South Pacific · Wednesday, Sep 23

Dominical

Updated Tue, Sep 22, 6:30 PM CST

When to go

6:00 AM–8:00 AM

Looks good · Low confidence

3.2–3.2 ft · Offshore waves · not face height

Wind: 2.4 kt · onshore

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.

6:00 AM–8:00 AM · America/Costa_Rica
Light wind · up to 2.4 kt · reported gusts up to 7.8 kt
Offshore waves: 3.2–3.2 ft across the period. Surf height unavailable. Tide data available; check the local tide response.
Wind source time: Sep 22, 5:45 PM CST. 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 4.5 km from the mapped spot. Provider grid resolution is not established for this response.
Reference model hour: 13 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 SSW 2.4 kt

Tide 4 ft rising

Wave, wind and tide details

Offshore model swellSW 2.0 ft @ 13sValid 2026-09-23 08:00 · America/Costa_RicaMarine grid 9.2083, -83.8750 · offshore model, not a local measurement

Offshore model sea3.2 ft @ 10.3sSignificant wave height including wind waves and swell; not breaking surfValid 2026-09-23 08:00 · America/Costa_Rica

Model windSSW 2.4 ktonshoreValid 2026-09-23 08:00 · America/Costa_Rica2.2 kt onshore component

Tide4 ftrisingMIO-CIMAR Uvita station 36 · 13.3 km from Dominical · predicted height relative to MIO mean-low-tide referenceRetrieved Sep 22, 6:33 PM CST · provider issue time unavailable33% of adjacent local low–high range · descriptive, not a safety rating

MIO-CIMAR South Pacific regional model

Modeled regional significant wave height 1.56 m; modeled maximum 2.07 m; period 15.8 s; direction from 220°.

2026-09-23T06:00:00.000Z (America/Costa_Rica: 2026-09-23 00:00)Official MIO-CIMAR regional modeled ocean-wave conditions for South Pacific; API heights are metres, the API direction is a propagation-toward vector converted here to a from-bearing, and these values are neither a station observation nor breaking surf. The provider exposes no issue timestamp; 2026-09-23T00:33:47.092Z is the response retrieval time.Measured maximum wave: 6.8 ftRetrieved Sep 22, 6:33 PM CST

MIO-CIMAR South Pacific regional model

Modeled regional significant wave height 1.51 m; modeled maximum 2.01 m; period 15.4 s; direction from 223°. Oleaje promedio. Precaución para bañistas. Generación de corrientes de resaca moderadas.

2026-09-23T12:00:00.000Z (America/Costa_Rica: 2026-09-23 06:00)Official MIO-CIMAR regional modeled ocean-wave conditions for South Pacific; API heights are metres, the API direction is a propagation-toward vector converted here to a from-bearing, and these values are neither a station observation nor breaking surf. The provider exposes no issue timestamp; 2026-09-23T00:33:47.092Z is the response retrieval time.Measured maximum wave: 6.6 ftRetrieved Sep 22, 6:33 PM CST

MIO-CIMAR South Pacific regional model

Modeled regional significant wave height 1.34 m; modeled maximum 1.78 m; period 15.4 s; direction from 226°. Oleaje promedio. Precaución para bañistas. Generación de corrientes de resaca moderadas.

2026-09-23T18:00:00.000Z (America/Costa_Rica: 2026-09-23 12:00)Official MIO-CIMAR regional modeled ocean-wave conditions for South Pacific; API heights are metres, the API direction is a propagation-toward vector converted here to a from-bearing, and these values are neither a station observation nor breaking surf. The provider exposes no issue timestamp; 2026-09-23T00:33:47.092Z is the response retrieval time.Measured maximum wave: 5.8 ftRetrieved Sep 22, 6:33 PM CST

MIO-CIMAR South Pacific regional model

Modeled regional significant wave height 1.23 m; modeled maximum 1.64 m; period 15.2 s; direction from 228°.

