Honolulu County, HI · Hawaiian Islands

Hanauma Bay

A protected volcanic crater bay on Oahu's southeast tip — the most famous snorkeling spot in Hawaii, with over 400 fish species in the calm reef-protected waters. Reservation required (online, 48 hours ahead); closed Mondays and Tuesdays. Strict no-touching reef policy and a mandatory orientation video.

Today's Conditions

Great day for a beach walk.

7.2ft waves · 80°F water · 81°F air

Full NWS forecast for Today

Partly sunny, with a high near 81. East northeast wind around 24 mph, with gusts as high as 35 mph.

Tonight

Partly cloudy, with a low around 77. East northeast wind 20 to 24 mph, with gusts as high as 35 mph.

Weather

81°F air — ideal beach weather
24 mph wind — breezy — anchor everything
Sunny skies — clear conditions

Water

80°F water — warm — full-day swim weather

Safety

UV 12 (extreme) — spf 50+ mandatory, limit mid-day exposure
7.2ft waves — big surf — strong currents, expert swimmers only

48 /100

34 Swim

53 Sunbathe

74 Walk

72 Photo

Best for walking today

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Atmosphere

Air Temp

81°F

Mostly Cloudy

Wind

24 mph

ENE

Rain

13%

Today

UV Peak

12 Extreme

High 10 AM–03 PM · burn in ~17m

Burn-free before 08 AM & after 05 PM

Tomorrow

81°F

Mostly Sunny

Water

Water Temp

80°F

Swimming weather

Wave Height

7.2 ft

8s · NE swell

Rip Current Risk · Regional Reference

No zone-specific NWS forecast for this beach (HIZ032)

The HFO office's Surf Zone Forecast doesn't cover this beach's forecast zone directly. Nearby coastal zones it does cover are listed below — regional reference only, not a substitute for the conditions at this specific beach.

HIZ003 Kauai n/a
HIZ006 Oahu n/a
HIZ017 Maui n/a
HIZ052 Big Island Windward and Southeast n/a
HIZ053 Big Island Windward and Southeast n/a
HIZ054 Big Island Windward and Southeast n/a
HIZ023 Big Island Leeward n/a

NWS SRF · HFO · Issued Jul 18, 7:34 PM

Sun & Moon

Sunrise

11:58 AM

Sunset

1:15 AM

Moon · 18%

Waxing Crescent

Neap tides — smaller range

Tides

Time	Type	Height
1:37 AM	Low	0.1 ft
7:41 AM	High	1.2 ft
12:44 PM	Low	0.5 ft
7:11 PM	High	1.8 ft

Time	Type	Height
2:10 AM	Low	0.1 ft
8:50 AM	High	1.3 ft
1:59 PM	Low	0.8 ft
7:44 PM	High	1.5 ft

Time	Type	Height
2:43 AM	Low	0.1 ft
10:02 AM	High	1.5 ft
3:39 PM	Low	0.9 ft
8:17 PM	High	1.2 ft

Time	Type	Height
3:19 AM	Low	0.1 ft
11:10 AM	High	1.7 ft
5:58 PM	Low	0.9 ft
8:52 PM	High	0.9 ft

Time	Type	Height
3:59 AM	Low	0.2 ft
12:09 PM	High	1.8 ft

Time	Type	Height
4:44 AM	Low	0.2 ft
12:58 PM	High	2.0 ft
9:15 PM	Low	0.6 ft
11:55 PM	High	0.6 ft

Time	Type	Height
5:33 AM	Low	0.2 ft
1:40 PM	High	2.1 ft
9:38 PM	Low	0.5 ft

High/low predictions from NOAA station 1612340, refreshed on every build. Times shown local.

7-Day Beach Day Forecast

Today Jul 18

81°

Partly Sunny

13%

Sun Jul 19

81°

Mostly Sunny

Mon Jul 20

81°

Isolated Rain Showers then Mostly Sunny

23%

Tue Jul 21

81°

Scattered Rain Showers

28%

Wed Jul 22

81°

Isolated Rain Showers then Mostly Sunny

24%

Thu Jul 23

81°

Sunny

10%

Fri Jul 24

81°

Mostly Sunny

13%

What to Bring Today

critical SPF 50 sunscreen UV index 12 — very high
recommended Beach shelter or anchored canopy 24 mph wind — umbrellas will flip
optional Swimsuit - water is swimmable Water is 80°F

Always remember water bottle, trash bag (leave no trace).

Beach Info

Parking

$3/vehicle.

Dogs

Dogs prohibited.

Entry Fee

$25/non-resident adult; HI residents free. Plus $3 parking.

Address

100 Hanauma Bay Rd, Honolulu, HI 96825

Amenities

lifeguardsrestroomsshowersgear rentalstram down to the bay

Frequently Asked

Is it safe to swim at Hanauma Bay today?

Hanauma Bay shows a live water-quality reading (bacteria levels) and today's swim-safety score at the top of this page, refreshed on every update. Seasonal lifeguards patrol the swim area in summer — follow their flags. Always review the current advisories, surf, and rip-current notes before getting in the water.

Is Hanauma Bay dog-friendly?

Dogs prohibited.

Is there an entry fee at Hanauma Bay?

$25/non-resident adult; HI residents free. Plus $3 parking.

Are there lifeguards at Hanauma Bay?

Yes. Seasonal lifeguards patrol Hanauma Bay during the summer swim season (typically Memorial Day through Labor Day). Outside that window, swim at your own risk.

What amenities are at Hanauma Bay?

Amenities at Hanauma Bay include lifeguards, restrooms, showers, gear rentals, tram down to the bay.

When is the water warmest at Hanauma Bay?

Hawaiian water is consistently 75-82°F year-round, with the summer peak in August-September. Swimming comfortable every month; rip currents and shore-break hazards drive the safety picture more than temperature.

Where is Hanauma Bay located?

Hanauma Bay is in Honolulu County, HI, at 100 Hanauma Bay Rd, Honolulu, HI 96825.