Neiafu tide times

Predictions: Open-Meteo Marine (MeteoFrance SMOC, 0.08° grid) — heights relative to MSL (not chart datum / LAT). Model-derived.

Model-derived from a global ocean grid. Useful indication; expect about ±45 minutes on average vs. a local harmonic gauge, individual stations vary widely. See /methodology for per-region detail. Not for navigation.

Conditions as of 17:00 local time. Refreshes daily.

Predictions: Open-Meteo Marine (MeteoFrance SMOC, 0.08° grid) — heights relative to MSL (not chart datum / LAT). Model-derived. · Not for navigation.

The angler tradition for major/minor fishing windows: major ≈3-hour windows around moon transit and opposition; minor ≈2-hour windows around moonrise and moonset. Times are Pacific/Tongatapu local. Folk tradition, not a scientific forecast.

Next spring tide on Wed 20 May (range 1.2m). Next neap on Sat 23 May.

Spring tides cluster around new and full moons (biggest swings). Neap tides land on quarter moons (smallest swings). See the spring tide and neap tide glossary entries for the why.

Neiafu is the main town and administrative capital of the Vava'u Group, the northernmost island cluster in the Kingdom of Tonga. The town sits on a peninsula overlooking the Port of Refuge — a harbour formed by the complex of islands and channels that define the Vava'u Group's central lagoon. The entrance to the Port of Refuge from the north is through a narrow passage between two headlands, opening into a broad, deep anchorage that is protected from all swell directions by the surrounding island mass. The harbour is one of the finest natural anchorages in the South Pacific and has been a waypoint on the Pacific sailing circuit for decades. The tidal regime at Neiafu is mixed semidiurnal, with a spring range of approximately 1.0 to 1.2 metres. The Vava'u Group's tidal character has a moderate diurnal inequality — the two daily highs and lows differ, but not as dramatically as in Fiji's northern islands. The tidal streams within the Vava'u channel system are gentle, rarely exceeding 0.5 knots even at springs, because the lagoon volume is large relative to the pass openings. This makes the anchorage and the inter-island passages straightforward to navigate at any tide state, a key factor in the group's popularity as a sailing and charter destination. Humpback whales (Megaptera novaeangliae) are the primary reason most visitors time their Vava'u visit to July through October. The whales migrate from Antarctic feeding grounds to the warm, sheltered waters of the Vava'u Group to breed and calve. Tonga holds one of the world's few permits for swimming with humpback whales under a managed encounter system: licensed operators run daily encounters with a maximum of 4 swimmers at a time, governed by the whales' own behaviour — the animals can approach or depart freely. The encounters are most frequent in the outer channels between the Vava'u islands, where whales move freely between the protected inner anchorage and the open ocean to the northwest. The yacht charter industry is central to Neiafu's economy. Bareboat and crewed charters depart from the town marina and range through the 50-island group over 7 to 14 days. The protected inner waters and the numerous island anchorages give charter itineraries flexibility — there is almost always a sheltered anchorage within an hour's sail of any position in the group. The outer islands, facing the Pacific, require more careful weather assessment but have the best reef diving and most secluded beaches. Neiafu has the services needed for provisioning: supermarkets, a fresh produce market on Tuesday and Friday, a hardware store, dive operators, and chandlery supplies at the main marina. The town market sells locally grown taro, yam, sweet potato, and tropical fruit alongside fresh fish from the Vava'u fishing community. Tongan fish is excellent; fresh wahoo (ono) and mahi-mahi are commonly available in the market during the fishing season. The two sea caves accessible by day boat from Neiafu — Swallows Cave on Kapa Island and Mariner's Cave on Nuapapu — are the most-visited specific sites in the Vava'u Group and are described in separate entries. Predictions on this page come from Open-Meteo Marine, a gridded global ocean model. Accuracy is typically within plus or minus 45 minutes on timing and 0.2 to 0.3 metres on height — model-derived, not from a local gauge. The local tide authority is the Tonga Meteorological Service.