Hakaumama'o Reef is a dive site in Tonga. Typically most favorable Jan · from 3 years of archive data. Recent reports put the water around 23°C (74°F). Check the latest conditions and entry details before you go.
Tap a factor for its source and model point · Forecast 23°C · seasonal avg 24°C
Dive windows this week
Best: FriFavorable windowModerate window— no window
First light 6:17 · Sunrise 6:39 · Sunset 18:34
Source: Open-Meteo marine · model point 7.5 km from site · graded 2h ago
Forecast only — always assess conditions on site.
Dated firsthand observations from divers — not current conditions.
No diver reports for this site yet. — one dated observation helps every diver after you.
What conditions have historically been typical at this site, month by month — not a forecast.
January 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.
No recorded sightings data for this site yet. Species lists appear as GBIF records and diver reports accumulate.
No dive shops mapped within 25 km. Know one? Add it to the map.
Data updated July 2026
No description for this site yet — divers who know it can suggest one below.
No hazards recorded for this site yet — that never means there are none. Ask a local operator before you dive.
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