Portugal · Harmonic Tide Model
Tide Table Cascais — 2026
📍 Lat 38.6920, Lon -9.4170
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 Cascais Tide Forecast
The coordinates for Cascais (38.69° N, 9.42° W) place this stretch of Portugal's coast in the northern hemisphere. Its tidal pattern is semi-diurnal (two high and two low tides per day), with a mean tidal range of 1.6m and spring tides reaching up to 2.5m. With 1.5–3 metre swings, high tide floods extensive tidal flats while low tide reveals coastal habitats important to local wildlife. The regularity of semi-diurnal tides — two highs and two lows approximately 6 hours apart — simplifies crossing planning and fishing scheduling. Waters along this coast are influenced by events such as El Niño, which can temporarily raise mean sea level. Check the official 2026 tide forecast for Cascais here, including detailed monthly schedules, peak times, and daily metric swings. In September, Cascais is in its autumn season, a key period for water sports, fishing, diving, and coastal navigation. Astronomical tables for this site are processed using tidal harmonic algorithms and adjusted for regional bathymetry.
⚠️ Notice
Astronomical prediction from a harmonic model — does not account for storm surge, meteorological tide, or extreme events.