Conditions referenceSeason, water and visibilityBest Apr–Oct · Moderate current · 24–28°C (coldest Jan, warmest Aug)
- Current
- Moderate
- Water temperature
- 24–28°C (coldest Jan, warmest Aug)
- Visibility
- 10–30m: Offshore wrecks are often clearer than urban shore sites.
- Experience
- Shallow reefs are available to Open Water divers.
01 · Marine life
What you may see
Sightings are never guaranteed. The bars show typical likelihood by month.
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | commonly seen |
| May | commonly seen |
| June | commonly seen |
| July | commonly seen |
| August | commonly seen |
| September | commonly seen |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Green turtles are resident around Oʻahu reefs and wrecks.
| Month | Likelihood |
|---|---|
| January | occasional |
| February | occasional |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | occasional |
| November | occasional |
| December | occasional |
Eagle rays may pass offshore wrecks and reef edges in any month.
| Month | Likelihood |
|---|---|
| January | occasional |
| February | occasional |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | occasional |
| November | occasional |
| December | occasional |
Nudibranchs occur on Oʻahu reefs and wreck growth, with no useful month-level trend.
| Month | Likelihood |
|---|---|
| January | occasional |
| February | occasional |
| March | occasional |
| April | occasional |
| May | occasional |
| June | occasional |
| July | occasional |
| August | occasional |
| September | occasional |
| October | occasional |
| November | occasional |
| December | occasional |
Whitetips may rest under reef ledges and beside wreck structure, without a supported seasonal peak.
See all 8 species
02 · Dive sites
Dive sites worth knowing
A starting point, not a ranking. Conditions decide what works on the day.
Corsair
A small aircraft wreck on sand.
29–35m · Moderate current
Electric Beach
A west-coast shore entry near the power-station outflow.
3–20m · Moderate current
Sea Tiger Wreck
The wreck's bottom is beyond the normal recreational limit.
24–37m · Moderate current
See all 4 dive sites
03 · LogisticsGetting there and costsEasy. Fly to HNL. Typical trip $–$$.
Route overview
Easy
Day trips from a coastal base, about 0.5h from the airport.
Airport options
HNL
Daniel K. Inouye International Airport
Waikīkī and Kewalo-area departures are commonly 20–45 minutes by road, heavily dependent on traffic
Typical trip cost
$–$$
under $2,000 to $2,000–4,000
Per person, excluding international flights.
- Two-tank charters commonly run about $180–250 USD.
- Premium small boats, private guides, equipment, tax, parking and tips can move a week above the lower tier.