Hachijojima Hirane

Hachijojima, Tokyo, Japanpinnacle

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Conditions & tides

Hachijojima HiraneTokyo

Good · 5/5

conditions visualisation

Good5/5

Calm and diveable right now — best window today 6 AM.

Wind7 kn NW

Current~0.5 kn S · model

Swell

0.4 m · 7s · E

Water

27 °C

Conditions through the day

5 AM5 PM

Calmest current near slack — 09:45 AM & 10:30 PM local

Sunrise 05:29 AM · Sunset 05:36 PM local

Show details

Tide · local

Outlook — select a day for full conditions

On-face swell 0.4 m — the component of the swell aimed at this site’s exposed face. Current is a regional model value (Copernicus, ~9 km grid) — a guide to the area, not a precise reef measurement. Imagery © Esri · not depth or visibility.

Scored by DiveConnect's site-physics model

Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.

Dived here today? How were conditions vs. what we showed?

About this site

Hirane (平根) on Hachijojima, in the Izu Islands of Tokyo, is a pinnacle site named for its flat-topped rock. It is dived as one of the island's offshore rock formations.

Diver notes

Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.

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Nearby dive sites

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