Captain Cook Monument

Good

Kealakekua Bay, Big Island, HI

Updated 1h 2m ago·Data from Storm Glass·refreshes every 2h

Estimates only. Not safety advice. Verify locally before entering the water. Terms & Conditions

AI Spot Summary

Kealakekua Bay is looking glassy and inviting today, with the cliffs providing that classic shelter that makes this spot a sanctuary for spinner dolphins and coral alike. The NNE offshore breeze is keeping the surface calm, though the rising tide is currently creating a bit of a sluggish flow near the monument. The estimated visibility today is 50-60 ft, making for a crisp look at the reef below.

Wind

E 6 mph

Cross-Shore

24-hour wind Now · 7:02 PM

12a

12p

12a

Wave Height

Surf

1–2 ft

Estimated breaking wave height

Swell

HeightPeriodDir2.4 ft13sS 190°1.1 ft18sS 191°1.0 ft4sNW 324°

Visibility

~50-60ft

Estimate based on swell, runoff and forecast clarity at site

Rainfall

Minimal impact

0.06in / 24h

0.13" in last 72 hours

Temperature

81°

Water

77°

Air

47%

Cloud Cover

Tide · HST

2.2ft

at 7:00 PM · hover to scrub

State: Rising

Next high at 7:55 PM

0.1ft

1.0ft

0.5ft

2.3ft

12a

12p

12a

Low 0.1 ft @ 2:33 AMHigh 1.0 ft @ 8:09 AM

Forecast

Best Window Ahead

Pro finds the best day and time to dive over the next 10 days — AM/PM forecasts for every site, plus a plain-English call on when to go.

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3 of 10 days · AM / PM · Pro

Fri

Jun 19

Morning

Good

Afternoon

Fair

Today

Jun 20

Morning

Good

Afternoon

Good

Sun

Jun 21

Morning

Good

Afternoon

Fair

See all 10 daysAM/PM conditions for the full window — plan the best day to get in.

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Site Notes

Access by kayak, boat, or 2-mile hike. Bay is sheltered by tall cliffs on the south side. West-facing — can be affected by large west swells. Best on calm days. Marine life sanctuary — no collecting.