Can you swim in the sea in Cape Verde?

Why the sea here catches people out

Most people who are disappointed by the sea in Cape Verde stayed on the wrong side of an island. From November to March the trade wind blows hard from the north-east, and winter swell arrives from the north and north-west. The wind roughens the east-facing coasts, and the swell hits the north- and west-facing shores and headlands; Ponta Preta, on Sal's west side, is famous among surfers for exactly that reason. The calm water is in bays tucked away from both. That is why Santa Maria, on the south coast of Sal, can be calm on a morning when Kite Beach, a short taxi ride away, is white with chop.

The shape of the shore matters too. Sal, Boa Vista and Maio are flat and sandy, and their sheltered beaches shelve gently, so you can wade a long way out. The mountain islands, Santiago, Fogo, Santo Antão, São Nicolau and Brava, mostly have steep dark-sand or boulder beaches where waves break hard right at the water's edge. They are superb islands to walk on and poor ones for a casual dip.

If you remember one thing, make it this: swim in bays and in front of towns, and walk the wild beaches. A beach can look flat from the sand and still have a current running offshore a few metres out.

Where it is safe to swim, island by island

The table gives the overview; each island links to a guide with beach-by-beach detail.

Sal

Sal has one beach that is properly easy to swim from. Praia de Santa Maria faces south, away from the winter wind and swell, and stays shallow a long way out. Near the pier and in front of the hotels there are nearly always other people in the water, which is reassuring in itself. Murdeira Bay on the west coast is calmer still, but mostly rock underfoot. The east and north coasts are for looking at. Beach-by-beach detail is in the beaches of Sal.

Boa Vista

Boa Vista has more sand than any other island and fewer easy swims than its photos suggest. The bay at Sal Rei, sheltered by the islet offshore, and Praia de Cabral just south of town are the safest water. Praia de Chaves changes along its length, and the stretches in front of the resorts are usually the most protected. Santa Mónica is beautiful and often unsafe. Full detail: the beaches of Boa Vista.

The other islands

The town beach in Vila do Maio is sheltered and fine for a swim, while Maio's long empty beaches elsewhere have no facilities and can have currents. On Santiago, Tarrafal is the beach people travel for, and in Praia locals swim at Quebra Canela and Prainha. Mindelo has Laginha on its doorstep and the reef-sheltered lagoon at Baía das Gatas a short drive away. On Santo Antão, Fogo and Brava, stick to the rock pools. If sea swimming is a big part of your holiday, spend at least part of it on Sal, Boa Vista or São Vicente.

Beaches that look inviting but are not for swimming

Every place below is worth a visit. None of them is somewhere to go for an ordinary swim, and they are the spots where visitors most often misjudge the water.

Santa Mónica, Boa Vista. Kilometres of open Atlantic beach with no lifeguard, no shade and patchy phone signal. On a still day you can swim close in. On many days there is a shore break and a current, and you should not swim here alone.

Ponta Preta, Sal. It draws expert surfers and kitesurfers from abroad because the waves are big and powerful. The same shore break and undertow make it dangerous for swimmers.

Kite Beach and Costa Fragata, Sal. Shallow at Kite Beach, but choppy, windswept and full of fast-moving kites. Further along the east coast the currents are strong and nobody is around.

Varandinha, Curralinho and the east coast of Boa Vista. Cliffs, sea caves and the wreck of the Cabo Santa Maria, with unbroken Atlantic swell. Treat it as scenery.

Ponta do Sol, Santo Antão, and São Filipe, Fogo. Swimming off the headland at Ponta do Sol is unsafe; local people use rock pools instead. The black-sand beach below São Filipe has a heavy shore break and is for strong swimmers only, after checking locally.

When the sea is calmest, and how warm it is

From November to March the trade wind is at its strongest. The water is choppier everywhere, and the exposed north-, east- and west-facing coasts are at their roughest. Santa Maria and Sal Rei usually stay swimmable, but the wind makes getting out feel colder than the sea itself.

From May to October the wind eases and the sea is generally calmer, with two exceptions. Swell from the south occasionally reaches south-facing beaches, mostly between June and September, so even Santa Maria has days with a real shore break. And the short rainy season, roughly mid-August to mid-October, can bring storms and rough seas: Hurricane Fred crossed the islands at the turn of August and September 2015.

The day matters as much as the season. The wind usually picks up from late morning, so a beach that is glassy at nine can be choppy by three. For the calmest swim, go early.

The water itself is never cold by northern European standards, but in winter it is not tropical either. Around Sal it bottoms out at about 22°C from February to April and peaks at about 27°C in September and October.

Santa Maria, Sal. Long-term monthly averages: sea temperature from marine reanalysis, wind from ERA5 via Open-Meteo. The same figures are used in our month-by-month guides.

Lifeguards and beach flags

Lifeguard cover is patchy. Parts of the busiest resort beaches have lifeguards, and some hotels post their own beach staff and flags, but most of the coastline has nobody watching. Cape Verde's maritime authority, the Instituto Marítimo e Portuário (IMP), runs a beach-safety programme that tells people to use supervised beaches, and its own plan admits that many beaches still have no warning signs. A busy beach is not necessarily a watched one.

