Rincon and West Coast · Wednesday, Sep 23

Marias

NWS San Juan · PRZ010; official reef-face range: 2–2 ft

Updated Tue, Sep 22, 8:20 PM AST

When to go

12:00 PM–2:00 PM

Looks good · Low confidence

1.6–1.7 ft · Offshore waves · not face height

Wind: 2.7 kt · direction unavailable

Forecast details

Light wind should keep the water smoother.

Other wind windows

Plan around the wind

The best available upcoming daylight wind sample to compare with the wave evidence. This compares wind only; wave size, tide suitability, and hazards can change your choice.

9:00 AM–11:00 AM · America/Puerto_Rico
Light wind · up to 2.3 kt · reported gusts up to 10.3 kt
Offshore waves: 1.6–1.6 ft across the period. Surf height unavailable. Tide data available; check the local tide response.
Wind source time: Sep 22, 7:45 PM AST. This is not the model run issue time.

How these periods are chosen

The planner prefers three consecutive hourly samples covering two daylight hours, but retains shorter one- or two-sample evidence when that is all the forecast provides. Light wind means at most 6 kt. Moderate offshore means at most 12 kt from land toward the sea when shore orientation is verified. Strong wind or known gusts of 20 kt or more remain visible as cautions instead of making the entire comparison disappear. These are comparison labels, not locally tested surf-quality or safety ratings. Missing gusts remain unknown. Terrain shelter, currents, closures, and your ability are not assessed.

Forecast confidence

Returned marine grid point is 2.8 km from the mapped spot. Provider grid resolution is not established for this response.
Reference model hour: 12 hours from now; historical residuals do not measure forecast lead-time error.
No accepted local model for these inputs: missing history, unsupported direction/period/height, or failed historical validation.
A mapped coordinate does not establish nearshore grid resolution or terrain/shelter accuracy.

Wind E 2.8 kt

Tide 1 ft falling

Wave, wind and tide details

Offshore model swellS 1.1 ft @ 6sValid 2026-09-23 08:00 · America/Puerto_RicoMarine grid 18.3750, -67.2917 · offshore model, not a local measurement

Offshore model sea1.6 ft @ 7.3sSignificant wave height including wind waves and swell; not breaking surfValid 2026-09-23 08:00 · America/Puerto_Rico

Model windE 2.8 ktcross-shoreValid 2026-09-23 08:00 · America/Puerto_Rico1.9 kt offshore component

Tide1 ftfallingNOAA Mayaguez 9759394 · 19.4 km from Marias · predicted height relative to MLLWRetrieved Sep 22, 8:28 PM AST · provider issue time unavailable67% of adjacent local low–high range · descriptive, not a safety rating

NWS San Juan · PRZ010

Rip Current Risk*...........Low. Surf Height.................Around 2 feet. Weather.....................Sunny until 12 PM, then partly sunny. Scattered showers with isolated thunderstorms. Winds.......................East winds around 5 mph.

WEDNESDAYOfficial breaking-surf height for Mayaguez and Vicinity PR; forecast-zone range, not a calibrated break transformationIssued Sep 22, 3:43 AM AST

Surf height unavailable. Coastal and offshore waves are not breaking-wave heights.

Surf and wind

Recommended window: No recommended window

Breaking surf is not reliably resolved. Hourly offshore swell and wind inputs are listed below.

