Japan · Harmonic Tide Model
Tide Table Soma — 2026
📍 Lat 37.8306, Lon 140.9617
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 Soma Tide Forecast
With geographic coordinates of 37.83° N, 140.96° E, Soma is a key coastal reference in Japan. Its tidal pattern is mixed semi-diurnal (unequal tidal heights across the day), with a mean tidal range of 1m and spring tides reaching up to 1.4m. Surfers here know the waves shift character between high and low tide, even if the tidal range is relatively modest. Mixed tides make planning more complex: the day's two high tides reach different heights, requiring careful study of the tide table before each outing. Its geographic position creates unique interactions between oceanic swell and local tidal currents. This page shows the complete 2026 tide table for Soma, with precise high and low tide times and heights in metres for every day of the year. In September, Soma is in its autumn season, a key period for water sports, fishing, diving, and coastal navigation. Predictive modeling employs updated local oceanic constants, ensuring minimal margin of error in peak tidal timing.
⚠️ Notice
Astronomical prediction from a harmonic model — does not account for storm surge, meteorological tide, or extreme events.