Japan · Harmonic Tide Model
Tide Table Iwasaki — 2026
📍 Lat 40.5833, Lon 139.9167
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 Iwasaki Tide Forecast
Found at 40.58° N latitude and 139.92° E longitude, Iwasaki serves as a prominent coastal location in Japan. Its tidal pattern is diurnal (one high and one low tide per day), with a mean tidal range of 0.2m and spring tides reaching up to 0.3m. With less than half a metre of variation, water levels here are mostly driven by surface waves and atmospheric pressure changes. On diurnal coasts, flood and ebb currents tend to be more prolonged, lasting nearly 12 consecutive hours in each direction. Waters along this coast are influenced by events such as El Niño, which can temporarily raise mean sea level. The 2026 tidal schedule for Iwasaki provides a full-year calendar of high and low waters alongside predicted sea levels. In September, Iwasaki is in its autumn season, a key period for water sports, fishing, diving, and coastal navigation. Our oceanographic database syncs historical gauge records to refine harmonic coefficients for this stretch of coastline.
⚠️ Notice
Astronomical prediction from a harmonic model — does not account for storm surge, meteorological tide, or extreme events.