All spots

Shark's Cove — dive & snorkel conditions

Oʻahu, Hawaii, US · 21.654521, -158.065133 · times in Pacific/Honolulu

As of . Next update after .

Now

Rating
no-go (score 19/100, confidence 0.52)
Visibility
15 ft (4.6 m), satellite estimate
Swell
3.3 ft at 11 s from 312°
Wind
15 kt, gusts 15 kt, from 74°
Tide
rising, 0.57 ft above MLLW
Water temperature
26.5 °C
Why
Not today. No major hazards detected.

Forecast (3-hour periods)

2026-10-06
Time (local)RatingScore /100VisibilitySwellWindTide (MLLW)ConfidenceWhy
–08:00no-go1715 ft3.3 ft @ 11 s from 312°14 kt (gust 14 kt) from 76°rising 0.57 ft0.52Hard pass. No major hazards detected.
–11:00good5038 ft3.3 ft @ 11 s from 312°13 kt (gust 13 kt) from 73°rising 1.57 ft0.52Clean water, 39-ish feet — but you can work around it. No major hazards detected.
–14:00fair2639 ft3.4 ft @ 20 s from 312°14 kt (gust 14 kt) from 62°high 2.35 ft0.5239 ft of visibility — making this one a stretch. Stiff ENE wind, 14 kt. No major hazards detected.
–17:00no-go026 ft3.5 ft @ 18 s from 312°14 kt (gust 13 kt) from 61°falling 1.52 ft0.52Decent 26-ft viz. Not today. No major hazards detected.
–20:00no-go011 ft3.7 ft @ 18 s from 312°11 kt (gust 11 kt) from 73°low 0.7 ft0.52You'll see your hand and not much else, 10-ish. Not today. No major hazards detected.
–23:00no-go612 ft3.9 ft @ 17 s from 312°10 kt (gust 10 kt) from 89°rising 1.03 ft0.52You'll see your hand and not much else, 13-ish. Not today. No major hazards detected.
–02:00no-go011 ft4.1 ft @ 16 s from 312°8 kt (gust 8 kt) from 102°high 1.56 ft0.52Hard pass. No major hazards detected.
2026-10-07
Time (local)RatingScore /100VisibilitySwellWindTide (MLLW)ConfidenceWhy
–05:00no-go09 ft4.3 ft @ 16 s from 312°7 kt (gust 6 kt) from 130°falling 0.96 ft0.5210 ft of soup. Stay home. No major hazards detected.
–08:00no-go010 ft4.5 ft @ 15 s from 312°5 kt (gust 5 kt) from 159°low 0.49 ft0.5210 ft of soup. Stay home. 4.5 ft pushing in. No major hazards detected.
–11:00fair2731 ft4.6 ft @ 15 s from 312°4 kt (gust 5 kt) from 166°rising 1.36 ft0.5230-ft viz. Only worth it if you really know this spot. 4.6-ft swell out of NW. No major hazards detected.
–14:00fair3035 ft4.7 ft @ 15 s from 312°6 kt (gust 6 kt) from 215°high 2.22 ft0.52Clear enough — about 36 ft — borderline. North swell wrapping into the bay at 4.7 ft. No major hazards detected.
–17:00no-go023 ft4.8 ft @ 14 s from 312°10 kt (gust 11 kt) from 212°falling 1.49 ft0.52Decent 23-ft viz. Not today. North swell wrapping into the bay at 4.8 ft. No major hazards detected.
–20:00no-go09 ft4.7 ft @ 13 s from 312°11 kt (gust 12 kt) from 204°falling 0.6 ft0.52You'll see your hand and not much else, 10-ish. Not today. North swell wrapping into the bay at 4.7 ft. No major hazards detected.
–23:00no-go011 ft4.7 ft @ 13 s from 312°5 kt (gust 6 kt) from 150°rising 0.95 ft0.52Not today. No major hazards detected.
–02:00no-go012 ft4.6 ft @ 13 s from 312°3 kt (gust 4 kt) from 147°rising 1.66 ft0.52Green and hazy at 13 ft. Try tomorrow. 4.6-ft swell out of NW. No major hazards detected.
2026-10-08
Time (local)RatingScore /100VisibilitySwellWindTide (MLLW)ConfidenceWhy
