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Saint-Malo, Brittany · Brittany · france

Tide is currently falling — next low at 00:00

3.19 m
Next high · 05:00 CEST
Heights relative to MSL · 2026-04-27Coef. 68Solunar 4/5

Tide times at Saint-Malo, Brittany on Monday, 27 April 2026: first low tide at 02:00, first high tide at 04:00, second low tide at 11:00, second high tide at 17:00. Sunrise 06:57, sunset 21:15.

TIDE CURVE

Next 24 hours at Saint-Malo, Brittany

-5.4 m-0.7 m4.1 mHeight (MSL)18:0022:0002:0006:0010:0014:00L 00:00H 05:00L 12:00nowTime (Europe/Paris)

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.

TODAY'S HIGHLIGHTS

Sun, moon and conditions on Mon 27 Apr

Sunrise
06:57
Sunset
21:15
Moon
Waxing gibbous
75% illuminated
Wind
27.2 m/s
20°
Water temp
13.6 °C
Coefficient
68
Mid-cycle

Conditions as of 18:00 local time. Refreshes daily.

7-DAY OUTLOOK

Highs and lows next 7 days

Today
Coef. 68
Tue
3.2m05:00
-3.9m00:00
Coef. 80
Wed
3.6m06:00
-4.5m00:00
Coef. 91
Thu
4.1m07:00
-5.1m01:00
Coef. 97
Fri
4.4m07:00
-5.3m02:00
Coef. 100
Sat
4.4m08:00
-5.3m02:00
Coef. 100
Sun
4.3m08:00
-5.2m03:00
Coef. 97
All extrema (7 days)
DayTypeTimeHeightCoef.
Tue 28 AprLow00:00-3.9m80
High05:003.2m
Low12:00-4.6m
High18:003.3m
Wed 29 AprLow00:00-4.5m91
High06:003.6m
Low13:00-5.1m
High18:003.8m
Thu 30 AprLow01:00-5.1m97
High07:004.1m
Low13:00-5.1m
High19:004.4m
Fri 01 MayLow02:00-5.3m100
High07:004.4m
Low14:00-5.3m
High20:004.4m
Sat 02 MayLow02:00-5.3m100
High08:004.4m
Low15:00-5.1m
High20:004.5m
Sun 03 MayLow03:00-5.2m97
High08:004.3m
Low15:00-4.8m
High21:004.4m

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

SOLUNAR FORECAST

Fishing windows · 7-day rating

The angler tradition that rates each day for fish-bite likelihood using moon transits and rise/set. One to five stars, not a scientific forecast.

SPRING AND NEAP CYCLE

Cycle dates near Saint-Malo, Brittany

Next spring tide on Sat 02 May (range 9.8m). Last neap on Mon 27 Apr.

Spring tides cluster around new and full moons (biggest swings). Neap tides land on quarter moons (smallest swings). See the spring tide and neap tide glossary entries for the why.

EDITORIAL

About tides at Saint-Malo, Brittany

Saint-Malo sits on the north coast of Brittany at the mouth of the Rance estuary, on the western edge of one of the largest tide ranges in Europe. The Bay of Saint-Malo and the wider Mont-Saint-Michel approaches funnel the open-Atlantic tide into a triangular embayment, and the geometry amplifies the swing dramatically. Mean range at the Saint-Malo gauge is about 7.9 metres, climbing past 12 on the largest spring tides of the equinoxes. The pattern is cleanly semidiurnal, two highs and two lows of comparable size, twelve and a half hours apart. The walled old town is built on a near-island that connects to the mainland by a narrow neck which floods on spring high water. The plage de Bon-Secours and the fortifications below the ramparts open onto wide expanses of sand at low water, the beach widening by hundreds of metres on the bigger lows. The Rance tidal-power station upstream — operating since 1966 — exploits the same swing. Predictions on this page come from Open-Meteo's gridded marine model — general-planning data, not navigation-grade. SHOM (Service Hydrographique et Océanographique de la Marine) is the authoritative French tide source, with harmonic predictions for Saint-Malo calibrated on decades of gauge data.

COMMON QUESTIONS

Tide questions about Saint-Malo, Brittany

When is the next high tide at Saint-Malo?
The hero block shows the next high tide at Saint-Malo harbour in local Central European time. The 7-day table covers all four daily extremes. The big spring tides of the equinoxes (March and September) produce the largest swings of the year — the official 'grandes marées' calendar in France lists those dates well in advance.
Why is the tide range so big at Saint-Malo?
The Bay of Saint-Malo and the broader Mont-Saint-Michel embayment funnel the open-Atlantic tide into a constricted triangle. The geometry amplifies the astronomical signal in the same way the Bay of Fundy does on the Canadian coast. Spring tides at Saint-Malo top 12 metres at the equinoxes — only a handful of places worldwide run bigger swings.
Where do these tide predictions come from?
Open-Meteo's marine model produces the predictions on this page — gridded data, useful for daily planning but not for piloting. SHOM is the authoritative French tide source. The Saint-Malo harmonic record is one of the longest continuous gauge records in Europe and SHOM's predictions for it are navigation-grade.
When does the beach widen for the longest walk along the ramparts?
The plage de Bon-Secours and the fortifications coast widen by hundreds of metres on the biggest spring tides of the lunar month. The 'grandes marées' around the equinoxes produce the most dramatic exposures. The 7-day table on this page flags each day's lowest predicted tide. Walk back well before the flood: the rate of rise on a 12-metre cycle is fast — a spring flood at Saint-Malo runs about a metre of vertical rise every fifteen minutes near mid-flood.
Is this safe to use for navigation?
No. Saint-Malo is a major commercial harbour with locked basins, a tidal sill, and ferry traffic to the Channel Islands. For piloting use SHOM's authoritative tide tables, the harbour's own published times for the écluse, and the latest Avis aux Navigateurs. The currents in the Rance estuary and around the offshore reefs of the Cancale plateau need real navigational sources.

8-day tide table — Saint-Malo, Brittany

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

DayTypeTimeHeight
Mon 27 AprLow02:000.7m
High04:002.6m
Low11:00-3.9m
High17:002.8m
Tue 28 AprLow00:00-3.9m
High05:003.2m
Low12:00-4.6m
High18:003.3m
Wed 29 AprLow00:00-4.5m
High06:003.6m
Low13:00-5.1m
High18:003.8m
Thu 30 AprLow01:00-5.1m
High07:004.1m
Low13:00-5.1m
High19:004.4m
Fri 01 MayLow02:00-5.3m
High07:004.4m
Low14:00-5.3m
High20:004.4m
Sat 02 MayLow02:00-5.3m
High08:004.4m
Low15:00-5.1m
High20:004.5m
Sun 03 MayLow03:00-5.2m
High08:004.3m
Low15:00-4.8m
High21:004.4m
Mon 04 MayLow01:00-2.4m

Not for navigation. Generated 2026-04-27T15:20:30.363Z.

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

Not for navigation. Page generated 2026-04-27T15:20:30.363Z. Predictions refresh daily.