Cook Islands · Harmonic Tide Model
Tide Table Rarotonga — 2026
📍 Lat -21.2070, Lon -159.7750
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 Rarotonga Tide Forecast
The coordinates for Rarotonga (-21.21° S, 159.78° W) place this stretch of Cook Islands's coast in the southern hemisphere. Its tidal pattern is semi-diurnal (two high and two low tides per day), with a mean tidal range of 0.4m and spring tides reaching up to 0.5m. With tidal range under 0.5m, currents here are weak — ideal for diving and kayaking in sheltered waters. The regularity of semi-diurnal tides — two highs and two lows approximately 6 hours apart — simplifies crossing planning and fishing scheduling. Mean sea level here shows a gradual rising trend linked to global climate change, monitored continuously by local gauges. Check the official 2026 tide forecast for Rarotonga here, including detailed monthly schedules, peak times, and daily metric swings. In October, Rarotonga is in its spring 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.