Waterlands

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BonefishPeak season

Bay · Hawaii

Mamalu Bay

20.62°N · 156.15°W · Bay · Alenuihaha Channel

Species here · tap to switch

LOADING MAP

Best score today · 3 AM · Giant trevally

44/100Fair
Now
3012 PM HST
Best window
12 PM-12 AMSteady pressure
Tide now
High2.0 ft

Data from: NOAA CO-OPS + NDBC + ECMWF + Open-Meteo Marine · Waterlands engine

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24-hour conditions · rolling from now

Conditions · 12 PM · now

Time12PNOW
Score30Fair
Tide2.0 ftHigh
Current0.2 knmodeled · toward N
Wind27 kn Egusts 34 · steady
Sea stateRough6.0 ft · 8 s
Air temp83°Hot
WeatherClear14% cloud
Water81°FObserved

Current regulations

What you can keep here today

IN EFFECT NOW

No rule for Bonefish is on file here yet, so its status is unknown, not closed. Confirm limits with DLNR DAR before you keep a fish.

Source: DLNR DAR · Sync unavailable, last verified Sep 13, 2026

Seasonality · 52-week view · this week ringed

When Bonefish is best here

Peak season for Bonefish · 1 more week at peak

Bonefish season by week of the year. Peak season for Bonefish · 1 more week at peak.
  • Peak
  • Shoulder
  • Off
  • This week

Bonefish in Hawaii

Spot profile

Mamalu Bay

Depth
25-110 ftDrop-off
Structure
Bay · Outer · ExposedBay · drop-off
Season
Peak seasonBonefish

NOAA NCEI DEM, sampled Sep 14 on a 3.4 m grid. Depths are feet below NAVD 88, not chart datum (MLLW), so they can differ from a chart by a few feet. Not for navigation.

About this spot

Fishing Mamalu Bay

Mamalu Bay is a bay in Alenuihaha Channel, Hawaii. Depth is 25-110 ft, with a drop-off. Its profile reads bay, outer water and exposed.

Waterlands scores bonefish and giant trevally here. It is peak season now for bonefish, and shoulder season for giant trevally. Bonefish peak from May through September. Giant trevally peak from May through July.

Tackle & technique

Bonefish
Bonefish push onto shallow sand and grass flats with the rising tide to root for shrimp, crabs and clams, often in water under 2 feet deep, and fall back to channel edges and deeper flats as the tide drops. Most fish are sight cast to with a small shrimp or crab fly, a light jig or a live shrimp, which takes bright sun, light wind and a quiet approach. They are catch and release only in Florida, and in Hawaii many anglers also fish bait from shore along sand channels and reef edges.
Giant trevally
Ulua hunt reef edges, rocky points, harbor mouths and sand channels from the shoreline out to deep ledges. Shore anglers slide an eel, tako or crab down a heavy anchored line and fish through the night, while casters throw poppers and plugs over reef edges at dawn and dusk. The first run heads for the rocks, so use heavy line and a tight drag.

Nearby spots

Other spots within an easy run

  • Kou

    Cape · 0.8 mi

    30
    Top: BonefishPeak season
    • Bonefish 30
    • Giant trevally 30

    27 kt EL 12:29 AM · 0.3 ftH 12:09 PM · 2.1 ft

  • Waiu Bay

    Bay · 0.9 mi

    30
    Top: BonefishPeak season
    • Bonefish 30
    • Giant trevally 30

    27 kt EL 12:29 AM · 0.3 ftH 12:09 PM · 2.1 ft

  • Kamanawa Point

    Cape · 1.1 mi

    30
    Top: BonefishPeak season
    • Bonefish 30
    • Giant trevally 30

    27 kt EL 12:29 AM · 0.3 ftH 12:09 PM · 2.1 ft

  • Kalama

    Bay · 1.2 mi

    30
    Top: BonefishPeak season
    • Bonefish 30
    • Giant trevally 30

    27 kt EL 12:29 AM · 0.3 ftH 12:09 PM · 2.1 ft

Scores and forecasts are for planning only and can be wrong. Conditions on the water change fast; check the marine forecast before you go. Regulations change during the season, so confirm limits and closures with DLNR DAR before you keep a fish.