–05:00no-go09 ft4.5 ft @ 13 s from 312°5 kt (gust 7 kt) from 181°falling 1.31 ft0.5210 ft of soup. Stay home. Recent rainfall suggests possible dirty water even if surface conditions look calm. Drivers: light-moderate rain last 3h (2mm); near drainage outlet; falling tide can flush dirty water from nearshore.
–08:00no-go011 ft4.4 ft @ 12 s from 312°13 kt (gust 14 kt) from 185°low 0.59 ft0.5210 ft of soup. Stay home. No major hazards detected.
–11:00no-go1935 ft4.2 ft @ 12 s from 312°16 kt (gust 18 kt) from 203°rising 1.19 ft0.52Hard pass. Choppy surface conditions.
–14:00fair2441 ft4 ft @ 12 s from 312°16 kt (gust 18 kt) from 203°rising 2 ft0.52Marginal. You'd want to know this spot before going. Choppy surface conditions.
–17:00no-go028 ft3.9 ft @ 12 s from 312°16 kt (gust 18 kt) from 203°falling 1.45 ft0.52Decent 26-ft viz. Try tomorrow. Choppy surface conditions.
–20:00no-go011 ft3.9 ft @ 12 s from 312°16 kt (gust 18 kt) from 203°falling 0.52 ft0.52Hard pass. Choppy surface conditions.
–23:00no-go013 ft4.1 ft @ 12 s from 312°16 kt (gust 18 kt) from 203°rising 0.82 ft0.52Not today. Choppy surface conditions.
–02:00no-go013 ft4.4 ft @ 11 s from 312°15 kt (gust 16 kt) from 215°rising 1.68 ft0.52Not today. No major hazards detected.
2026-10-09
Time (local)RatingScore /100VisibilitySwellWindTide (MLLW)ConfidenceWhy
–05:00no-go010 ft4.6 ft @ 11 s from 312°14 kt (gust 15 kt) from 221°falling 1.68 ft0.5210 ft of soup. Stay home. 4.6-ft swell out of NW. No major hazards detected.
–08:00no-go010 ft4.7 ft @ 11 s from 312°14 kt (gust 15 kt) from 221°falling 0.92 ft0.52Green and hazy at 10 ft. Try tomorrow. 4.7-ft swell out of NW. No major hazards detected.
–11:00no-go1733 ft4.9 ft @ 11 s from 312°14 kt (gust 15 kt) from 221°rising 1.08 ft0.52Clean water, 33-ish feet. Try tomorrow. No major hazards detected.
–14:00fair2137 ft5.1 ft @ 11 s from 312°14 kt (gust 15 kt) from 221°rising 1.79 ft0.52Marginal. You'd want to know this spot before going. 5.1 ft is moving real water. Rougher swell than usual.
–17:00no-go025 ft5.4 ft @ 11 s from 312°14 kt (gust 15 kt) from 221°falling 1.39 ft0.5226-ish ft of visibility. Try tomorrow. Rougher swell than usual.
–20:00no-go09 ft5.5 ft @ 11 s from 312°14 kt (gust 15 kt) from 221°falling 0.46 ft0.5210 ft of soup. Stay home. Solid north swell filling in — 5.5 ft of it. Rougher swell than usual.
–23:00no-go011 ft5.7 ft @ 11 s from 312°14 kt (gust 15 kt) from 221°rising 0.64 ft0.52Not today. Rougher swell than usual.
–02:00no-go011 ft5.9 ft @ 11 s from 317°9 kt (gust 9 kt) from 81°rising 1.6 ft0.52Not today. Rougher swell than usual.
2026-10-10
Time (local)RatingScore /100VisibilitySwellWindTide (MLLW)ConfidenceWhy
–05:00no-go08 ft6 ft @ 15 s from 322°6 kt (gust 6 kt) from 62°falling 2.02 ft0.527 ft of soup. Stay home. Rougher swell than usual.
–08:00no-go08 ft6 ft @ 11 s from 322°6 kt (gust 6 kt) from 62°falling 1.26 ft0.52Not today. Rougher swell than usual.
–11:00fair3030 ft5.9 ft @ 11 s from 322°6 kt (gust 6 kt) from 62°rising 1.03 ft0.52Clear enough — about 30 ft — borderline. Rougher swell than usual.
–14:00good4135 ft5.6 ft @ 11 s from 322°6 kt (gust 6 kt) from 62°rising 1.62 ft0.52Clear enough — about 36 ft — that's the catch, but it's still go-able. 5.6 ft is moving real water. Rougher swell than usual.