2026-09-24T00:00:00.000Z (America/Costa_Rica: 2026-09-23 18:00)Official MIO-CIMAR regional modeled ocean-wave conditions for South Pacific; API heights are metres, the API direction is a propagation-toward vector converted here to a from-bearing, and these values are neither a station observation nor breaking surf. The provider exposes no issue timestamp; 2026-09-23T00:33:47.092Z is the response retrieval time.Measured maximum wave: 5.4 ftRetrieved Sep 22, 6:33 PM CST

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 Dominical
Time	Wind	Tide	Offshore swell
12 AM	SSW 1 ktonshore	7 ftfalling	SW 1.9 ft @ 13s
1 AM	SSW 1.6 ktonshore	6 ftfalling	SW 1.9 ft @ 13s
2 AM	SSW 0.8 ktonshore	5.5 ftfalling	SW 1.9 ft @ 12s
3 AM	SW 1.9 ktonshore	4.5 ftfalling	SW 1.9 ft @ 12s
4 AM	SSW 1.3 ktonshore	4 ftfalling	SW 1.9 ft @ 12s
5 AM	SW 0.1 ktonshore	3 ftfalling	SW 2.0 ft @ 13s
6 AM	S 0.8 ktonshore	2.5 ftrising	SW 2.0 ft @ 13s
7 AM	SSW 1.6 ktonshore	3 ftrising	SW 2.0 ft @ 13s
8 AM	SSW 2.4 ktonshore	4 ftrising	SW 2.0 ft @ 13s
9 AM	SSW 4.1 ktonshore	4.5 ftrising	SW 2.0 ft @ 13s
10 AM	SSW 4.7 ktonshore	5.5 ftrising	SW 2.0 ft @ 13s
11 AM	SSW 6.3 ktonshore	6.5 ftrising	SW 2.0 ft @ 13s
Noon	SSW 5.3 ktonshore	7 ftnear high	SW 2.0 ft @ 13s
1 PM	SW 4 ktonshore	6.5 ftfalling	SW 2.0 ft @ 13s
2 PM	SW 4.9 ktonshore	5.5 ftfalling	SW 2.0 ft @ 13s
3 PM	SW 4.2 ktonshore	4.5 ftfalling	SW 2.0 ft @ 13s
4 PM	SW 2.8 ktonshore	4 ftfalling	SW 2.0 ft @ 13s
5 PM	SW 1.2 ktonshore	3 ftfalling	SW 1.9 ft @ 13s
6 PM	WSW 0.4 ktonshore	2 ftnear low	SW 1.9 ft @ 12s
7 PM	W 0.3 ktonshore	2.5 ftrising	SW 1.9 ft @ 12s
8 PM	SW 0.1 ktonshore	3 ftrising	SW 2.0 ft @ 12s
9 PM	WSW 0.4 ktonshore	4 ftrising	SW 2.0 ft @ 12s
10 PM	N 0.3 ktoffshore	5 ftrising	SW 2.0 ft @ 12s
11 PM	E 0.4 ktoffshore	6 ftrising	SW 2.0 ft @ 12s

