How deep is Hanauma Bay?

Hanauma Bay has a depth range of 0.5–21.3 metres (2–70 feet). Check the dive site page for current conditions and any depth-specific guidance before planning your dive.

What will I see at Hanauma Bay?

Divers at Hanauma Bay in United States commonly report sightings of Hawaiian green sea turtles, coral, reef fish, schooling fish, and Green sea turtle. Marine life varies by season and conditions—check the site page for recent diver observations and photos.

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Shore entry

Hanauma Bay

Q: When is the best time to dive Hanauma Bay?

The best time to dive Hanauma Bay is typically Early in the day for visibility and before sediment/crowds build; confirm current official schedule, reservation, and closure days before travel.. Conditions vary, so check the latest reports and forecasts on the dive site page before your trip.

Hawaii, United States

1–21 m depthShore entry3mm wetsuit typical

Hanauma Bay at a glance

Hanauma Bay is a shore dive site in Hawaii, United States with depths of 0.5–21.3 m (2–70 ft). Typically most favorable Oct · from 3 years of archive data. Divers commonly see Hawaiian green sea turtles, coral, and reef fish. Recent reports put the water around 27°C (80°F). Check the latest conditions and entry details before you go.

Marine model · graded 4h ago

1.8 mwaves — about two meters expected

Tap a factor for its source and model point · Forecast 27°C · seasonal avg 26°C

Site hazards: Rip currents in the cable channel during ebb tide, Molokaʻi Express current near the bay mouth, Witches' Brew/Toilet Bowl hazards, crowds, shallow reef contact, strict conservation rules, and outer-bay depth/current for inexperienced divers.

Read the full hazards ↓

Dive windows this week

Best: Wed

Sun—

Mon7:00–9:00

Tue7:00–13:00

Wed7:00–20:00

Thu7:00–20:00

Fri—

Sat—

Favorable windowModerate window— no window

First light 5:38 · Sunrise 6:02 · Sunset 19:12

Source: Open-Meteo marine · model point 2.9 km from site · graded 4h ago

Forecast only — always assess conditions on site.

Forecast · NOAA tide model

Tide & slack timing

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

What Divers Say

Known for: coral, reef fish, schooling fish

Best time: Early in the day for visibility and before sediment/crowds build; confirm current official schedule, reservation, and closure days before travel.

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

Jan5%25°C2.5 m
Feb4%24°C2.8 m
Mar12%24°C2.3 m
Apr7%24°C2.3 m
May5%25°C2.0 m
Jun13%26°C1.9 m
Jul10%26°C1.9 m
Aug14%26°C1.9 m
Sep12%27°C1.8 m
Oct19%27°C1.9 m
Nov3%26°C2.5 m
Dec2%25°C2.6 m

October hastypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life recorded at this site, by month

Recorded observations — evidence of past sightings, not a promise of what you’ll encounter.

Species seen here

Hawaiian green sea turtlesOccasionally seen
coralCommonly seen
reef fishCommonly seen
schooling fishCommonly seen
Green sea turtleCommonly seen
Raccoon butterflyfishCommonly seen
Humuhumunukunukuapua'a (reef triggerfish)Commonly seen
Yellow tangCommonly seen
Hawaiian monk sealRarely seen
Whitemouth moray eelCommonly seen

Canthigaster jactator recorded here Oct (2 records)
most recent 2013
Chelonia mydas recorded here Oct (2 records)
most recent 2013
Heniochus acuminatus recorded here Oct (2 records)
most recent 2013
Melichthys niger recorded here Oct (2 records)
most recent 2013
Rhinecanthus aculeatus recorded here Oct (2 records)
most recent 2013
Rhinecanthus rectangulus recorded here Oct (2 records)
most recent 2013
Scarus psittacus recorded here Oct (2 records)
most recent 2013
Thalassoma duperrey recorded here Oct (2 records)
most recent 2013

Counts are occurrence records near this site from public biodiversity datasets (GBIF), grouped by calendar month across all sampled years. Sightings vary — past records are context, not a prediction.

Fills & rentals nearby

Facts from OpenStreetMap, corrected by the community — listed by distance only. Details change; confirm with the shop.

Trident Adventures18.3 km
+1-808-762-3483 tridentadventures.com
Tu-Sa 09:00-18:00 hours from OpenStreetMap — call ahead
Report a fix
Hawaiian Diving Adventures19.3 km
hawaiiandiving.com
Report a fix

Shop facts come from OpenStreetMap and community corrections, shown nearest first. PickADive lists facts and contacts only — no listing is sponsored or ranked.

Site details

Marine Life Conservation District in a volcanic bay with shallow inner reef for snorkeling and deeper outer-bay diving for experienced divers. Official rules prohibit taking or injuring marine life, altering coral/geology, feeding fish, and operating watercraft. Access is managed by park hours, parking limits, fees, and required orientation/reservation rules.

reefshore

Rip currents in the cable channel during ebb tide, Molokaʻi Express current near the bay mouth, Witches' Brew/Toilet Bowl hazards, crowds, shallow reef contact, strict conservation rules, and outer-bay depth/current for inexperienced divers.

Reviews

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