Central and South Chile · Wednesday, Sep 23

Renaca

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

When to go

8:00 AM–10:00 AM

Looks good · Low confidence

3.1–3.3 ft · Offshore waves · not face height

Wind: 1.4 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.

8:00 AM–10:00 AM · America/Santiago
Light wind · up to 1.4 kt · reported gusts up to 5.1 kt
Offshore waves: 3.1–3.3 ft across the period. Surf height unavailable. Tide data unavailable.
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 6.7 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.
Tide unavailable: assessment incomplete, especially at shallow reef breaks.
A mapped coordinate does not establish nearshore grid resolution or terrain/shelter accuracy.

Wind E 1.4 kt

Tide Unavailable

Wave, wind and tide details

Offshore model swellWSW 1.9 ft @ 7sValid 2026-09-23 08:00 · America/SantiagoMarine grid -32.9583, -71.6250 · offshore model, not a local measurement

Offshore model sea3.3 ft @ 8sSignificant wave height including wind waves and swell; not breaking surfValid 2026-09-23 08:00 · America/Santiago

Model windE 1.4 ktoffshoreValid 2026-09-23 08:00 · America/Santiago1.0 kt offshore component

TideUnavailableunavailableNo verified local tide station connected; no tide height estimated

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 Renaca
Time	Wind	Tide	Offshore swell
12 AM	WNW 0.4 ktcross-shore	Unavailableunavailable	SW 3.1 ft @ 4s
1 AM	ENE 0.3 ktoffshore	Unavailableunavailable	SW 3.0 ft @ 4s
2 AM	NNE 1.3 ktoffshore	Unavailableunavailable	SW 2.8 ft @ 4s
3 AM	NNE 0.7 ktoffshore	Unavailableunavailable	SW 2.6 ft @ 4s
4 AM	NE 1.9 ktoffshore	Unavailableunavailable	SW 2.6 ft @ 5s
5 AM	ENE 2.1 ktoffshore	Unavailableunavailable	SW 2.4 ft @ 6s
6 AM	E 2.2 ktoffshore	Unavailableunavailable	SW 2.4 ft @ 7s
7 AM	E 1.5 ktcross-shore	Unavailableunavailable	WSW 2.2 ft @ 7s
8 AM	E 1.4 ktoffshore	Unavailableunavailable	WSW 1.9 ft @ 7s
9 AM	E 1.4 ktoffshore	Unavailableunavailable	WSW 1.7 ft @ 7s
10 AM	WSW 1.4 ktonshore	Unavailableunavailable	WSW 1.7 ft @ 7s
11 AM	W 3.1 ktonshore	Unavailableunavailable	WSW 1.7 ft @ 7s
Noon	W 2.7 ktonshore	Unavailableunavailable	WSW 1.7 ft @ 7s
1 PM	WNW 2.2 ktcross-shore	Unavailableunavailable	WSW 1.8 ft @ 6s
2 PM	W 5.3 ktcross-shore	Unavailableunavailable	WSW 1.9 ft @ 6s
3 PM	W 5.7 ktonshore	Unavailableunavailable	WSW 2.0 ft @ 6s
4 PM	W 6.5 ktonshore	Unavailableunavailable	WSW 2.2 ft @ 7s
5 PM	WSW 7.1 ktonshore	Unavailableunavailable	WSW 2.4 ft @ 8s
6 PM	W 6.1 ktonshore	Unavailableunavailable	WSW 2.6 ft @ 9s
7 PM	WNW 3 ktcross-shore	Unavailableunavailable	WSW 2.7 ft @ 9s
8 PM	N 3.2 ktoffshore	Unavailableunavailable	WSW 2.8 ft @ 8s
9 PM	N 3.7 ktoffshore	Unavailableunavailable	WSW 2.9 ft @ 8s
10 PM	N 2 ktcross-shore	Unavailableunavailable	WSW 3.0 ft @ 8s
11 PM	N 1.7 ktoffshore	Unavailableunavailable	WSW 3.0 ft @ 8s