The UK government's travel advice for Cape Verde says to go into the water only where a lifeguard is on duty, and gives the meanings for the three main flags. You may occasionally see two others:

Note the yellow flag. Many guides describe it as "swim with care"; the meaning in the official advice for Cape Verde is stricter, and it matches the Portuguese system: you can paddle, but not swim. If in doubt, ask the lifeguard. And no flag at all is not the same as a green one. On an unsupervised beach, watch where local people swim (and where they don't), ask at your hotel or a beach bar, and stay in your depth if you are unsure.

Red flag at your hotel? What to do instead

It comes up again and again in traveller forums, mostly from people staying at resorts away from the most sheltered stretches: the flag is red day after day and the hotel beach is closed. It does not have to mean a week without a swim.

Before you book, ask the hotel directly whether its own beach is usually swimmable in the month you are travelling. The honest answer differs between resorts on the same beach, and hotel photos rarely show it. Our Boa Vista beaches and Sal beaches guides say which stretches are most sheltered.

Once you are there, try these, roughly in this order:

• Go early. The sea is often calmer first thing, before the wind builds, and the flag can change through the day.
• On Sal, walk or take a taxi to the stretch around the pier in Santa Maria, the most sheltered part of the beach. Travellers also report calmer pockets behind the stone breakwaters on parts of Santa Maria beach.
• On Boa Vista, head for the bay at Sal Rei and Praia de Cabral, or Praia do Estoril near town, which are sheltered when the resort beaches further south are not.
• Book a boat trip with a swim stop. Catamarans from Santa Maria and snorkelling boats from Sal Rei anchor in calm water away from the beach break.
• Float at Pedra de Lume or, when it is open, swim in the rock pool at Buracona on Sal.

And if the flag is red, the answer is no, however calm it looks from the sunbed. The flag is usually there because of what is happening a few metres out, not at the water's edge.

Currents: how to spot one and get out

Currents are the hazard that official travel advice for Cape Verde singles out. A rip current is a narrow channel of water flowing away from the beach. It does not pull you under, but it can carry a strong swimmer out faster than they can swim back.

You can often spot one from the beach: a gap in the line of breaking waves where the water looks deceptively calm, a strip of darker or rippled water, or foam and seaweed moving steadily out to sea.

If you are caught in one

• Don't swim straight back towards the beach against it.
• Float to save energy, raise an arm and shout for help.
• When you can, swim parallel to the shore until you are out of the pull, then come in at an angle.
• If someone else is in trouble, call for help and throw them something that floats rather than going in after them.

Emergency numbers in Cape Verde are 130 for an ambulance, 131 for the fire service and 132 for the police; the European 112 is not a reliable alternative here. Save them before you go to a remote beach, and tell someone where you are going, because phone signal is patchy away from the towns.

Swimming with children

A wave an adult barely notices can knock a toddler off their feet, so with children, choose the beach first and the hotel second. The easiest family swims are Santa Maria on Sal, which stays shallow a long way out, Praia de Cabral and the bay at Sal Rei on Boa Vista, the lagoon at Baía das Gatas and Laginha in Mindelo, and Tarrafal on Santiago.

Leave inflatables at home: the trade wind carries a lilo or rubber ring offshore surprisingly quickly. From January to May the sea is about 22–23°C, and most children start to feel the chill after half an hour, especially in the wind, so a rash vest or thin shorty wetsuit is worth packing. Ask hotel staff each morning whether the shore break is up, and keep small children within arm's reach even in calm, shallow water.

More on choosing an island and a resort: Cape Verde with kids.

Jellyfish, urchins and sharks

The Portuguese man o' war is the one sea creature worth knowing about. It is a blue, balloon-like floater rather than a true jellyfish, and its tentacles give a very painful sting. They drift in on wind and current from time to time, and visitors have reported them washed up on Cape Verde beaches. Don't touch one, even if it looks dead on the sand. If you are stung, get out of the water, lift off any tentacles without using bare fingers, rinse with seawater rather than fresh water, and get medical help for severe pain or any difficulty breathing.

On rocky entries, such as much of Murdeira Bay and the volcanic shores of the mountain islands, sea urchins are the more likely nuisance. Water shoes deal with them, and with the rough rock.

As for sharks: the ones most visitors see are juvenile lemon sharks in the shallow lagoon at Shark Bay on Sal, where people wade with guides. They are small and not considered dangerous to people. Official travel advice for Cape Verde talks about currents and waves, not sharks, which tells you where the real risk lies.

On Sal and Boa Vista, also keep clear of kite launch areas and watersports lanes. Riders move fast and cannot always stop.

Natural pools and boat swims

When the beaches are rough, there are other ways to get in the water.

Buracona, Sal: a large natural rock pool beside the Blue Eye, open only when the attendants judge the sea calm enough; swimming in the Blue Eye cave itself is not allowed. See Buracona and the Blue Eye.

Pedra de Lume, Sal: you float rather than swim in the salt crater, which is many times saltier than the sea. Keep your face out of the water. See Pedra de Lume.

Fajã d'Água, Brava, and Ponta da Salina, Fogo: lava pools beside the open ocean, swimmable when the sea is calm. At Fajã d'Água they fill at mid to high tide. See Fajã d'Água.

Boat trips: a catamaran from Santa Maria or a snorkelling trip from Sal Rei usually includes a swim stop in calm water away from the beach break. See boat trips and snorkelling.