Hourly forecast

Hourly surf forecast for Marias
Time	Wind	Tide	Offshore swell
12 AM	E 2.8 ktcross-shore	0.5 ftnear low	S 1.2 ft @ 5s
1 AM	E 3.7 ktcross-shore	0.5 ftrising	S 1.2 ft @ 4s
2 AM	E 3.9 ktcross-shore	0.5 ftrising	S 1.2 ft @ 5s
3 AM	E 3.9 ktcross-shore	1 ftrising	S 1.1 ft @ 5s
4 AM	E 3.8 ktcross-shore	1 ftrising	S 1.1 ft @ 6s
5 AM	E 3.5 ktcross-shore	1 ftrising	S 1.1 ft @ 6s
6 AM	E 3.5 ktcross-shore	1 ftfalling	S 1.1 ft @ 6s
7 AM	E 4 ktcross-shore	1 ftfalling	S 1.1 ft @ 6s
8 AM	E 2.8 ktcross-shore	1 ftfalling	S 1.1 ft @ 6s
9 AM	E 1.9 ktcross-shore	0.5 ftfalling	WSW 1.1 ft @ 6s
10 AM	NE 2.1 ktcross-shore	0.5 ftfalling	WNW 0.9 ft @ 6s
11 AM	E 2.3 ktcross-shore	0.5 ftfalling	N 0.9 ft @ 6s
Noon	S 1.1 ktcross-shore	0.5 ftnear low	N 0.8 ft @ 7s
1 PM	N 1.3 ktonshore	0.5 ftrising	NNE 0.8 ft @ 9s
2 PM	NNW 2.7 ktonshore	0.5 ftrising	NNE 0.7 ft @ 10s
3 PM	NNE 3.8 ktcross-shore	1 ftrising	NNE 0.7 ft @ 10s
4 PM	E 5.9 ktcross-shore	1 ftrising	NNE 0.7 ft @ 10s
5 PM	ENE 3.4 ktcross-shore	1 ftrising	NNE 0.7 ft @ 9s
6 PM	ENE 3.3 ktcross-shore	1.5 ftrising	ENE 0.9 ft @ 8s
7 PM	E 1.6 ktoffshore	1.5 ftfalling	ESE 1.0 ft @ 7s
8 PM	ESE 2.2 ktoffshore	1.5 ftfalling	SSE 1.2 ft @ 6s
9 PM	ESE 2.2 ktoffshore	1 ftfalling	SSE 1.2 ft @ 6s
10 PM	ESE 3.2 ktoffshore	1 ftfalling	SSE 1.2 ft @ 6s
11 PM	ESE 2.3 ktoffshore	1 ftfalling	SSE 1.2 ft @ 6s

