South Florida Atlantic · Wednesday, Sep 23

South Beach Miami

NWS MFL · FLZ173; official reef-face range: 0–1 ft

Updated Tue, Sep 22, 8:30 PM EDT

When to go

8:00 AM–10:00 AM

Looks good · Low confidence

1.2–1.2 ft · Offshore waves · not face height

Wind: 5.1 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.

10:00 AM–12:00 PM · America/New_York
Light wind · up to 4.3 kt · reported gusts up to 5.6 kt
Offshore waves: 1.2–1.2 ft across the period. Surf height unavailable. Tide data available; check the local tide response.
Wind source time: Sep 22, 7:45 PM EDT. 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 2.5 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 SW 0.7 kt

Tide 2 ft falling

Wave, wind and tide details

Offshore model swellSE 1.1 ft @ 3sValid 2026-09-23 08:00 · America/New_YorkMarine grid 25.7917, -80.1250 · offshore model, not a local measurement

Offshore model sea1.2 ft @ 3.5sSignificant wave height including wind waves and swell; not breaking surfValid 2026-09-23 08:00 · America/New_York

Model windSW 0.7 ktcross-shoreValid 2026-09-23 08:00 · America/New_York0.4 kt offshore component

Tide2 ftfallingNOAA Virginia Key 8723214 · 5.3 km from South Beach Miami · predicted height relative to MLLWRetrieved Sep 22, 8:31 PM EDT · provider issue time unavailable86% of adjacent local low–high range · descriptive, not a safety rating

NWS MFL · FLZ173

Rip Current Risk*...........Low. Surf Height.................1 foot or less. Thunderstorm Potential**....High. Waterspout Risk**...........None. Weather.....................Mostly cloudy. Showers and thunderstorms likely. High Temperature............In the mid 80s. Winds.......................South winds around 5 mph. Tides... Miami Harbor Entrance....High at 06:44 AM EDT. Low at 12:41 PM EDT. Sunrise.....................7:09 AM. Sunset......................7:17 PM.

WEDNESDAYOfficial breaking-surf height for Coastal Miami-Dade; forecast-zone range, not a calibrated break transformationIssued Sep 22, 4:21 PM EDT

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 South Beach Miami
Time	Wind	Tide	Offshore swell
12 AM	WSW 4 ktoffshore	1 ftfalling	SSE 0.7 ft @ 3s
1 AM	SE 4.2 ktonshore	1 ftrising	SSE 0.7 ft @ 3s
2 AM	ESE 7.1 ktonshore	1 ftrising	SSE 0.7 ft @ 2s
3 AM	ESE 7.4 ktonshore	1.5 ftrising	SSE 0.9 ft @ 2s
4 AM	SSE 4.4 ktcross-shore	1.5 ftrising	SSE 1.1 ft @ 2s
5 AM	NE 1.2 ktonshore	2 ftrising	SE 1.2 ft @ 2s
6 AM	W 3.3 ktoffshore	2 ftrising	SE 1.2 ft @ 3s
7 AM	WNW 2.2 ktoffshore	2.5 ftnear high	SE 1.1 ft @ 3s
8 AM	SW 0.7 ktcross-shore	2 ftfalling	SE 1.1 ft @ 3s
9 AM	SSE 5.1 ktcross-shore	2 ftfalling	SE 1.1 ft @ 3s
10 AM	WSW 3 ktoffshore	1.5 ftfalling	SE 1.1 ft @ 3s
11 AM	WNW 1.4 ktoffshore	1.5 ftfalling	SE 1.1 ft @ 3s
Noon	W 4.3 ktoffshore	1 ftfalling	SE 1.1 ft @ 3s
1 PM	WNW 5.5 ktoffshore	0.5 ftnear low	SE 1.1 ft @ 3s
2 PM	N 6.1 ktcross-shore	1 ftrising	SE 1.0 ft @ 3s
3 PM	NE 9.5 ktonshore	1 ftrising	SE 1.0 ft @ 3s
4 PM	NNE 4.3 ktcross-shore	1.5 ftrising	SE 1.0 ft @ 3s
5 PM	N 4.3 ktcross-shore	1.5 ftrising	SE 1.0 ft @ 3s
6 PM	NW 4.6 ktcross-shore	2 ftrising	SE 1.0 ft @ 3s
7 PM	NNW 3.8 ktcross-shore	2.5 ftnear high	SE 0.9 ft @ 3s
8 PM	W 0.8 ktoffshore	2.5 ftfalling	SE 0.9 ft @ 3s
9 PM	WSW 6 ktoffshore	2 ftfalling	SE 0.9 ft @ 3s
10 PM	WSW 3.8 ktoffshore	2 ftfalling	SE 0.9 ft @ 3s
11 PM	WNW 3.8 ktoffshore	1.5 ftfalling	SE 0.8 ft @ 3s

