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Mamanuca Islands · Today

Wilkes Passage

When to go

2:00 PM–4:00 PM

Large waves · Low confidence

8.1–8.3 ft · Offshore waves · not face height

Wind: 8.5 kt · offshore

Cautions
  • Large waves are forecast. Choose conditions that suit your experience.
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.

  • 1:00 PM–3:00 PM · Pacific/Fiji

    Moderate offshore wind · up to 6.9 kt · reported gusts up to 18.1 kt

    Offshore waves: 8.3–8.3 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: 0 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 7.1 kt

Tide Unavailable

Wave, wind and tide details
Offshore model swellSSW 7.3 ft @ 12sValid 2026-09-23 12:00 · Pacific/FijiMarine grid -17.8750, 177.2084 · offshore model, not a local measurement
Offshore model sea8.4 ft @ 12sSignificant wave height including wind waves and swell; not breaking surfValid 2026-09-23 12:00 · Pacific/Fiji
Model windSE 7.1 ktoffshoreValid 2026-09-23 12:00 · Pacific/Fiji6.7 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
TimeWindTideOffshore swell
SE 9.7 ktoffshoreUnavailableunavailableSSW 7.2 ft @ 13s
SE 9.4 ktoffshoreUnavailableunavailableSSW 7.3 ft @ 13s
SE 8.7 ktoffshoreUnavailableunavailableSSW 7.4 ft @ 13s
SE 8.6 ktoffshoreUnavailableunavailableSSW 7.5 ft @ 12s
SE 8.6 ktoffshoreUnavailableunavailableSSW 7.5 ft @ 12s
SE 8.5 ktoffshoreUnavailableunavailableSSW 7.5 ft @ 12s
SE 9.1 ktoffshoreUnavailableunavailableSSW 7.6 ft @ 12s
SE 10.8 ktoffshoreUnavailableunavailableSSW 7.6 ft @ 12s
SE 10.8 ktoffshoreUnavailableunavailableSSW 7.5 ft @ 12s
ESE 10.7 ktoffshoreUnavailableunavailableSSW 7.5 ft @ 12s
ESE 8.4 ktoffshoreUnavailableunavailableSSW 7.5 ft @ 12s
SE 7.1 ktoffshoreUnavailableunavailableSSW 7.4 ft @ 12s
SE 7.1 ktoffshoreUnavailableunavailableSSW 7.3 ft @ 12s
ESE 6.9 ktoffshoreUnavailableunavailableSSW 7.2 ft @ 12s
E 5.3 ktoffshoreUnavailableunavailableSSW 7.2 ft @ 12s
ESE 5.3 ktoffshoreUnavailableunavailableSSW 7.0 ft @ 11s
SE 8.5 ktoffshoreUnavailableunavailableSSW 7.0 ft @ 11s
SE 11.2 ktoffshoreUnavailableunavailableSSW 6.8 ft @ 11s
SE 12 ktoffshoreUnavailableunavailableSSW 6.8 ft @ 11s
SE 11.4 ktoffshoreUnavailableunavailableSSW 6.6 ft @ 11s
SE 11.6 ktoffshoreUnavailableunavailableSSW 6.5 ft @ 11s
SE 11.2 ktoffshoreUnavailableunavailableSSW 6.4 ft @ 11s
SE 11.3 ktoffshoreUnavailableunavailableSSW 6.2 ft @ 11s
SE 11.5 ktoffshoreUnavailableunavailableSSW 6.2 ft @ 11s
Unavailable
WindSE 9.7 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.2 ft @ 13s
Unavailable
WindSE 9.4 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.3 ft @ 13s
Unavailable
WindSE 8.7 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.4 ft @ 13s
Unavailable
WindSE 8.6 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.5 ft @ 12s
Unavailable
WindSE 8.6 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.5 ft @ 12s
Unavailable
WindSE 8.5 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.5 ft @ 12s
Unavailable
WindSE 9.1 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.6 ft @ 12s
Unavailable
WindSE 10.8 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.6 ft @ 12s
Unavailable
WindSE 10.8 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.5 ft @ 12s
Unavailable
WindESE 10.7 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.5 ft @ 12s
Unavailable
WindESE 8.4 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.5 ft @ 12s
Unavailable
WindSE 7.1 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.4 ft @ 12s
Unavailable
WindSE 7.1 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.3 ft @ 12s
Unavailable
WindESE 6.9 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.2 ft @ 12s
Unavailable
WindE 5.3 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.2 ft @ 12s
Unavailable
WindESE 5.3 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.0 ft @ 11s
Unavailable
WindSE 8.5 ktoffshoreTideUnavailableunavailableOffshore swellSSW 7.0 ft @ 11s
Unavailable
WindSE 11.2 ktoffshoreTideUnavailableunavailableOffshore swellSSW 6.8 ft @ 11s
Unavailable
WindSE 12 ktoffshoreTideUnavailableunavailableOffshore swellSSW 6.8 ft @ 11s
Unavailable
WindSE 11.4 ktoffshoreTideUnavailableunavailableOffshore swellSSW 6.6 ft @ 11s
Unavailable
WindSE 11.6 ktoffshoreTideUnavailableunavailableOffshore swellSSW 6.5 ft @ 11s
Unavailable
WindSE 11.2 ktoffshoreTideUnavailableunavailableOffshore swellSSW 6.4 ft @ 11s
Unavailable
WindSE 11.3 ktoffshoreTideUnavailableunavailableOffshore swellSSW 6.2 ft @ 11s
Unavailable
WindSE 11.5 ktoffshoreTideUnavailableunavailableOffshore swellSSW 6.2 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 available    Current
  • Open-Meteo Weather API
    1 of 1 configured model points available    Current
  • 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 fallback    Not applicableNo source time
  • Surfline public spot pages
    Break-specific comparison, cams, and metadata    Not 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.