Is it good to snorkel or dive at Kahuku today?

On Tuesday, November 3 DiveVis rates Kahuku Caution by boat (49/100) (Seas ~8 ft out where you'd dive (NE swell, 9 s)). Possible, but check conditions on site before going in.

What is the water visibility at Kahuku today?

Fair, 8–15 ft (2.5–4.5 m) expected on Tuesday, November 3, with 90% confidence. It is an estimate from wind, swell, rain, runoff and ocean conditions, not a measurement.

What's the best time to get in the water at Kahuku today?

Between 06:00 and 18:00 HST on Tuesday, November 3, by boat.

How do you get in the water at Kahuku?

Swim or kayak in from shore, or go by boat from Haleiwa Small Boat Harbor.

DiveVis › Oahu › Kahuku

Kahuku, Oahu: dive & snorkel conditions

Kahuku, Tuesday, November 3: visibility Fair, 8–15 ft (2.5–4.5 m), and Caution by boat (49/100) to dive or snorkel, best 06:00–18:00 HST.

Updated 08:15 HST; the forecast refreshes every 6 hours. Confidence 90%.

Open Kahuku in the app

No Hawaii DOH Brown Water Advisory near Kahuku today.

Today by how you get in

Shore

✕ No-go 7

Surf ~8 ft at the entry (NE swell, 9 s)

Nearshore reef

Kayak

✕ No-go 7

Surf ~8 ft at the launch (NE swell, 9 s)

Ledge (100 ft) 1.3 km out

Boat

– Caution 49

Seas ~8 ft out where you'd dive (NE swell, 9 s)

Best 06:00–18:00 HST

Blue water (300 ft+) 4.4 km out

Next 7 days at Kahuku

Day	Divability	Visibility	Wind	Swell	Confidence
Tue 3	– Caution 49 by boat	Fair 8–15 ft	14 kt ENE	9.8 ft @ 10s	90%
Wed 4	– Caution 46 by boat	Fair 8–15 ft	15 kt ENE	8.2 ft @ 8s	90%
Thu 5	– Caution 35 by boat	Poor 3–8 ft	15 kt ENE	9.2 ft @ 10s	86%
Fri 6	– Caution 41 by boat	Fair 8–15 ft	15 kt ENE	9.8 ft @ 11s	81%
Sat 7	– Caution 43 by boat	Fair 8–15 ft	15 kt ENE	8.9 ft @ 9s	74%
Sun 8	– Caution 50 by boat	Fair 8–15 ft	13 kt ENE	8.5 ft @ 9s	68%
Mon 9	– Caution 52 by boat	Fair 8–15 ft	14 kt ENE	8.2 ft @ 9s	61%

About Kahuku

Kahuku faces north-northeast (30°): swell from that side arrives head-on.
Swim or kayak in from shore, or go by boat from Haleiwa Small Boat Harbor.
Water 100 ft (30 m) deep starts about 1.3 km out.
Blue water (300 ft / 100 m and deeper) is about 4.4 km out.

What spoils the visibility here

North and northwest swells, mostly October to April, hit it head-on and stir up the bottom.
It faces the trade winds (east-northeast most days), so wind chop often cuts visibility.
Heavy rain sends brown runoff into the water for a few days; Hawaii DOH posts Brown Water Advisories when it does.

Questions about Kahuku

Is it good to snorkel or dive at Kahuku today?: On Tuesday, November 3 DiveVis rates Kahuku Caution by boat (49/100) (Seas ~8 ft out where you'd dive (NE swell, 9 s)). Possible, but check conditions on site before going in.
What is the water visibility at Kahuku today?: Fair, 8–15 ft (2.5–4.5 m) expected on Tuesday, November 3, with 90% confidence. It is an estimate from wind, swell, rain, runoff and ocean conditions, not a measurement.
What's the best time to get in the water at Kahuku today?: Between 06:00 and 18:00 HST on Tuesday, November 3, by boat.
How do you get in the water at Kahuku?: Swim or kayak in from shore, or go by boat from Haleiwa Small Boat Harbor.

Other Oahu spots today

Estimates from wind, swell, rain, runoff, tides and ocean conditions; check conditions on site before going in. How the forecast works.