Mamanuca Islands · Thursday, Sep 24

Wilkes Passage

Updated Wed, Sep 23, 12:10 PM GMT+12

When to go

12:00 PM–2:00 PM

Strong wind — difficult conditions · Low confidence

6.2–6.2 ft · Offshore waves · not face height

Strong wind: 12.2 kt · offshore

Cautions

Strong wind or gusts up to 21.4 kt can make the session difficult; being first in the list does not make conditions good.
Strong wind or gusts up to 21.0 kt can make the session difficult; being first in the list does not make conditions good.
Strong wind or gusts up to 22.4 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.

10:00 AM–12:00 PM · Pacific/Fiji
Strong wind · up to 11.5 kt · reported gusts up to 26.2 kt
Caution: This is the best available wind comparison, not a favorable-wind label. Strong wind remains in the selected evidence.
Offshore waves: 6.2–6.4 ft across the period. Surf height unavailable. Tide data unavailable.
Wind source time: Sep 23, 11:30 AM GMT+12. 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 5.4 km from the mapped spot. Provider grid resolution is not established for this response.
Reference model hour: 20 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 SE 14.1 kt

Tide Unavailable

Wave, wind and tide details

Offshore model swellSSW 5.0 ft @ 10sValid 2026-09-24 08:00 · Pacific/FijiMarine grid -17.8750, 177.2084 · offshore model, not a local measurement

Offshore model sea6.6 ft @ 9.3sSignificant wave height including wind waves and swell; not breaking surfValid 2026-09-24 08:00 · Pacific/Fiji

Model windSE 14.1 ktoffshoreValid 2026-09-24 08:00 · Pacific/Fiji13.7 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 Wilkes Passage
Time	Wind	Tide	Offshore swell
12 AM	SE 10.9 ktoffshore	Unavailableunavailable	SSW 6.0 ft @ 11s
1 AM	SE 10.3 ktoffshore	Unavailableunavailable	SSW 5.9 ft @ 11s
2 AM	SE 11.2 ktoffshore	Unavailableunavailable	SSW 5.8 ft @ 10s
3 AM	SE 12 ktoffshore	Unavailableunavailable	SSW 5.7 ft @ 10s
4 AM	SE 11.9 ktoffshore	Unavailableunavailable	SSW 5.6 ft @ 10s
5 AM	SE 12.5 ktoffshore	Unavailableunavailable	SSW 5.4 ft @ 10s
6 AM	SE 12.7 ktoffshore	Unavailableunavailable	SSW 5.2 ft @ 10s
7 AM	SE 12.7 ktoffshore	Unavailableunavailable	SSW 5.1 ft @ 10s
8 AM	SE 14.1 ktoffshore	Unavailableunavailable	SSW 5.0 ft @ 10s
9 AM	SE 12.8 ktoffshore	Unavailableunavailable	SSW 4.9 ft @ 10s
10 AM	SE 11.5 ktoffshore	Unavailableunavailable	SSW 4.8 ft @ 10s
11 AM	SE 10.8 ktoffshore	Unavailableunavailable	SSW 4.7 ft @ 10s
Noon	SE 8.9 ktoffshore	Unavailableunavailable	SSW 4.6 ft @ 10s
1 PM	SE 11.6 ktoffshore	Unavailableunavailable	SSW 4.4 ft @ 10s
2 PM	SSE 12.2 ktoffshore	Unavailableunavailable	SSW 4.2 ft @ 10s
3 PM	SE 13.1 ktoffshore	Unavailableunavailable	SSW 4.0 ft @ 10s
4 PM	SE 14.2 ktoffshore	Unavailableunavailable	SSW 3.9 ft @ 10s
5 PM	SE 14.5 ktoffshore	Unavailableunavailable	SSW 3.7 ft @ 10s
6 PM	SSE 13.8 ktoffshore	Unavailableunavailable	SSW 3.6 ft @ 10s
7 PM	SE 13.4 ktoffshore	Unavailableunavailable	SSW 3.4 ft @ 9s
8 PM	SE 12.2 ktoffshore	Unavailableunavailable	SSW 3.3 ft @ 9s
9 PM	SE 12.8 ktoffshore	Unavailableunavailable	SSW 3.1 ft @ 9s
10 PM	SE 14.9 ktoffshore	Unavailableunavailable	SSW 3.3 ft @ 10s
11 PM	SE 15.9 ktoffshore	Unavailableunavailable	SSW 3.6 ft @ 11s

