Brittany is two cruising grounds wearing one name. Sailors talk about it as a single region, but the north coast and the south coast feel like different countries the moment you round the Pointe du Raz and the sea state, the light and the rhythm of your day all change. I have cruised both, north first because it is closer to England, south later once I understood what I had been missing. If you are planning a Brittany trip and can only do one side, the choice matters more than the brochures admit.
Let me lay out where they genuinely differ, then tell you who each coast suits.
Sunshine and climate, the underrated divide
This is the difference that decides most holidays, and almost nobody leads with it.
The south coast around the Gulf of Morbihan and Carnac records more than 2,000 hours of sunshine a year, a figure comparable with Biarritz on the Basque coast. The north coast manages closer to 1,300 hours and runs cooler, wetter and windier. The Gulf Stream gives the south a genuine micro-climate, mild and dry, while the north takes the full weight of weather marching in off the western approaches.
In practice that means a south Brittany fortnight in July gives you swimming-warm anchorages and long settled evenings, while the same fortnight in the north can hand you three grey days of drizzle and a fresh westerly. Neither is bad sailing. But if your crew judge a holiday by the colour of the sky, the south wins before you cast off.
Tides: serious on both sides, brutal in the north
Brittany is big-tide country wherever you go, and if you come from the tideless Mediterranean you must respect that. The split is in degree.
The north coast carries the larger range, with springs of around 5 metres common and the bay of Saint-Malo and Mont-Saint-Michel exceeding 13 to 14 metres between high and low water, among the biggest tides in Europe. That dictates everything: drying harbours, sills you can only cross near high water, and tidal gates like the Chenal du Four where you time your passage to the stream or fight it pointlessly.
The south coast is gentler but not soft. The Gulf of Morbihan funnels the flood and ebb through a narrow mouth where currents can reach up to 9 knots, faster than many cruising boats motor, so you plan your entry and exit around slack water. Outside the gulf the ranges ease and the sandy bays let you dry out deliberately in settled weather.
If big tides are new to you, do not improvise on either coast. The discipline is learnable in a season, and I built the habit using the Atlantic tides crash course. It is the single skill that separates a relaxed Brittany cruise from a stressful one.
The sailing terrain
The two coasts reward different temperaments.
The north is rock and pilotage. The Pink Granite Coast, the approaches to Paimpol and Brehat, the channels through the Sept-Iles, these are passages you navigate by transits and careful chartwork, threading between drying rocks with the tide doing half your thinking for you. It is some of the most satisfying coastal pilotage in Europe, and some of the most demanding. The reward is anchorages you share with nobody and a coastline that looks carved.
The south is islands and open water. Belle-Ile, Houat, Hoedic, the Glenan archipelago with its turquoise lagoon, the Odet river running up to Quimper. The distances between stops are short, the harbours plentiful, and the sailing more forgiving once you are clear of the tidal gates. It is the friendlier ground for a mixed-ability crew or a family.
I wrote up the two grounds separately in the north Brittany cruising guide and the south Brittany cruising guide, and reading both side by side is the quickest way to feel the contrast.
Crowds and berthing
The south is busier and pricier in season, a victim of its own weather. La Trinite-sur-Mer is the sailing capital of the region and the Morbihan in August can feel like the whole of France went afloat at once. Visitor berths fill, and the popular anchorages off Belle-Ile need an early arrival.
The north stays quieter. Even in high summer you find space at Saint-Quay-Portrieux or in the Trieux river, and the marina rates tend to sit at the lower end of the French range, roughly 30 to 50 euros a night for a 10 to 12 metre boat against the busier southern ports. If you value an empty anchorage over a guaranteed tan, the north delivers.
Anchorages and where you spend the night
The two coasts also differ in how you pass your evenings, which matters more than people expect.
The north rewards the patient anchorer. The drying bays behind the headlands, the pools in the Trieux and Jaudy rivers, the spots tucked among the pink granite, these are anchorages you reach by careful pilotage and often share with nobody. Many dry, so you either pick a spot with enough water at low springs or you settle on the bottom deliberately, legs out, and wait for the tide. It is a quieter, wilder style of cruising that suits a self-sufficient boat.
The south is built for easy nights. The Morbihan, the lee of Belle-Ile, the lagoon of the Glenan, these are sheltered, sandy and forgiving, and there are marinas everywhere when you want a shower and a restaurant. The trade is company: in August the best southern anchorages fill early, so you arrive in the afternoon rather than the evening. If keeping the berthing bill down matters, the calculus of anchoring vs marina-hopping on cost plays out very differently on the two coasts, with the north far easier on the wallet.
Getting there
Geography quietly nudges the choice too.
The north is the natural landfall for a UK boat. L'Aberwrac'h, Roscoff, Saint-Malo and the Channel Islands route put you on the north coast after a single Channel hop, and you can cruise for a fortnight without ever rounding the corner. The south sits beyond the tidal gates of the Chenal du Four and the Raz de Sein, so reaching it means committing to those passages and the open run down the Atlantic side.
That extra effort is exactly why the south feels like a reward. You earn it, and it pays you back in sunshine.
Who each coast suits
After several seasons split between them, this is how I sort it.
- Choose the north if you love technical pilotage, want empty anchorages, are coming straight from the UK, and do not mind cooler grey spells.
- Choose the south if you want sunshine, warm swimming, island-hopping with short passages, and a forgiving ground for a family or mixed crew.
- If you have a full season, do both. Cruise the north on the way down, time the Chenal du Four and Raz de Sein right, and spend high summer in the south. Many cruisers extend the trip into the wider Atlantic France vs the Med decision once they are this far south.
Food, harbours and life ashore
Brittany feeds you well wherever you land, but the character of the ports differs.
The north gives you working harbours with deep roots. Saint-Malo behind its ramparts, the oyster beds of Cancale, the fishing port of Paimpol, Roscoff at the head of its bay. The seafood is superb and the prices honest, and the towns feel lived-in rather than dressed for tourists. The walled town of Saint-Malo seen from the water at high tide is one of the great approaches in France.
The south leans more towards the sailing crowd and the summer visitor. La Trinite-sur-Mer hums with regatta culture, Vannes sits at the head of its medieval gulf behind a lock, Concarneau's walled old town rises straight from the harbour, and the oyster bars of the Morbihan are an institution. It is livelier and a touch more polished, and in high season noticeably busier. Neither coast disappoints at the table, but the north feels more like a fishing country you happen to be sailing through, and the south more like a holiday coast that happens to be Breton.
My honest preference
I learned to sail Brittany on the north coast and I am glad I did, because the pilotage made me a sharper navigator and the empty rivers are unforgettable. But when I want the holiday rather than the apprenticeship, I point the bow south. The light in the Morbihan on a July evening, the run out to the Glenan with the water turning Caribbean blue, that is the Brittany I come back for. Pick the north for the seamanship and the solitude, the south for the sun and the islands, and if you possibly can, give yourself the time to taste both.
