Marine Weather and Tide Forecast for La Parguera, PR

.Short Term(Today through Tuesday)...
Issued at 131 AM AST Sun Apr 19 2026

Overnight, most showers shifted over the surrounding waters, with some activity filtering across the eastern half of Puerto Rico, Vieques, Culebra, and the U.S. Virgin Islands. Rainfall accumulations were generally light, and conditions remained relatively calm. Winds were light and variable, with temperatures in the 70s across urban and coastal areas and in the 60s across the mountainous interior. A Flood Warning remains in effect for the Culebrinas River due to previous rainfall, which has kept river levels elevated and continues to impact nearby areas and roadways.

For today, residual moisture will support passing showers at times across eastern Puerto Rico during the morning hours, followed by an increase in rainfall and thunderstorm development this afternoon across the interior and western portions of the island.
The latest model guidance indicates above-normal precipitable water values, mid-level moisture, and relatively cool 500 mb temperatures favoring convective development. As a result, the flooding risk will remain limited to elevated, particularly in areas experiencing persistent or repeated rainfall. Despite this activity, a gradual introduction of drier air is expected to begin through the day.

From Monday into Tuesday, drier and more stable conditions are expected as an upper-level trough shifts eastward and a mid-level ridge builds from the west. A drier airmass filtering in from the northeast will limit moisture depth, with most moisture confined below around 700–800 mb. Even so, typical diurnal convection will persist, with afternoon showers and isolated thunderstorms developing over interior and western Puerto Rico, along with passing showers affecting eastern areas overnight and during the morning hours. Flooding risk will decrease to limited, although localized impacts will remain possible where heavier showers develop.

Overall, the primary hazards will continue to include urban and small stream flooding, rapid river rises, landslides, and lightning. Soils remain saturated and rivers elevated, resulting in a low threshold for flooding impacts. Persistent or repeated showers and thunderstorms may quickly lead to localized flooding, particularly in flood-prone and mountainous areas. Gusty winds associated with thunderstorms could result in isolated downed trees and power lines. While conditions gradually improve by Monday, localized hazards will persist through Tuesday where heavier rainfall occurs. Residents and visitors should remain alert and continue to monitor the latest forecasts.

.Long Term(Wednesday through Sunday)...
Issued at 131 AM AST Sun Apr 19 2026

A shift towards relatively drier and more stable conditions is forecast to start the long term period with seasonal Precipitable Water (PWAT) values. PWAT values are forecast to generally stay at normal, though periods of high-end normal to above-normal values are possible as moisture is steered towards from the Caribbean to the region. A series of surface highs and frontal lows will dominate the local wind pattern, maintain light to moderate northeasterly, then southeasterly, then southerly and then southwesterly winds during the period. Local weather will be seasonal. Expect passing showers over windward sectors during the morning and afternoon hours. The focus of afternoon convective activity will vary in location each day. On Wednesday and Thursday, interior to southwestern Puerto Rico. On Friday and Saturday, interior to northern Puerto Rico. On Sunday, north-central to northeastern Puerto Rico. The combination of available moisture, daytime heating, and local effects could lead to moderate to heavy rainfall and isolated thunderstorms during these afternoon periods. Temperatures at the 500 mb level are forecast to remain seasonal. Isolated thunderstorms are forecast each afternoon, particularly toward the end of the period due to a nearby mid-to-upper trough. Temperatures at 925 mb will also stay seasonal throughout most of the period, although increasing to above normal at times under the southerly flow.

AVIATION
(06Z TAFS)
Issued at 131 AM AST Sun Apr 19 2026

VFR conditions across all TAF sites. Periods of brief MVFR with VCTS/SHRA after 19/17Z across TJSJ and TJBQ. Prevailing winds should remain from east around 10 to 15 kts gusts around 25 knots after 19/14Z or near VCTS/SHRA and with sea breeze variations.

MARINE
Issued at 131 AM AST Sun Apr 19 2026

Periods of strong thunderstorms, particularly across the western waters of Puerto Rico are expected during the afternoon hours. A surface high pressure over the Atlantic will promote mainly moderate to fresh easterly winds across the offshore Atlantic waters and local Caribbean passages, resulting in moderate to locally choppy seas through today. Small craft operators should exercise caution. A small northeasterly swell will also continue to propagate across the Atlantic waters and Caribbean passages through early this week.

BEACH FORECAST
Issued at 131 AM AST Sun Apr 19 2026

A moderate risk of rip currents is expected to persist throughout the week across northern exposed beaches. This may result in life- threatening rip currents. Heed the advice of lifeguards, beach patrol flags, and posted signs.

A moderate risk of rip currents is expected to continue throughout the week along northern exposed beaches. Although the risk is moderate, rip currents can still become life-threatening. Always follow the guidance of lifeguards, beach patrol flags, and posted warning signs.

Visitors should also stay alert to changing weather conditions in addition to surf hazards. An unsettled weather pattern will persist at least through today, with the potential for heavy showers and thunderstorms capable of producing locally gusty winds and brief heavy rainfall, especially during the afternoon hours. Remain weather-aware, as conditions can change quickly, and be prepared to seek shelter immediately if thunder is heard.

For additional information and location-specific rip current details, please visit: weather.gov/beach/sju.

SJU WATCHES/WARNINGS/ADVISORIES
PR...None.
VI...None.
AM...None.