Tides

The times shown here are given in the current standard time.
The times listed are therefore in GMT+1 until 29/03/2026 at 02:00 GMT+1, in GMT+2 from 29/03/2026 at 03:00 UTC+2 to 25/10/2026 at 03:00 UTC+2, and in GMT+1 from 25/10/2026 at 02:00 UTC+1.

The tidal predictions presented in this document are calculated by SHOM.
For Cordemais, Le Pellerin and Nantes UB, the water levels at slack tide (at low and high tide) are calculated by GPMNSN based on the tidal coefficients provided by SHOM and represent the minimum levels that may be reached.

It is important to note that the measured water level may be higher depending on the flow rate of the Loire.
The slack water times provided in this directory correspond to the time of maximum water level (for high tides) or minimum water level (for low tides) predicted by the SHOM model, under low-water conditions (low water levels in the Loire).