12 AMUnavailable

WindWNW 0.4 ktcross-shoreTideUnavailableunavailableOffshore swellSW 3.1 ft @ 4s

1 AMUnavailable

WindENE 0.3 ktoffshoreTideUnavailableunavailableOffshore swellSW 3.0 ft @ 4s

2 AMUnavailable

WindNNE 1.3 ktoffshoreTideUnavailableunavailableOffshore swellSW 2.8 ft @ 4s

3 AMUnavailable

WindNNE 0.7 ktoffshoreTideUnavailableunavailableOffshore swellSW 2.6 ft @ 4s

4 AMUnavailable

WindNE 1.9 ktoffshoreTideUnavailableunavailableOffshore swellSW 2.6 ft @ 5s

5 AMUnavailable

WindENE 2.1 ktoffshoreTideUnavailableunavailableOffshore swellSW 2.4 ft @ 6s

6 AMUnavailable

WindE 2.2 ktoffshoreTideUnavailableunavailableOffshore swellSW 2.4 ft @ 7s

7 AMUnavailable

WindE 1.5 ktcross-shoreTideUnavailableunavailableOffshore swellWSW 2.2 ft @ 7s

8 AMUnavailable

WindE 1.4 ktoffshoreTideUnavailableunavailableOffshore swellWSW 1.9 ft @ 7s

9 AMUnavailable

WindE 1.4 ktoffshoreTideUnavailableunavailableOffshore swellWSW 1.7 ft @ 7s

10 AMUnavailable

WindWSW 1.4 ktonshoreTideUnavailableunavailableOffshore swellWSW 1.7 ft @ 7s

11 AMUnavailable

WindW 3.1 ktonshoreTideUnavailableunavailableOffshore swellWSW 1.7 ft @ 7s

NoonUnavailable

WindW 2.7 ktonshoreTideUnavailableunavailableOffshore swellWSW 1.7 ft @ 7s

1 PMUnavailable

WindWNW 2.2 ktcross-shoreTideUnavailableunavailableOffshore swellWSW 1.8 ft @ 6s

2 PMUnavailable

WindW 5.3 ktcross-shoreTideUnavailableunavailableOffshore swellWSW 1.9 ft @ 6s

3 PMUnavailable

WindW 5.7 ktonshoreTideUnavailableunavailableOffshore swellWSW 2.0 ft @ 6s

4 PMUnavailable

WindW 6.5 ktonshoreTideUnavailableunavailableOffshore swellWSW 2.2 ft @ 7s

5 PMUnavailable

WindWSW 7.1 ktonshoreTideUnavailableunavailableOffshore swellWSW 2.4 ft @ 8s

6 PMUnavailable

WindW 6.1 ktonshoreTideUnavailableunavailableOffshore swellWSW 2.6 ft @ 9s

7 PMUnavailable

WindWNW 3 ktcross-shoreTideUnavailableunavailableOffshore swellWSW 2.7 ft @ 9s

8 PMUnavailable

WindN 3.2 ktoffshoreTideUnavailableunavailableOffshore swellWSW 2.8 ft @ 8s

9 PMUnavailable

WindN 3.7 ktoffshoreTideUnavailableunavailableOffshore swellWSW 2.9 ft @ 8s

10 PMUnavailable

WindN 2 ktcross-shoreTideUnavailableunavailableOffshore swellWSW 3.0 ft @ 8s

11 PMUnavailable

WindN 1.7 ktoffshoreTideUnavailableunavailableOffshore swellWSW 3.0 ft @ 8s

Tide

Local tide station unavailable

Tide predictions are unavailable for this period.

About this spot

Model-grid forecast requested at the mapped coordinate; reef, headland, and nearshore transformations are unresolved. Beach break. Renaca named-break page reports southwest swell and northeast offshore wind; orientation reviewed at 225 degrees.

Mapped spot coordinate: -32.9307, -71.5613.

Mainland South America · Valparaíso mainland southwest-facing Pacific beach coast · Ocean-facing bearing 225° · Location provenance

Model request point: Renaca (-32.9307, -71.5613). Model output times describe valid conditions; the provider does not expose the model run issue time in this response.

Forecast sources

Data coverage 2/6 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 C · CHILE · spot-level model point

Chile DIRECTEMAR/SHOA Marine Data
No current DIRECTEMAR forecast passed title, validity, zone, metre-range, and timestamp validation; no wave observation or tide is inferred from the forecast feed.UnavailableNo source time
The Buoy API
No current same-exposure Chilean wave observation with verified station identity, coordinates, units, and timestamp is connected.UnavailableNo source time
WorldTides API
No tide source with verified station identity, distance, datum, timezone, and current response is connected.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.