12 AMUnavailable

WindSE 10.9 ktoffshoreTideUnavailableunavailableOffshore swellSSW 6.0 ft @ 11s

1 AMUnavailable

WindSE 10.3 ktoffshoreTideUnavailableunavailableOffshore swellSSW 5.9 ft @ 11s

2 AMUnavailable

WindSE 11.2 ktoffshoreTideUnavailableunavailableOffshore swellSSW 5.8 ft @ 10s

3 AMUnavailable

WindSE 12 ktoffshoreTideUnavailableunavailableOffshore swellSSW 5.7 ft @ 10s

4 AMUnavailable

WindSE 11.9 ktoffshoreTideUnavailableunavailableOffshore swellSSW 5.6 ft @ 10s

5 AMUnavailable

WindSE 12.5 ktoffshoreTideUnavailableunavailableOffshore swellSSW 5.4 ft @ 10s

6 AMUnavailable

WindSE 12.7 ktoffshoreTideUnavailableunavailableOffshore swellSSW 5.2 ft @ 10s

7 AMUnavailable

WindSE 12.7 ktoffshoreTideUnavailableunavailableOffshore swellSSW 5.1 ft @ 10s

8 AMUnavailable

WindSE 14.1 ktoffshoreTideUnavailableunavailableOffshore swellSSW 5.0 ft @ 10s

9 AMUnavailable

WindSE 12.8 ktoffshoreTideUnavailableunavailableOffshore swellSSW 4.9 ft @ 10s

10 AMUnavailable

WindSE 11.5 ktoffshoreTideUnavailableunavailableOffshore swellSSW 4.8 ft @ 10s

11 AMUnavailable

WindSE 10.8 ktoffshoreTideUnavailableunavailableOffshore swellSSW 4.7 ft @ 10s

NoonUnavailable

WindSE 8.9 ktoffshoreTideUnavailableunavailableOffshore swellSSW 4.6 ft @ 10s

1 PMUnavailable

WindSE 11.6 ktoffshoreTideUnavailableunavailableOffshore swellSSW 4.4 ft @ 10s

2 PMUnavailable

WindSSE 12.2 ktoffshoreTideUnavailableunavailableOffshore swellSSW 4.2 ft @ 10s

3 PMUnavailable

WindSE 13.1 ktoffshoreTideUnavailableunavailableOffshore swellSSW 4.0 ft @ 10s

4 PMUnavailable

WindSE 14.2 ktoffshoreTideUnavailableunavailableOffshore swellSSW 3.9 ft @ 10s

5 PMUnavailable

WindSE 14.5 ktoffshoreTideUnavailableunavailableOffshore swellSSW 3.7 ft @ 10s

6 PMUnavailable

WindSSE 13.8 ktoffshoreTideUnavailableunavailableOffshore swellSSW 3.6 ft @ 10s

7 PMUnavailable

WindSE 13.4 ktoffshoreTideUnavailableunavailableOffshore swellSSW 3.4 ft @ 9s

8 PMUnavailable

WindSE 12.2 ktoffshoreTideUnavailableunavailableOffshore swellSSW 3.3 ft @ 9s

9 PMUnavailable

WindSE 12.8 ktoffshoreTideUnavailableunavailableOffshore swellSSW 3.1 ft @ 9s

10 PMUnavailable

WindSE 14.9 ktoffshoreTideUnavailableunavailableOffshore swellSSW 3.3 ft @ 10s

11 PMUnavailable

WindSE 15.9 ktoffshoreTideUnavailableunavailableOffshore swellSSW 3.6 ft @ 11s

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. Reef break. Mapped coordinate and 297-degree exposure agree with northwest reef geography; generated beginner/beach classification rejected.

Mapped spot coordinate: -17.84138889, 177.17111.

Namotu / Mamanuca Islands (off-island barrier reef pass) · Northwest end of the barrier reef across the channel from Namotu · Ocean-facing bearing 297° · Location provenance

Model request point: Wilkes Passage (-17.84138889, 177.17111). 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 D · PACIFIC_MODEL · spot-level model point

National or regional meteorological marine bulletin
No current Fiji Met marine bulletin passed issuer, issue-time, validity, Fiji-waters scope, knots, sea-state, and content validation.UnavailableNo source time
The Buoy API
The nearby Sofar buoy SPOT-31136C was stale at audit time; no wave observation is exposed unless its timestamp, units, station identity, distance, and reef exposure are current.UnavailableNo source time
WorldTides API
Fiji Met publishes Port Denarau annual tide-calendar PDFs at https://www.met.gov.fj/climate-services/port-denarau-tide-prediction/, but no stable machine-readable response schema is published; station-to-reef distances, the calendar's Local Standard Time convention, and its stated prediction datum must be exposed before using it as a Mamanuca proxy.UnavailableNo source time
Open-Meteo Marine API
1 of 1 configured model points availableCurrentSep 23, 11:30 AM GMT+12
Open-Meteo Weather API
1 of 1 configured model points availableCurrentSep 23, 11:30 AM GMT+12
Copernicus Marine Global Ocean Waves
Copernicus Marine requires an account/toolbox workflow and no independently connected Fiji 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.