Coastal conditions

San Juan Bay

Harbor · Puerto Rico · Puerto Rico / San Juan Bay

Active coastal or marine alerts

  • Heat Advisory

    Severity: Moderate

    Heat Advisory issued September 5 at 2:19AM AST until September 5 at 5:00PM AST by NWS San Juan PR

    Begins Sep 5, 2026, 10:00 AM · Ends Sep 5, 2026, 5:00 PM

    Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action w…

    Official NWS alert

Current Coastal Rating

Fair · 56

Beta

Conditions are mixed. Review the details below before heading out.

Scores are model-specific and are not directly comparable across water types.

Should I Go?

Trip conditions only. Target-species activity and seasonal fishery patterns are not yet included.

Consider

Trip conditions may be workable, but important cautions or data limitations remain.

High confidence in the evaluated inputs — observational coverage is partial. Required data sources were available and the key inputs were current.

Evaluates trip conditions using weather, tides, currents, waves, daylight, and active alerts.

  • Policy PR_PATH2_PROVISIONAL_POLICY_V1. Authority NATIONAL_NWS_ISSUANCE_FLOORS_SHARED_EVALUATOR.
  • Provisional conservative non-empirical Puerto Rico product-policy. Not accepted Caribbean fishing thresholds. Not PATH1. Not calibrated V1 science.
  • NWS national SCA / Gale issuance floors are safety anchors, not optimal fishing cuts.
  • Does not inherit Northeast, Mid-Atlantic, Southeast, Gulf, PSW, PNW, or Hawaii numerics or weights.
  • empiricalCalibratedFishingThresholds=false. puertoRicoSpecificWeights=false. productionThresholdsAuthorized=false. path1Authorized=false.
  • Missing waves are not calm. Forecast is not an observation. Prediction is not an observation.
  • Current axis is UNSUPPORTED. Null current is not slack or zero. Tide is not current.
  • Verdict capped at Consider while calibration remains incomplete. Adverse Wait / Do Not Go / Unavailable are not weakened.
  • Open-coast or too-remote wave is supporting/context only and is not inner-water scoring truth.

About this recommendation

Uses StrikeTracks coastal policy 2026-07.

Recommended window

Saturday · 6:00 AM–9:00 AM AST

Window score

76

Max wind
11 mph
Max gust
28 mph
Daylight
67% of window
Tide state
falling

Why

  • Tide timing is within the preferred trip-condition range for this destination.

Current Readings

Updated Sep 5, 2026, 3:50 AM

NOAA Station selected

Source

  • NOAA CO-OPS
  • San Juan, La Puntilla, San Juan Bay station
  • 0.0 mi from destination
Water level
1.3 ft MLLW

Updated 14 min ago

Past 7 Days

NOAA Station selected

Water level

Window Aug 29, 2026, 3:50 AM Sep 5, 2026, 3:50 AM (rolling 168 hours)

Water level over the past 7 days. 1676 observations · from Aug 29, 2026, 3:54 AM · to Sep 5, 2026, 3:36 AM Range 0.4 ft MLLW to 2.2 ft MLLW.

Readings increased over the available period.

1676 observations · from Aug 29, 2026, 3:54 AM · to Sep 5, 2026, 3:36 AM

  • NOAA CO-OPS · San Juan, La Puntilla, San Juan Bay · Station 9755371
  • Station at destination
  • Approximately 0.0 mi from destination
  • Observation type: observed
  • Unit: ft
  • Datum: MLLW

Nearby coastal destinations

  • Puerto Rico · North-coast Atlantic shelf drop north of San Juan, not El Morro / bay · Offshore

    Approximately 3.7 miles away

  • Fajardo32.9 mi

    Puerto Rico · Puerto Rico / Fajardo · Harbor

    Approximately 32.9 miles away

  • Ponce47.3 mi

    Puerto Rico · Puerto Rico / Ponce · Harbor

    Approximately 47.3 miles away

Predicted Tides

Predicted

Falling

Next low tide

Sep 5, 2026, 8:39 AM

In 4 hr 49 min

-0.0 ft MLLW

Previous

High · Sep 5, 2026, 1:59 AM · 1.1 ft MLLW

Following

High · Sep 5, 2026, 4:25 PM · 1.9 ft MLLW

Tide station at destination

San Juan · NOAA 9755371

Predicted Tidal Current

Predicted

No representative tidal-current prediction station is configured for this destination.

