Buenos Aires Coast · Wednesday, Sep 23

Miramar Argentina

Updated Tue, Sep 22, 9:10 PM GMT-3

When to go

10:00 AM–12:00 PM

Strong wind — difficult conditions · Low confidence

7.4–7.7 ft · Offshore waves · not face height

Strong wind: 16.0 kt · offshore

Cautions

Strong wind or gusts up to 24.3 kt can make the session difficult; being first in the list does not make conditions good.
Strong wind or gusts up to 25.9 kt can make the session difficult; being first in the list does not make conditions good.
Strong wind or gusts up to 28.6 kt can make the session difficult; being first in the list does not make conditions good.

Forecast details

This is the best time in the forecast, though wind may make it choppy.

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.

7:00 AM–9:00 AM · America/Argentina/Buenos_Aires
Strong wind · up to 13.3 kt · reported gusts up to 24.1 kt
Caution: This is the best available wind comparison, not a favorable-wind label. Strong wind remains in the selected evidence.
Offshore waves: 7.9–8.3 ft across the period. Surf height unavailable. Tide data available; check the local tide response.
Wind source time: Sep 22, 8:30 PM GMT-3. 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 11.0 km from the mapped spot. Provider grid resolution is not established for this response.
Reference model hour: 11 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 NNW 12.4 kt

Tide 2.5 ft falling

Wave, wind and tide details

Offshore model swellSSE 7.8 ft @ 10sValid 2026-09-23 08:00 · America/Argentina/Buenos_AiresMarine grid -38.3750, -57.8750 · offshore model, not a local measurement

Offshore model sea8.1 ft @ 11.2sSignificant wave height including wind waves and swell; not breaking surfValid 2026-09-23 08:00 · America/Argentina/Buenos_Aires

Model windNNW 12.4 ktoffshoreValid 2026-09-23 08:00 · America/Argentina/Buenos_Aires11.8 kt offshore component

Tide2.5 ftfallingSHN Puerto Mar del Plata · 39.4 km from Miramar Argentina · predicted height relative to SHN reduction planeRetrieved Sep 22, 9:17 PM GMT-3 · provider issue time unavailable40% of adjacent local low–high range · descriptive, not a safety rating

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 Miramar Argentina
Time	Wind	Tide	Offshore swell
12 AM	N 7.3 ktcross-shore	1.5 ftrising	SSE 9.4 ft @ 9s
1 AM	N 9.1 ktcross-shore	2 ftrising	SSE 8.9 ft @ 9s
2 AM	N 10.1 ktcross-shore	2 ftrising	SSE 8.3 ft @ 9s
3 AM	N 9.8 ktcross-shore	2.5 ftrising	SSE 7.7 ft @ 9s
4 AM	N 9 ktcross-shore	2.5 ftrising	SSE 7.9 ft @ 9s
5 AM	N 10.1 ktoffshore	2.5 ftfalling	SSE 8.1 ft @ 9s
6 AM	N 11.3 ktoffshore	2.5 ftfalling	SSE 8.3 ft @ 10s
7 AM	NNW 11.8 ktoffshore	2.5 ftfalling	SSE 8.1 ft @ 10s
8 AM	NNW 12.4 ktoffshore	2.5 ftfalling	SSE 7.8 ft @ 10s
9 AM	NNW 13.3 ktoffshore	2.5 ftfalling	SSE 7.6 ft @ 10s
10 AM	NNW 11.1 ktoffshore	2 ftnear low	SSE 7.4 ft @ 10s
11 AM	NNW 15 ktoffshore	2.5 ftrising	SSE 7.2 ft @ 10s
Noon	NNW 16 ktoffshore	3 ftrising	SSE 7.0 ft @ 10s
1 PM	NNW 12.2 ktoffshore	3 ftrising	SSE 6.8 ft @ 10s
2 PM	NNW 14.2 ktoffshore	3.5 ftrising	SSE 6.6 ft @ 10s
3 PM	NNW 12.9 ktoffshore	4 ftrising	SE 6.5 ft @ 10s
4 PM	NNW 16.9 ktoffshore	4 ftrising	SE 6.4 ft @ 10s
5 PM	NNW 12.5 ktoffshore	4.5 ftfalling	SE 6.2 ft @ 10s
6 PM	NNW 13.6 ktoffshore	4 ftfalling	SE 6.0 ft @ 10s
7 PM	NNW 12.1 ktoffshore	3.5 ftfalling	SE 5.9 ft @ 10s
8 PM	NNW 11.4 ktoffshore	3 ftfalling	SE 5.8 ft @ 10s
9 PM	NNW 11.7 ktoffshore	2.5 ftfalling	SE 5.7 ft @ 10s
10 PM	NNW 11.8 ktoffshore	2 ftfalling	SE 5.6 ft @ 10s
11 PM	NNW 12.5 ktoffshore	1.5 ftfalling	SE 5.4 ft @ 10s