12 AMUnavailable

WindE 2.8 ktcross-shoreTide0.5 ftnear lowOffshore swellS 1.2 ft @ 5s

1 AMUnavailable

WindE 3.7 ktcross-shoreTide0.5 ftrisingOffshore swellS 1.2 ft @ 4s

2 AMUnavailable

WindE 3.9 ktcross-shoreTide0.5 ftrisingOffshore swellS 1.2 ft @ 5s

3 AMUnavailable

WindE 3.9 ktcross-shoreTide1 ftrisingOffshore swellS 1.1 ft @ 5s

4 AMUnavailable

WindE 3.8 ktcross-shoreTide1 ftrisingOffshore swellS 1.1 ft @ 6s

5 AMUnavailable

WindE 3.5 ktcross-shoreTide1 ftrisingOffshore swellS 1.1 ft @ 6s

6 AMUnavailable

WindE 3.5 ktcross-shoreTide1 ftfallingOffshore swellS 1.1 ft @ 6s

7 AMUnavailable

WindE 4 ktcross-shoreTide1 ftfallingOffshore swellS 1.1 ft @ 6s

8 AMUnavailable

WindE 2.8 ktcross-shoreTide1 ftfallingOffshore swellS 1.1 ft @ 6s

9 AMUnavailable

WindE 1.9 ktcross-shoreTide0.5 ftfallingOffshore swellWSW 1.1 ft @ 6s

10 AMUnavailable

WindNE 2.1 ktcross-shoreTide0.5 ftfallingOffshore swellWNW 0.9 ft @ 6s

11 AMUnavailable

WindE 2.3 ktcross-shoreTide0.5 ftfallingOffshore swellN 0.9 ft @ 6s

NoonUnavailable

WindS 1.1 ktcross-shoreTide0.5 ftnear lowOffshore swellN 0.8 ft @ 7s

1 PMUnavailable

WindN 1.3 ktonshoreTide0.5 ftrisingOffshore swellNNE 0.8 ft @ 9s

2 PMUnavailable

WindNNW 2.7 ktonshoreTide0.5 ftrisingOffshore swellNNE 0.7 ft @ 10s

3 PMUnavailable

WindNNE 3.8 ktcross-shoreTide1 ftrisingOffshore swellNNE 0.7 ft @ 10s

4 PMUnavailable

WindE 5.9 ktcross-shoreTide1 ftrisingOffshore swellNNE 0.7 ft @ 10s

5 PMUnavailable

WindENE 3.4 ktcross-shoreTide1 ftrisingOffshore swellNNE 0.7 ft @ 9s

6 PMUnavailable

WindENE 3.3 ktcross-shoreTide1.5 ftrisingOffshore swellENE 0.9 ft @ 8s

7 PMUnavailable

WindE 1.6 ktoffshoreTide1.5 ftfallingOffshore swellESE 1.0 ft @ 7s

8 PMUnavailable

WindESE 2.2 ktoffshoreTide1.5 ftfallingOffshore swellSSE 1.2 ft @ 6s

9 PMUnavailable

WindESE 2.2 ktoffshoreTide1 ftfallingOffshore swellSSE 1.2 ft @ 6s

10 PMUnavailable

WindESE 3.2 ktoffshoreTide1 ftfallingOffshore swellSSE 1.2 ft @ 6s

11 PMUnavailable

WindESE 2.3 ktoffshoreTide1 ftfallingOffshore swellSSE 1.2 ft @ 6s

Tide

NOAA Mayaguez 9759394 · 19.4 km from Marias · MLLW

Interpolated tide height Recommended window

About this spot

Model-grid forecast requested at the mapped coordinate; reef, headland, and nearshore transformations are unresolved. Reef break.

Mapped spot coordinate: 18.36, -67.27.

Mainland · Coast not verified · Ocean-facing bearing 315° · Location provenance

Model request point: Marias (18.36, -67.27). Model output times describe valid conditions; the provider does not expose the model run issue time in this response.

Forecast sources

Data coverage 4/5 sources

Source availability is not forecast accuracy. Where an empirical model passes historical testing, its error and interval coverage are shown above. Source count cannot increase that confidence.

Coverage tier A+ · US_PR_VI · spot-level model point

NWS San Juan · PRZ010; official reef-face range2–2 ftCurrent · Sep 22, 3:43 AM AST

NWS San Juan · PRZ010
NWS San Juan · PRZ010; Official breaking-surf height for Mayaguez and Vicinity PR; forecast-zone range, not a calibrated break transformationCurrentSep 22, 3:43 AM AST
CARICOOS ERDDAP
No current individually assigned CARICOOS observation covers this spot.UnavailableNo source time
NOAA NDBC real-time station files
Current buoy observations are not forecasts for the selected future date.Not applicableNo source time
NOAA CO-OPS Tides and Currents API
NOAA Mayaguez 9759394 · 19.4 km from Marias; predicted high/low events above MLLW, converted to feet. Timestamp is retrieval time; provider issue time is not supplied.CurrentSep 22, 8:28 PM AST
Open-Meteo Marine API
1 of 1 configured model points availableCurrentSep 22, 7:45 PM AST
Open-Meteo Weather API
1 of 1 configured model points availableCurrentSep 22, 7:45 PM AST
Surf-Forecast public pages
Spot discovery and break-specific HTML fallbackNot applicableNo source time
Surfline public spot pages
Break-specific comparison, cams, and metadataNot applicableNo source time

How best guesses are made

Best guesses combine usable wave and wind evidence, with qualitative confidence and specific limitations. A missing tide or local surf-height model does not prevent useful guidance. Tide levels use the named station datum; their effect at this break remains uncertain. Wind direction is relative to the mapped beach orientation, without calibrated terrain or shelter effects. The comparison is a heuristic, not a measured quality rating.