Tidal-current timing can differ from high and low tide timing.

Fishery Profile

Fishery Overview

San Juan Bay harbor and metro charter fishery

A San Juan Bay harbor/estuary and metro charter fishery. Tarpon and snook use the estuary and harbor edges; mahi-mahi and tuna are the metro charter overlay. This is not Fajardo and not a statewide Puerto Rico paste.

Fishery type
  • Harbor estuary charter
Fishing modes
  • Inshore boat
  • Shore
Habitat and structure
San Juan Bay harbor bulkheads and estuary edges · Metro charter run outside the bay mouth · Mangrove and channel margins inside the bay

Static seasonal guidance · Last reviewed Sep 3, 2026

Not a live bite forecast.

Fishery Targets

Tarpon, snook, and jacks are year-round. Mahi-mahi is a documented pelagic overlay; destination month timing is not encoded on this harbor pin. Exact legal seasons are not invented.

Species images are AI-generated illustrations for visual reference and may simplify natural variation. Fishery records are based on the cited agency and editorial sources. About fish illustrations

  • Atlantic tarpon illustration

    Tarpon

    Primary

    Megalops atlanticus

    No seasonal pulse known

    Year-round San Juan estuary/harbor occurrence. Destination month timing is not encoded as a legal season.

  • Common snook illustration

    Common snook

    Primary

    Centropomus undecimalis

    No seasonal pulse known

    Year-round harbor/estuary occurrence. Destination month timing is not encoded as a legal season.

  • Jack crevalle illustration

    Crevalle jack

    Secondary

    Caranx hippos

    No seasonal pulse known

    Harbor structure and estuary edges.

  • Mahi-mahi illustration

    Mahi-mahi

    Secondary

    Coryphaena hippurus

    Also called Dorado

    No seasonal pulse known

    Metro charter pelagic overlay. Occurrence is documented; destination month timing is not encoded as a legal season.

  • Yellowfin tuna illustration

    Yellowfin tuna

    Secondary

    Thunnus albacares

    Also called Ahi

    No seasonal pulse known

    Metro charter pelagic overlay. Year-round occurrence; destination month timing is not encoded as a legal season.

Profile guidance — exact seasonal timing is not available for every target.

Access, Safety and Regulations

Access

Public harbor and metro charter docks. Confirm current DNER and federal Caribbean rules. Nonresident license may be required.

Primary hazards

Harbor traffic, heat, and thunderstorms. Missing waves are not calm.

Fishery considerations

  • Tide is NOAA 9755371 San Juan, at-location. Current is unsupported and is not inferred from tide.
  • NWS San Juan point forecast.

Regulations

Size limits, seasons, and possession rules change. Verify the current official regulations before fishing.

Location and Access

Cataloged coastal fishing destination

Harbor · Puerto Rico

Loading map…

The map marker represents the cataloged waterbody or monitoring location and may not indicate legal parking or public access. Confirm access through the official information before visiting.

Data Sources

Planning limitation

Coastal conditions can vary over short distances. Predictions and remote observations are planning information, not guarantees of access or safety.

  • Pin is San Juan Bay harbor/estuary and metro charter waters. This is not Fajardo, not Arecibo, and not an inner-bay wave pin.
  • Current axis is UNSUPPORTED. Missing current is not slack or zero. Do not infer current from tide.
  • Missing waves are not calm. Forecast/prediction is not observation.
  • Customer Current Coastal Rating publishes only when CARIBBEAN_PUERTO_RICO_COASTAL_RATING_BETA_ENABLED is true. Then it is PUBLIC_BETA_CALIBRATING and capped at Consider. Default-off remains fail-closed unavailable. CARIBBEAN_PUERTO_RICO_V1 is a candidate only. PATH1 remains unauthorized. Coastal Estimated is unauthorized. Physical readings are not a calibrated empirical rating.