12 AMUnavailable

WindN 7.3 ktcross-shoreTide1.5 ftrisingOffshore swellSSE 9.4 ft @ 9s

1 AMUnavailable

WindN 9.1 ktcross-shoreTide2 ftrisingOffshore swellSSE 8.9 ft @ 9s

2 AMUnavailable

WindN 10.1 ktcross-shoreTide2 ftrisingOffshore swellSSE 8.3 ft @ 9s

3 AMUnavailable

WindN 9.8 ktcross-shoreTide2.5 ftrisingOffshore swellSSE 7.7 ft @ 9s

4 AMUnavailable

WindN 9 ktcross-shoreTide2.5 ftrisingOffshore swellSSE 7.9 ft @ 9s

5 AMUnavailable

WindN 10.1 ktoffshoreTide2.5 ftfallingOffshore swellSSE 8.1 ft @ 9s

6 AMUnavailable

WindN 11.3 ktoffshoreTide2.5 ftfallingOffshore swellSSE 8.3 ft @ 10s

7 AMUnavailable

WindNNW 11.8 ktoffshoreTide2.5 ftfallingOffshore swellSSE 8.1 ft @ 10s

8 AMUnavailable

WindNNW 12.4 ktoffshoreTide2.5 ftfallingOffshore swellSSE 7.8 ft @ 10s

9 AMUnavailable

WindNNW 13.3 ktoffshoreTide2.5 ftfallingOffshore swellSSE 7.6 ft @ 10s

10 AMUnavailable

WindNNW 11.1 ktoffshoreTide2 ftnear lowOffshore swellSSE 7.4 ft @ 10s

11 AMUnavailable

WindNNW 15 ktoffshoreTide2.5 ftrisingOffshore swellSSE 7.2 ft @ 10s

NoonUnavailable

WindNNW 16 ktoffshoreTide3 ftrisingOffshore swellSSE 7.0 ft @ 10s

1 PMUnavailable

WindNNW 12.2 ktoffshoreTide3 ftrisingOffshore swellSSE 6.8 ft @ 10s

2 PMUnavailable

WindNNW 14.2 ktoffshoreTide3.5 ftrisingOffshore swellSSE 6.6 ft @ 10s

3 PMUnavailable

WindNNW 12.9 ktoffshoreTide4 ftrisingOffshore swellSE 6.5 ft @ 10s

4 PMUnavailable

WindNNW 16.9 ktoffshoreTide4 ftrisingOffshore swellSE 6.4 ft @ 10s

5 PMUnavailable

WindNNW 12.5 ktoffshoreTide4.5 ftfallingOffshore swellSE 6.2 ft @ 10s

6 PMUnavailable

WindNNW 13.6 ktoffshoreTide4 ftfallingOffshore swellSE 6.0 ft @ 10s

7 PMUnavailable

WindNNW 12.1 ktoffshoreTide3.5 ftfallingOffshore swellSE 5.9 ft @ 10s

8 PMUnavailable

WindNNW 11.4 ktoffshoreTide3 ftfallingOffshore swellSE 5.8 ft @ 10s

9 PMUnavailable

WindNNW 11.7 ktoffshoreTide2.5 ftfallingOffshore swellSE 5.7 ft @ 10s

10 PMUnavailable

WindNNW 11.8 ktoffshoreTide2 ftfallingOffshore swellSE 5.6 ft @ 10s

11 PMUnavailable

WindNNW 12.5 ktoffshoreTide1.5 ftfallingOffshore swellSE 5.4 ft @ 10s

Tide

SHN Puerto Mar del Plata · 39.4 km from Miramar Argentina · SHN reduction plane

Interpolated tide height Recommended window

About this spot

Model-grid forecast requested at the mapped coordinate; reef, headland, and nearshore transformations are unresolved. Beach/jetty break. Named-break page reports an exposed beach and jetty with ideal south-southeast swell and northwest offshore wind; orientation reviewed at 135 degrees.

Mapped spot coordinate: -38.28, -57.84.

Mainland South America · Buenos Aires Province southeast-facing exposed southwest Atlantic beach and jetty coast · Ocean-facing bearing 135° · Location provenance

Model request point: Miramar Argentina (-38.28, -57.84). Model output times describe valid conditions; the provider does not expose the model run issue time in this response.

Forecast sources

Data coverage 3/7 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 D · MODEL_FIRST_AMERICAS · spot-level model point

National or regional meteorological marine bulletin
SMN documents 00/06/12/18 UTC Austral-WWIII wave runs in metres with 96-hour coverage, but its downloadable platform GRIB returned a Cloudflare challenge and no stable named-break payload is connected.UnavailableNo source time
The Buoy API
The nearest anonymous result was a virtual CFOSAT/Copernicus satellite cell 67.7 km away with a 2026-08-30 timestamp; it is stale and is not presented as a current in-situ wave observation.UnavailableNo source time
Servicio de Hidrografía Naval tide tables
SHN Puerto Mar del Plata · 39.4 km from Miramar Argentina; predicted high/low events in metres above the SHN reduction plane, converted to feet. Timestamp is retrieval time; provider issue time is not supplied.CurrentSep 22, 9:17 PM GMT-3
WorldTides API
WorldTides returned HTTP 400 API key invalid without a credential. Official SHN Mar del Plata predictions are used instead.UnavailableNo source time
Open-Meteo Marine API
1 of 1 configured model points availableCurrentSep 22, 8:30 PM GMT-3
Open-Meteo Weather API
1 of 1 configured model points availableCurrentSep 22, 8:30 PM GMT-3
Copernicus Marine Global Ocean Waves
Copernicus Marine requires an account/toolbox workflow and no independently connected response is available.UnavailableNo source time
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.