12 AMUnavailable

WindSSW 1 ktonshoreTide7 ftfallingOffshore swellSW 1.9 ft @ 13s

1 AMUnavailable

WindSSW 1.6 ktonshoreTide6 ftfallingOffshore swellSW 1.9 ft @ 13s

2 AMUnavailable

WindSSW 0.8 ktonshoreTide5.5 ftfallingOffshore swellSW 1.9 ft @ 12s

3 AMUnavailable

WindSW 1.9 ktonshoreTide4.5 ftfallingOffshore swellSW 1.9 ft @ 12s

4 AMUnavailable

WindSSW 1.3 ktonshoreTide4 ftfallingOffshore swellSW 1.9 ft @ 12s

5 AMUnavailable

WindSW 0.1 ktonshoreTide3 ftfallingOffshore swellSW 2.0 ft @ 13s

6 AMUnavailable

WindS 0.8 ktonshoreTide2.5 ftrisingOffshore swellSW 2.0 ft @ 13s

7 AMUnavailable

WindSSW 1.6 ktonshoreTide3 ftrisingOffshore swellSW 2.0 ft @ 13s

8 AMUnavailable

WindSSW 2.4 ktonshoreTide4 ftrisingOffshore swellSW 2.0 ft @ 13s

9 AMUnavailable

WindSSW 4.1 ktonshoreTide4.5 ftrisingOffshore swellSW 2.0 ft @ 13s

10 AMUnavailable

WindSSW 4.7 ktonshoreTide5.5 ftrisingOffshore swellSW 2.0 ft @ 13s

11 AMUnavailable

WindSSW 6.3 ktonshoreTide6.5 ftrisingOffshore swellSW 2.0 ft @ 13s

NoonUnavailable

WindSSW 5.3 ktonshoreTide7 ftnear highOffshore swellSW 2.0 ft @ 13s

1 PMUnavailable

WindSW 4 ktonshoreTide6.5 ftfallingOffshore swellSW 2.0 ft @ 13s

2 PMUnavailable

WindSW 4.9 ktonshoreTide5.5 ftfallingOffshore swellSW 2.0 ft @ 13s

3 PMUnavailable

WindSW 4.2 ktonshoreTide4.5 ftfallingOffshore swellSW 2.0 ft @ 13s

4 PMUnavailable

WindSW 2.8 ktonshoreTide4 ftfallingOffshore swellSW 2.0 ft @ 13s

5 PMUnavailable

WindSW 1.2 ktonshoreTide3 ftfallingOffshore swellSW 1.9 ft @ 13s

6 PMUnavailable

WindWSW 0.4 ktonshoreTide2 ftnear lowOffshore swellSW 1.9 ft @ 12s

7 PMUnavailable

WindW 0.3 ktonshoreTide2.5 ftrisingOffshore swellSW 1.9 ft @ 12s

8 PMUnavailable

WindSW 0.1 ktonshoreTide3 ftrisingOffshore swellSW 2.0 ft @ 12s

9 PMUnavailable

WindWSW 0.4 ktonshoreTide4 ftrisingOffshore swellSW 2.0 ft @ 12s

10 PMUnavailable

WindN 0.3 ktoffshoreTide5 ftrisingOffshore swellSW 2.0 ft @ 12s

11 PMUnavailable

WindE 0.4 ktoffshoreTide6 ftrisingOffshore swellSW 2.0 ft @ 12s

Tide

MIO-CIMAR Uvita station 36 · 13.3 km from Dominical · MIO mean-low-tide reference

Interpolated tide height Recommended window

About this spot

Model-grid forecast requested at the mapped coordinate; reef, headland, and nearshore transformations are unresolved. Beach break. Published named-break coordinate. The break lies at the ICT Central/South Pacific boundary and is assigned to MIO area 15 because it is south of the Río Barú mouth; no official MIO polygon is published.

Mapped spot coordinate: 9.23, -83.84.

Mainland Costa Rica · South Pacific coast immediately south of the Río Barú mouth · Ocean-facing bearing 225° · Location provenance

Model request point: Dominical (9.23, -83.84). Model output times describe valid conditions; the provider does not expose the model run issue time in this response.

Forecast sources

Data coverage 4/7 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

MIO-CIMAR South Pacific regional model
MIO-CIMAR South Pacific regional model; Official MIO-CIMAR regional modeled ocean-wave conditions for South Pacific; API heights are metres, the API direction is a propagation-toward vector converted here to a from-bearing, and these values are neither a station observation nor breaking surf. The provider exposes no issue timestamp; 2026-09-23T00:33:47.092Z is the response retrieval time.CurrentSep 22, 6:33 PM CST
The Buoy API
No current same-exposure wave observation with verified identity, coordinates, units, and timestamp is connected; MIO-CIMAR forecasts are not relabeled as observations.UnavailableNo source time
MIO-CIMAR Costa Rica tide predictions
MIO-CIMAR Uvita station 36 · 13.3 km from Dominical; predicted high/low events above MIO mean-low-tide reference, converted to feet. Timestamp is retrieval time; provider issue time is not supplied.CurrentSep 22, 6:33 PM CST
WorldTides API
Official MIO-CIMAR station predictions are used; heights are referenced to the provider-described mean of low tides from at least a 20-year record.UnavailableNo source time
Open-Meteo Marine API
1 of 1 configured model points availableCurrentSep 22, 5:45 PM CST
Open-Meteo Weather API
1 of 1 configured model points availableCurrentSep 22, 5:45 PM CST
Copernicus Marine Global Ocean Waves
No independently authenticated Copernicus product, run, grid, and current response is connected; MIO-CIMAR and Open-Meteo remain separately labeled model evidence.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.