the islands late on Wednesday.

Long Term(Thursday through next Sunday)

Issued at 420 am AST Mon Feb 9 2026

A surface high-pressure system centered over the central Atlantic shifting eastward will support light to moderate southeasterly winds across the region. As the high continues to move eastwards, abundant moisture associated with the remnants of a frontal boundary will lift northward from Caribbean waters, reaching the area through at least late Friday.

By Friday, an upper-level trough will approach from the northwest, increasing atmospheric instability. The combination of southeasterly flow and deep moisture will enhance the potential for widespread showers throughout the long-term period. Precipitable water (PWAT) analysis shows values climbing from 1.25 inches on Thursday to 1.75 inches by Friday, ranging from seasonal to above-normal climatological levels.

Consequently, morning showers are expected across eastern Puerto Rico and the U.S. Virgin Islands, followed by afternoon convective activity over central and northwestern Puerto Rico. While temperatures at the 925 mb level will remain below normal through Friday, they are expected to rise on Saturday, bringing warmer conditions back by the weekend.

AVIATION

(18Z TAFS) Issued at 250 PM AST Mon Feb 9 2026

RA and SHRA will continue to result in lower ceilings affecting the FL020 to FL080. These conditions will briefly induce MVFR across the TAF sites during the period. Winds will continue from the N at 15 knots with gusty winds until 09/23Z, then increase again from 10/12Z to 15 knots from the N with gusty winds during the day. VCSH to SHRA from 10/09 to 10/18Z will continue to affect the VIS at TJSJ, TJPS, TIST, and TISX.

MARINE

Issued at 250 PM AST Mon Feb 9 2026

A surface high-pressure system moving off the U.S. East Coast will promote moderate to fresh northerly winds through Tuesday, eventually veering to northeasterly and easterly from Wednesday through Thursday. A weak frontal boundary will linger over the Caribbean waters and the Anegada Passage during the next few days, while another weak front moves into the offshore Atlantic waters. These features will promote mostly cloudy skies across portions of the regional waters. A large, long-period northwest swell will maintain hazardous seas over the next few days. Small Craft Advisories are in effect for most local waters through at least Wednesday and may extend through Thursday. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating under these conditions.

BEACH FORECAST

Issued at 250 PM AST Mon Feb 9 2026

A large, long-period northwest swell will continue to spread across the Atlantic waters and local Caribbean passages over the next few days. The peak of this swell event is expected this evening through Tuesday morning. Current observations at the San Juan buoy (41053) show seas around 9 feet with periods of 14 to 15 seconds, which could result in breaking waves of approximately 13 to 16 feet. High surf conditions, life-threatening rip currents, and minor coastal flooding are expected with this large breaking wave action along the northwest to northeast coasts of Puerto Rico, Culebra, the northern U.S. Virgin Islands, and Vieques, which was recently added to the High Surf Advisory. A Coastal Flood Advisory, High Surf Advisory, and High Rip Current Statements remain in effect.

Beachgoers are urged to stay out of the water, continue monitoring forecast updates, and follow all local advisories, warnings, and guidance from lifeguards and local officials as conditions continue to deteriorate.

SJU WATCHES/WARNINGS/ADVISORIES

PR...Coastal Flood Advisory until 6 PM AST Tuesday for PRZ001-002-005- 008-010-012.

High Rip Current Risk through Wednesday afternoon for PRZ001-002- 005-008-010>013.

High Surf Advisory until 6 PM AST Tuesday for PRZ001-002-005-008- 010-012-013.

VI...Coastal Flood Advisory until 6 PM AST Tuesday for VIZ001.

High Rip Current Risk through Wednesday afternoon for VIZ001-002.

High Surf Advisory until 6 PM AST Tuesday for VIZ001.

AM...Small Craft Advisory until 6 PM AST Wednesday for AMZ711-712-716- 723-726-741-742-745.

Small Craft Advisory from 6 PM this evening to 6 PM AST Wednesday for AMZ733.