Diving in Portugal (Azores) in August

Conditions in August

August in the Azores presents some of the most favourable diving conditions of the year, making it a prime time to explore these volcanic islands in the middle of the Atlantic. You can expect reliably warm air temperatures, typically ranging from 22-26°C (72-79°F), with plenty of sunshine. The sea state is generally calm, especially around the leeward sides of the islands, though the open Atlantic can always deliver a swell, particularly on transfer days between dive sites. Water temperatures are at their peak for the year, hovering comfortably between 22-25°C (72-77°F). This warmth extends throughout the water column, making for incredibly pleasant diving experiences without the need for excessively thick exposure suits.

Visibility during August is consistently excellent, often exceeding 20 meters (65 feet) and frequently reaching 30 meters (100 feet) or more on a good day. The pristine waters of the Azores, far from continental pollution, contribute significantly to this clarity. While strong currents are a defining feature of some Azorean dive sites – particularly those exposed to the open ocean where pelagic encounters are most common – August typically sees more predictable current patterns. Dive operators are highly experienced in planning dives around these conditions, ensuring your safety and maximising your chances of seeing the incredible marine life that thrives in these oceanic flows. Keep in mind that some of the most exhilarating encounters do happen in areas with more dynamic water movement.

What you will see

August is unequivocally the sweet spot for big animal encounters in the Azores, especially for those dreaming of pelagics. This month marks the peak of the season for mobula rays (often referred to as 'devil rays'), which aggregate in significant numbers around seamounts and offshore pinnacles. Witnessing these graceful creatures gliding effortlessly through the blue is a truly unforgettable experience. Blue sharks and mako sharks are also frequently sighted, drawn to the bountiful waters of the Azores. These magnificent predators are a highlight for many divers, offering thrilling encounters in their natural habitat. While shark diving here is typically done responsibly, it’s important to remember these are wild animals in the open ocean.

Beyond the headline-grabbing pelagics, the Azorean waters in August are teeming with other captivating marine life. Common dolphins and bottlenose dolphins are regular companions, often seen playing in the bow waves of boats or even during dives. You might also spot various species of whales, as August falls within the broader whale watching season. The volcanic reefs themselves are vibrant, home to schools of barracuda, groupers, moray eels, and diverse reef fish. For those with a keen eye for macro life, nudibranchs, colourful invertebrate species, and smaller crustaceans can be found tucked away in crevices and on the rocky substrate. The sheer biodiversity in August is impressive, offering something for every type of diver, from wide-angle enthusiasts to macro photographers.

Top dive sites this month

When diving in the Azores in August, certain sites truly shine due to the prevailing conditions and marine life aggregations. The Princess Alice Bank, located southwest of Faial Island, is arguably the most famous and a must-visit during this period. This seamount acts as a magnet for pelagic species, most notably large aggregations of mobula rays and often blue sharks. The vibrant ecosystem around the bank offers unparalleled open-ocean encounters. Another incredible location is the Condor Bank, an offshore seamount north of Faial, known for its strong currents and consistent sightings of blue sharks and mako sharks. These challenging yet rewarding dives offer a true taste of raw Atlantic diving.

Closer to the islands, the dive sites around Santa Maria Island are excellent choices. The Formigas Islets, an uninhabited rocky outcrop and marine reserve, offer stunning visibility and are prime for spotting various pelagics, including sharks, tuna, and even occasional manta rays. The Dollabarat Reef near Santa Maria, a submerged pinnacle, is another hotspot for marine life and strong currents, promising exciting encounters. For those seeking a mix of reef life and potential pelagic action without venturing too far offshore, the dive sites around São Miguel, like the Dori Wreck or the various caverns and archways, provide diverse underwater landscapes and a rich array of reef inhabitants, while still offering the chance for passing pelagics due to the island's oceanic location.

Practical tips for your trip

Given the comfortable water temperatures of 22-25°C (72-77°F) in August, a 5mm wetsuit is generally sufficient for most divers, perhaps with a hood or shorty if you’re prone to getting cold or plan on multiple dives a day. Some hardy individuals might even be comfortable in a 3mm suit. This month is fantastic for both experienced divers and those who are relatively new to colder water diving but comfortable with drift dives, as many amazing encounters happen in current-swept areas. However, some of the top pelagic sites like Princess Alice or Condor Bank are exposed and can involve significant currents and deeper profiles, making them more suitable for advanced divers with relevant experience.

While liveaboards are available in the Azores and offer the ultimate access to offshore banks like Princess Alice, they tend to book up very quickly for August. If you're planning a liveaboard trip, secure your booking well in advance – we’re talking 12-18 months ahead. Alternatively, land-based dive centres operate from most islands, offering daily boat trips. Regardless of whether you choose a liveaboard or land-based operation, ensure you pack light, breathable clothing for topside comfort. Bring a good reef-safe sunscreen, a wide-brimmed hat, and sunglasses. Don’t forget motion sickness medication if you’re susceptible, as some transfers to offshore sites can be lengthy and exposed. Finally, consider bringing a good underwater camera with a wide-angle lens – August is prime time for those epic big animal shots you’ve been dreaming of!