Finding the pulse of the reef...
This week
snorkel & freedive readBest day this week: tomorrow, 7 AM–12 PM, and only a mixed read.
Next 12 hours
Rain now, clear moving in around 6 PM.
Conditions
Visibility, water, current, and wind. The in-water read.
Visibility
Poor
Strong onshore — blown out · Recent / incoming rain
Water
80°
1–2 mm
Current
0.2 kt
slack
Surge
6.3s
some surge
Wind
17 mph
onshore ENE
Visibility is an estimate — wind, rain, tide & water alerts.
The spot
The things that stay true when the weather changes.
Yes. Shark's Cove, HI is snorkelable directly from shore.
Shark's Cove, HI runs roughly 3 to 20 feet deep in the area people use.
Roughly May to October, when DLNR describes the water as generally calm. Surge happens even in summer, so pick a flat day.
Beach park lot with roadside shoulder alongside. Around 30 cars, and it fills by mid-morning through the summer.
Checked 2026-07-19. Sources: Hawaii DLNR Division of Aquatic Resources, Hawaii DLNR, Pupukea MLCD rules, City and County of Honolulu Ocean Safety.
Tides & Sky
When the water moves, and how bright the night.
Best in-water window
1:52 PM – 3:52 PM
High slack · Sun high · Least current
Slack tide means least current and the clearest water — best around the turn, in good light.
High
2:24 PM
1.758ft
Low
6:58 AM
0.124ft
Full Moon
100%
Daylight: 12h 39m · UV 8 Very high
Life
The reef keeps its own calendar.
Pacific Golden-Plover · Pacific Golden-Plover · Western Cattle-Egret · Pacific Golden-Plover · Pacific Golden-Plover +4 more
Regulations
Take only what the season allows.
We've only loaded detailed seasons & limits for South Florida so far. For Hawaii, check the official source before you fish:
Hawaii saltwater regulationsOfficial source: DLNR DAR· opens the agency site
Watch from shore today — let it blow through.
Snorkel: poor viz, warm 80 F water, 4-5 ft waves, 17 mph onshore wind.
Best window: 1:52 PM–3:52 PM · High slack · Sun high · Least current