Cap d'Agde tide times

Predictions: Open-Meteo Marine (MeteoFrance SMOC, 0.08° grid) — heights relative to MSL (not chart datum / LAT). Model-derived.

Model-derived from a global ocean grid. Useful indication; expect about ±45 minutes on average vs. a local harmonic gauge, individual stations vary widely. See /methodology for per-region detail. Not for navigation.

Conditions as of 06:00 local time. Refreshes daily.

Predictions: Open-Meteo Marine (MeteoFrance SMOC, 0.08° grid) — heights relative to MSL (not chart datum / LAT). Model-derived. · Not for navigation.

The angler tradition for major/minor fishing windows: major ≈3-hour windows around moon transit and opposition; minor ≈2-hour windows around moonrise and moonset. Times are Europe/Paris local. Folk tradition, not a scientific forecast.

Cap d'Agde is geologically distinct from the rest of the Languedoc coast. Where Sète and Palavas sit on flat sandy barriers, Cap d'Agde is built on a volcanic cape — a basalt headland formed by the Agde volcano, last active around 750,000 years ago. The dark volcanic rock contrasts sharply with the pale sand beaches on either side and gives the cape a different profile: exposed, rocky in places, with natural breakwaters that define sheltered harbour water on the western (Herault river) side. The Hérault river enters the sea just west of Cap d'Agde. Unlike the Loire at Saint-Nazaire, there is no meaningful tidal bore or estuarine amplification — Mediterranean tidal range is too small. The river mouth is a bar-built estuary, and the Grau d'Agde channel connects the river system to the Étang de Thau via inland waterway. Mean astronomical tidal range at Cap d'Agde is under 0.3 metres. This is consistent across the entire Languedoc coast; the volcanic cape does not create any local tidal amplification. Sea-level conditions here are governed by wind — primarily the Marin (south/southwest), which pushes water onshore and can raise levels 0.3–0.5 m above baseline during strong episodes, and the Tramontane (northwest), which lowers levels and often arrives with sudden clarity after a Marin episode. The Mistral (west-northwest, channelled through the Rhône valley further east) has less direct influence at Cap d'Agde than at Marseille or the Camargue coast. The marina at Cap d'Agde is one of the largest in Europe, with capacity for over 2,000 vessels. Marina water level is largely independent of tidal variation — the lock-controlled inner basin maintains a stable level; only the outer harbour and approaches see the residual Mediterranean tidal signal. The approach channel depth and the outer harbour sea state are more dependent on swell and wind conditions than on tide height. The naturist village (Village Naturiste), established in the 1970s, occupies the southeastern quarter of the resort. At roughly 90 ha, it is Europe's largest naturist resort. It is entirely unrelated to tidal conditions. Beach conditions at Cap d'Agde vary with aspect: the main town beaches face south and are exposed to southerly Marin swell; the beaches to the west near the Hérault mouth are more sheltered. Water temperature follows the regional Mediterranean pattern — around 13°C in winter, 24–25°C in August. Sea-level predictions here are from Open-Meteo Marine (±45 min, ±0.2–0.3 m). For navigation in the marina approach and the Grau d'Agde, use current-edition Navicarte charts and SHOM data.