12 AMUnavailable

WindWSW 4 ktoffshoreTide1 ftfallingOffshore swellSSE 0.7 ft @ 3s

1 AMUnavailable

WindSE 4.2 ktonshoreTide1 ftrisingOffshore swellSSE 0.7 ft @ 3s

2 AMUnavailable

WindESE 7.1 ktonshoreTide1 ftrisingOffshore swellSSE 0.7 ft @ 2s

3 AMUnavailable

WindESE 7.4 ktonshoreTide1.5 ftrisingOffshore swellSSE 0.9 ft @ 2s

4 AMUnavailable

WindSSE 4.4 ktcross-shoreTide1.5 ftrisingOffshore swellSSE 1.1 ft @ 2s

5 AMUnavailable

WindNE 1.2 ktonshoreTide2 ftrisingOffshore swellSE 1.2 ft @ 2s

6 AMUnavailable

WindW 3.3 ktoffshoreTide2 ftrisingOffshore swellSE 1.2 ft @ 3s

7 AMUnavailable

WindWNW 2.2 ktoffshoreTide2.5 ftnear highOffshore swellSE 1.1 ft @ 3s

8 AMUnavailable

WindSW 0.7 ktcross-shoreTide2 ftfallingOffshore swellSE 1.1 ft @ 3s

9 AMUnavailable

WindSSE 5.1 ktcross-shoreTide2 ftfallingOffshore swellSE 1.1 ft @ 3s

10 AMUnavailable

WindWSW 3 ktoffshoreTide1.5 ftfallingOffshore swellSE 1.1 ft @ 3s

11 AMUnavailable

WindWNW 1.4 ktoffshoreTide1.5 ftfallingOffshore swellSE 1.1 ft @ 3s

NoonUnavailable

WindW 4.3 ktoffshoreTide1 ftfallingOffshore swellSE 1.1 ft @ 3s

1 PMUnavailable

WindWNW 5.5 ktoffshoreTide0.5 ftnear lowOffshore swellSE 1.1 ft @ 3s

2 PMUnavailable

WindN 6.1 ktcross-shoreTide1 ftrisingOffshore swellSE 1.0 ft @ 3s

3 PMUnavailable

WindNE 9.5 ktonshoreTide1 ftrisingOffshore swellSE 1.0 ft @ 3s

4 PMUnavailable

WindNNE 4.3 ktcross-shoreTide1.5 ftrisingOffshore swellSE 1.0 ft @ 3s

5 PMUnavailable

WindN 4.3 ktcross-shoreTide1.5 ftrisingOffshore swellSE 1.0 ft @ 3s

6 PMUnavailable

WindNW 4.6 ktcross-shoreTide2 ftrisingOffshore swellSE 1.0 ft @ 3s

7 PMUnavailable

WindNNW 3.8 ktcross-shoreTide2.5 ftnear highOffshore swellSE 0.9 ft @ 3s

8 PMUnavailable

WindW 0.8 ktoffshoreTide2.5 ftfallingOffshore swellSE 0.9 ft @ 3s

9 PMUnavailable

WindWSW 6 ktoffshoreTide2 ftfallingOffshore swellSE 0.9 ft @ 3s

10 PMUnavailable

WindWSW 3.8 ktoffshoreTide2 ftfallingOffshore swellSE 0.9 ft @ 3s

11 PMUnavailable

WindWNW 3.8 ktoffshoreTide1.5 ftfallingOffshore swellSE 0.8 ft @ 3s

Tide

NOAA Virginia Key 8723214 · 5.3 km from South Beach Miami · MLLW

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.

Mapped spot coordinate: 25.77, -80.13.

Mainland · Coast not verified · Ocean-facing bearing 90° · Location provenance

Model request point: South Beach Miami (25.77, -80.13). Model output times describe valid conditions; the provider does not expose the model run issue time in this response.

Forecast sources

Data coverage 4/4 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_EAST · spot-level model point

NWS MFL · FLZ173; official reef-face range0–1 ftCurrent · Sep 22, 4:21 PM EDT

NWS MFL · FLZ173
NWS MFL · FLZ173; Official breaking-surf height for Coastal Miami-Dade; forecast-zone range, not a calibrated break transformationCurrentSep 22, 4:21 PM EDT
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 Virginia Key 8723214 · 5.3 km from South Beach Miami; predicted high/low events above MLLW, converted to feet. Timestamp is retrieval time; provider issue time is not supplied.CurrentSep 22, 8:31 PM EDT
Open-Meteo Marine API
1 of 1 configured model points availableCurrentSep 22, 7:45 PM EDT
Open-Meteo Weather API
1 of 1 configured model points availableCurrentSep 22, 7:45 PM EDT
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.