Is it good to snorkel or dive at Keauhou (manta site) today?

On Tuesday, November 3 DiveVis rates Keauhou (manta site) Go by boat (85/100). Conditions look good.

What is the water visibility at Keauhou (manta site) today?

Good, 15–25 ft (4.5–7.5 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 Keauhou (manta site) today?

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

How do you get in the water at Keauhou (manta site)?

Boat access only, from Keauhou Bay boat ramp.

DiveVis › Big Island › Keauhou (manta site)

Keauhou (manta site), Big Island: dive & snorkel conditions

Keauhou (manta site), Tuesday, November 3: visibility Good, 15–25 ft (4.5–7.5 m), and Go by boat (85/100) to dive or snorkel, best 06:00–18:00 HST.

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

Open Keauhou (manta site) in the app

No Hawaii DOH Brown Water Advisory near Keauhou (manta site) today.

Today by how you get in

Boat

✓ Go 85

Seas ~3 ft · wind 0 kt · current 0.4 kt

Best 06:00–18:00 HST

Blue water (300 ft+) 3.0 km out

Next 7 days at Keauhou (manta site)

Day	Divability	Visibility	Wind	Swell	Confidence
Tue 3	✓ Go 85 by boat	Good 15–25 ft	2 kt S	3.3 ft @ 12s	90%
Wed 4	✓ Go 89 by boat	Good 15–25 ft	2 kt S	2.3 ft @ 11s	90%
Thu 5	✓ Go 87 by boat	Good 15–25 ft	3 kt SE	2.6 ft @ 13s	86%
Fri 6	✓ Go 85 by boat	Good 15–25 ft	2 kt SE	3 ft @ 13s	81%
Sat 7	✓ Go 85 by boat	Good 15–25 ft	2 kt SE	3 ft @ 11s	74%
Sun 8	✓ Go 88 by boat	Excellent 25–60 ft	3 kt S	2.6 ft @ 11s	68%
Mon 9	✓ Go 86 by boat	Excellent 25–60 ft	2 kt SSE	2.6 ft @ 11s	61%

About Keauhou (manta site)

Keauhou (manta site) faces west-southwest (250°): swell from that side arrives head-on.
Boat access only, from Keauhou Bay boat ramp.
Water 100 ft (30 m) deep starts about 0.4 km out.
Blue water (300 ft / 100 m and deeper) is about 3.0 km out.

What spoils the visibility here

South swells, mostly May to September, reach it.
It is sheltered from the usual trade winds; Kona (southerly) winds and swells are its weak spot.
Heavy rain sends brown runoff into the water for a few days; Hawaii DOH posts Brown Water Advisories when it does.

Questions about Keauhou (manta site)

Is it good to snorkel or dive at Keauhou (manta site) today?: On Tuesday, November 3 DiveVis rates Keauhou (manta site) Go by boat (85/100). Conditions look good.
What is the water visibility at Keauhou (manta site) today?: Good, 15–25 ft (4.5–7.5 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 Keauhou (manta site) today?: Between 06:00 and 18:00 HST on Tuesday, November 3, by boat.
How do you get in the water at Keauhou (manta site)?: Boat access only, from Keauhou Bay boat ramp.

Other Big Island spots today

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