–17:00no-go1124 ft5.3 ft @ 11 s from 322°6 kt (gust 6 kt) from 62°falling 1.33 ft0.52Not today. Rougher swell than usual.
–20:00no-go09 ft5 ft @ 10 s from 327°6 kt (gust 6 kt) from 62°falling 0.44 ft0.52You'll see your hand and not much else, 10-ish. Not today. 5.0 ft from the NNW. No major hazards detected.
–23:00no-go1412 ft4.7 ft @ 10 s from 327°6 kt (gust 6 kt) from 62°rising 0.44 ft0.52Hard pass. No major hazards detected.
–02:00no-go1112 ft4.4 ft @ 10 s from 327°10 kt (gust 10 kt) from 76°rising 1.46 ft0.52Not today. No major hazards detected.
2026-10-11
Time (local)RatingScore /100VisibilitySwellWindTide (MLLW)ConfidenceWhy
–05:00no-go312 ft4.2 ft @ 10 s from 327°12 kt (gust 12 kt) from 83°high 2.27 ft0.52Hard pass. No major hazards detected.
–08:00no-go010 ft3.9 ft @ 10 s from 327°12 kt (gust 12 kt) from 83°falling 1.56 ft0.5210 ft of soup. Stay home. No major hazards detected.
–11:00fair2832 ft3.8 ft @ 9 s from 332°12 kt (gust 12 kt) from 83°low 1.02 ft0.5233 ft of visibility — making this one a stretch. 3.8 ft from the NNW. No major hazards detected.
–14:00good5343 ft3.7 ft @ 9 s from 332°12 kt (gust 12 kt) from 83°rising 1.49 ft0.52Go-able, just not perfect. 3.7-ft swell out of NNW. No major hazards detected.
–17:00fair2230 ft3.5 ft @ 9 s from 332°12 kt (gust 12 kt) from 83°falling 1.27 ft0.5230 ft of visibility — making this one a stretch. No major hazards detected.
–20:00no-go012 ft3.5 ft @ 9 s from 332°12 kt (gust 12 kt) from 83°falling 0.45 ft0.52Hard pass. No major hazards detected.
–23:00fair2115 ft3.4 ft @ 9 s from 332°12 kt (gust 12 kt) from 83°rising 0.27 ft0.52Marginal. You'd want to know this spot before going. No major hazards detected.
–02:00no-go1114 ft3.4 ft @ 12 s from 332°14 kt (gust 14 kt) from 69°rising 1.28 ft0.52Hard pass. No major hazards detected.
2026-10-12
Time (local)RatingScore /100VisibilitySwellWindTide (MLLW)ConfidenceWhy
–05:00no-go013 ft3.4 ft @ 13 s from 307°15 kt (gust 15 kt) from 62°high 2.3 ft0.52Hard pass. Choppy surface conditions.
–08:00no-go011 ft3.5 ft @ 13 s from 307°15 kt (gust 15 kt) from 62°falling 1.8 ft0.52You'll see your hand and not much else, 10-ish. Not today. Choppy surface conditions.
–11:00no-go932 ft3.5 ft @ 13 s from 307°15 kt (gust 15 kt) from 62°low 1.16 ft0.52Clear enough — about 33 ft. Try tomorrow. Choppy surface conditions.
–14:00great7787 ft— @ — from —15 kt (gust 15 kt) from 62°rising 1.39 ft0.44Workable if you know the spot. 85 ft of gin-clear water. Stiff ENE wind, 15 kt. Choppy surface conditions.
–17:00great6059 ft— @ — from —15 kt (gust 15 kt) from 62°falling 1.22 ft0.44Solid, with a few asterisks. 59-ft visibility. Choppy surface conditions.
–20:00no-go1623 ft— @ — from —15 kt (gust 15 kt) from 62°falling 0.49 ft0.44Decent 23-ft viz. Try tomorrow. Choppy surface conditions.
–23:00good4329 ft— @ — from —15 kt (gust 15 kt) from 62°rising 0.14 ft0.44Clear enough — about 30 ft — but you can work around it. 15-kt trades, surface has some texture. Choppy surface conditions.
–02:00good4429 ft— @ — from —15 kt (gust 14 kt) from 69°rising 1.1 ft0.44Go-able, just not perfect. Stiff ENE wind, 15 kt. No major hazards detected.

Tide events (feet above MLLW)