Indonesia · Harmonic Tide Model
Tide Table Surabaya — 2026
📍 Lat -7.2575, Lon 112.7521
Tide range. Higher values mean spring tides.
The moon drives the tides and the fish.
Radar de Chuva (Tempo Real)
Temperatura da Água
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Índice UV Atual
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🏖️ Recommended Activities
At low tide the waters tend to be calmer.
Access only within the 2 hours near the lowest tide.
Ask the skipper about the conditions.
🎣 Solunar Table
Major Periods (2h)
Minor Periods (1h)
Based on the Solunar Theory (John Alden Knight): fish and wildlife tend to feed more during the periods when the moon is overhead or underfoot (major) and at moonrise/moonset (minor). The score considers the lunar phase and the crossing of major periods with the local high tide.
Nearby places
📘 About Surabaya Tide Forecast
Situated along the coastline of Indonesia (-7.26° S, 112.75° E), Surabaya lies in the southern hemisphere. Its tidal pattern is mixed semi-diurnal (unequal tidal heights across the day), with a mean tidal range of 1.6m and spring tides reaching up to 2.2m. The 1.5–3m tidal range drives efficient water exchange in coves and estuaries, supporting good water quality. Benthic species in mixed tide intertidal zones adapt to variable aerial exposure durations between primary and secondary high tides. Its geographic position creates unique interactions between oceanic swell and local tidal currents. Review the annual 2026 tide guide for Surabaya, constructed with continuous high and low water forecasts measured in metres. In September, Surabaya is in its spring season, a key period for water sports, fishing, diving, and coastal navigation. Predictive output is continuously benchmarked against time series recorded by regional coastal reference stations.
⚠️ Notice
Astronomical prediction from a harmonic model — does not account for storm surge, meteorological tide, or extreme events.