The tide at Saint-Malo today
Updated on 30 July 2026
Official tide times for Saint-Malo
Tide predictions provided by SHOM (French national hydrographic office). If the widget does not load, the official tide times remain available below.
Sea and wind: the days ahead
Forecast swell and wind at Saint-Malo — daily maximums.
| Day | Max swell | Period | Max wind |
|---|---|---|---|
| 30 July 2026 | 0.4 m (NW) | 3 s | 14 km/h · 8 kn (NW) |
| 31 July 2026 | 0.9 m (NW) | 4 s | 32 km/h · 17 kn (NW) |
| 1 August 2026 | 0.8 m (NW) | 4 s | 29 km/h · 16 kn (N) |
| 2 August 2026 | 0.6 m (N) | 3 s | 24 km/h · 13 kn (N) |
| 3 August 2026 | 0.4 m (N) | 3 s | 18 km/h · 10 kn (E) |
Indicative forecasts (daily maximums): they are not enough to plan a trip at sea or onto the foreshore. Swell and wind forecasts: Météo-France (Licence Ouverte), computed on 30 July 2026.
Will the sea leap the wall?
Waves over the Sillon sea wall: our index for 13–15 August 2026
Forecast closer to the dates
Too early to forecast swell and wind: reliable forecasts cover about 7 days. Come back closer to the date.
Announced coefficient: 102
A qualitative, heuristic estimate — never a guarantee: nature does what it wants. Swell and wind forecasts: Météo-France (Licence Ouverte).
The next spring tides
- 13–15 August 2026102summer
- 11–13 September 2026102autumn equinoxequinox
- 27–29 September 202699autumn equinoxequinox
Where this data comes from
The times and heights are served by the official SHOM widget, never copied — that is this site’s rule. The swell and wind figures are forecasts frozen when the page is built, refreshed twice a day with their source credited; after 24 hours without a refresh they declare themselves unavailable rather than quietly ageing. The dates and coefficients of the spring tides are public data, checked against the official calendar and published with credit to the SHOM.
Useful links
The port’s full official tide tables are on maree.shom.fr, and the département’s weather warnings on vigilance.meteofrance.fr. On the Rance side, the water levels and the dam’s lock times have their own page. To plan a visit rather than today’s outing: the spring tide calendar, the waves that leap the wall and how the tides work.
Written and kept up to date by a Saint-Malo local in love with this coast. The story behind this guide
What is the tide at Saint-Malo today?
Today's times and heights — high and low waters — are in the official SHOM widget at the top of this page. It is the only source this site uses for tide times: we never copy them, the widget serves them straight from the SHOM, France's national hydrographic office, so they are always current. Check the official SHOM tide times before any outing onto the foreshore.
What is today's tidal coefficient?
Today's coefficient appears in the official SHOM widget at the top of the page, together with the times. The dates and maximum coefficients of the next spring tide episodes (coefficient 95 and above) are listed further down — public data, published as guidance with credit to the SHOM.
What does the "will the sea leap the wall?" index mean?
It is our estimate, for the next spring tide, of how likely waves are to break over the Sillon sea wall: it crosses the coefficient with swell height, swell period and wind. Three levels — likely, possible, unlikely — with the values that drive the result shown alongside. A heuristic estimate, never a guarantee.
Why is the wind given in km/h and in knots?
Km/h speaks to landlubbers, knots to sailors: one knot is one nautical mile per hour, or 1.852 km/h. The "sea and wind" table shows both, plus the direction the wind comes from as compass points — forecast daily maximums, not averages.
When is the next spring tide?
The next three episodes are listed on this page with their dates and coefficients, the nearest first. For the year at a glance — sixteen episodes in 2026, equinoxes included — the full spring tide calendar details them all, with a page for each season.
Is this page enough to plan a trip out?
No. Everything here is indicative: before setting out, check the official SHOM tide times (widget at the top) and the Météo-France Vigilance bulletin for the day's conditions. The sea comes back faster than you can walk: keep a margin on the times, especially around the islets and uncovering sandbanks.