Reefwander

Atlantic · Portugal

Azores — São Miguel

The WWII Liberty ship Dori in 21m, minutes off Ponta Delgada

Diving on São Miguel runs from two harbours. The Liberty ship Dori lies 800 metres off Ponta Delgada in 9 to 21 metres, five minutes from the marina there, and is the only Azorean wreck on the tourism board's top-ten list. From Vila Franca do Campo, further east, the crater bay of Vila Franca islet and the arches of Caloura are minutes away. The outer reef at Lourenços rises to 24 metres over a 60-metre floor, and devil rays and jacks pass it through the summer.

About diving in Azores — São Miguel

São Miguel dives from two harbours. Best Spot works from a kiosk on the Ponta Delgada marina and Açordiving from the Clube Naval in the same town; Azores Sub and Espírito Azul are listed at the Vila Franca do Campo marina, further east. The official site pages quote a boat time from each, and the gap is large. The Dori is five minutes from Ponta Delgada and a house reef in 4 to 20 metres is dived from the shore nearby, but Arcos da Caloura is 30 minutes from that marina against 15 from Vila Franca, Ilhéu de Vila Franca is 45 against 5, and the outer reef at Lourenços is 50 minutes and 21 km out (13 miles). Açordiving sells the day as a two-dive morning or afternoon session.

The rock is volcanic and repeats a few forms. Walls drop away fast, arches and lava tubes run back into the reef with several passages and entrances, and boulder ground is broken by sand. Morro das Capelas on the north coast is a wall that reaches 35 metres, Baixa do Espelho rises to 7 metres above a 35-metre floor, and off São Roque islet a catalogued collection of historic anchors has been laid as an artificial reef. Dusky groupers, several moray species, common octopus and ornate and ballan wrasse hold on the stone, stingrays lie on the sand, and white trevally, Almaco jacks and yellowmouth barracuda work the reef edges at Lourenços and the islet.

It suits divers who want a varied coastal week with a real wreck in it, on an island with daily nonstop flights, a hyperbaric chamber at the Divino Espírito Santo hospital in Ponta Delgada and enough above water to fill the afternoons. It is not the archipelago's big-animal address. Divers whose trip hinges on blue-water encounters with mobula rays and sharks over offshore seamounts should look at Pico and Faial, separate islands with their own flights and their own operators. São Miguel centres do sell trips to the Formigas islets and the Dollabarat seamount some 64 km offshore (40 miles), but that is sold apart from the island's own diving.

Best time to dive Azores — São Miguel

Azores — São Miguel season rating, sea surface temperature, daytime high and rainfall by month, 2011–2025 averages
JanFebMarAprMayJunJulAugSepOctNovDec
SeasonFairFairFairFairGoodPrimePrimePrimePrimeGoodFairFair
Sea surface17°C63°F16°C61°F16°C61°F17°C63°F18°C64°F20°C68°F22°C72°F23°C73°F23°C73°F22°C72°F19°C66°F18°C64°F
Daytime high18°C64°F18°C64°F18°C64°F18°C64°F20°C68°F22°C72°F24°C75°F25°C77°F25°C77°F23°C73°F21°C70°F19°C66°F
Rain64 mm2.5 in44 mm1.7 in40 mm1.6 in40 mm1.6 in41 mm1.6 in27 mm1.1 in19 mm0.7 in26 mm1.0 in48 mm1.9 in78 mm3.1 in66 mm2.6 in89 mm3.5 in
Azores — São Miguel season rating, sea surface temperature, daytime high and rainfall by month, January to June, 2011–2025 averages
JanFebMarAprMayJun
FairFairFairFairGoodPrime
Sea surface
17°C63°F16°C61°F16°C61°F17°C63°F18°C64°F20°C68°F
Daytime high
18°C64°F18°C64°F18°C64°F18°C64°F20°C68°F22°C72°F
Rain
64 mm2.5 in44 mm1.7 in40 mm1.6 in40 mm1.6 in41 mm1.6 in27 mm1.1 in
Azores — São Miguel season rating, sea surface temperature, daytime high and rainfall by month, July to December, 2011–2025 averages
JulAugSepOctNovDec
PrimePrimePrimeGoodFairFair
Sea surface
22°C72°F23°C73°F23°C73°F22°C72°F19°C66°F18°C64°F
Daytime high
24°C75°F25°C77°F25°C77°F23°C73°F21°C70°F19°C66°F
Rain
19 mm0.7 in26 mm1.0 in48 mm1.9 in78 mm3.1 in66 mm2.6 in89 mm3.5 in

2011–2025 averages. Sea surface: NOAA Coral Reef Watch, measured at the surface, so deeper water can run colder. Daytime high and rain: NASA POWER.

June to September is the settled season and August into October the clearest water; diving carries on through winter in a 7-10mm or dry suit when swell allows.

Best months: June, July, August, September

Azores water temperature and weather by month

The sea surface runs from 16 °C (61 °F) in March to 23 °C (73 °F) in August. Most rain falls from October to January, peaking at about 90 mm (3.5 in) in December; June to August are the driest. Daytime highs reach 25 °C (77 °F) in August and drop to 18 °C (64 °F) in February. The coldest water here is about 16 °C (61 °F), so pack a 7 mm suit with a hood, or a semi-dry.

Dive types & marine life

Residents carry the diving: dusky groupers, moray eels, common octopus, wrasse and schools of Moroccan white seabream on the reefs and around the Dori, with stingrays on the sand and dozens of nudibranch species on Caloura's cave ceiling. Devil rays are a summer visitor at Lourenços alongside Almaco jacks, white trevally and yellowmouth barracuda, so they are seasonal odds rather than a fixture.

  • Wreck
  • Reef
  • Wall
  • Cave & cavern
  • Drift
  • Mobula rays
  • Groupers
  • Octopus & cuttlefish
  • Stingrays
  • Barracuda
  • Trevally & jacks
  • Nudibranchs
  • Reef fish swarms

Best dive sites in Azores — São Miguel

Four rock arches at 16 metres in a sheltered bay

5–20 mintermediate

A volcanic arch to swim through on a reef topping out at 7 m

7–35 mintermediate

Wreck

A 130-metre Liberty ship broken open in shallow water

12–22 mintermediate

Pinnacle

A pinnacle topping out at 26 metres with walls to 45

24–60 madvanced

Two parallel walls sheltering a reef from 5 to 18 m

5–18 mintermediate

Pinnacle

The pinnacle left by the 1811 eruption, summit at 22 m

to 22 mintermediate

Volcanic arches in 7 to 19 m, named for a chocolate factory

7–19 mintermediate
  • Luso Wreck

    Scattered 1883 wreck at 14-18m with propeller and boilers exposed; allows drift diving

How to get to Azores — São Miguel

João Paulo II airport at Ponta Delgada takes year-round nonstops from Lisbon, Porto, New York, Barcelona and Paris, with seasonal routes from Boston, Montreal and Toronto, plus flights to the other islands; seasonal Atlanticoline ferries serve Santa Maria and Terceira. Dive centres sit at the Ponta Delgada marina and, further east, at Vila Franca do Campo.

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