Banyuwangi 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 11:00 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 Asia/Jakarta local. Folk tradition, not a scientific forecast.

Next spring tide on Mon 18 May (range 2.6m). Next neap on Sun 17 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.

Banyuwangi is the easternmost city in Java, positioned at the Bali Strait — the 2.4 km-wide channel that separates Java from Bali and connects the Java Sea to the north with the Indian Ocean to the south. The strait's narrow geometry concentrates tidal flows: currents through the Bali Strait run 2–3 knots on a normal tidal cycle, reversing direction with each tidal phase. The mean tidal range at Banyuwangi is approximately 1.5–2.0 m above Chart Datum according to BMKG data, with mixed semidiurnal character — stronger than the Java Sea to the north but driven by the Indian Ocean tidal pulse. For mariners, the Bali Strait is a transit that demands tidal planning. The 2.4 km width at the narrowest point (near the Ketapang–Gilimanuk ferry crossing) is enough for commercial shipping and ro-ro ferries operating around the clock, but the current set affects vessel handling. The ferry crossing between Ketapang (Banyuwangi side) and Gilimanuk (Bali side) runs continuously; at peak current the crossing time extends. Leisure sailors transiting the strait in smaller vessels typically aim to cross at or near slack water. Banyuwangi's coastline faces the strait and a section of the Indian Ocean south of the strait mouth. Plengkung beach (G-Land), around 70 km south by road via the Meru Betiri National Park boundary, is one of the most consistently cited big-wave surf breaks in Indonesia — accessible by boat from Banyuwangi's southern coast or by overland track from the park. The Indian Ocean south of the strait generates long-period easterly and south-easterly swells; the season for surf is May through September. Ijen volcano, 50 km northwest of the city centre, has made Banyuwangi the standard staging town for the Ijen trek. The crater lake — highly acidic, sulphuric — and the blue-flame sulphur combustion phenomenon visible in the pre-dawn hours have drawn significant independent-travel interest. The trek is timed to arrive at the crater rim before sunrise; the blue flame is only visible in darkness. Tidal conditions on the coast have no bearing on the volcano visit, but the combination of the two draws (coastal access and Ijen) makes Banyuwangi a logical 2–3 day base. BMKG is the authoritative source for Banyuwangi tidal data. Open-Meteo Marine predictions shown here carry ±45 min / ±0.2–0.3 m uncertainty.