Diving in the Seychelles in July

Conditions in July

July in the Seychelles brings a unique set of conditions for divers, primarily influenced by the southeast monsoon. This means you can expect cooler water temperatures and potentially choppier surface conditions, especially in exposed areas. The average water temperature hovers around 25-27°C (77-81°F), which, while still comfortable, might warrant a slightly thicker wetsuit for some – a 3mm shorty or full suit is generally ideal. Above the surface, expect average air temperatures of around 27°C (81°F), often accompanied by brisk winds. These winds can kick up swells, making certain dive sites or crossings a bit bouncy. However, this monsoonal shift also brings with it significant benefits for marine life, which we'll get into shortly.

Visibility during July can vary; while some areas enjoy excellent clarity of 20-30 meters, the increased plankton brought by the currents might reduce it to 10-15 meters in others. Don't be disheartened by this, as this nutrient-rich water is precisely what attracts the larger pelagic species. Currents can also be stronger during this period, particularly around exposed pinnacles and channels. This makes July more suitable for experienced divers who are comfortable with drift diving and can handle varied conditions. If you're a beginner, don't worry, there are still plenty of sheltered bays and calmer sites available, but your dive operator will likely guide you towards those.

What you will see

July is prime time for pelagic action in the Seychelles, and it’s truly a sight to behold. The increased currents and cooler, nutrient-rich waters act like a magnet for larger marine life. You’re in a fantastic position to encounter an array of sharks, from the graceful reef sharks – grey reef sharks, whitetip reef sharks, and silvertips – patrolling the outer reefs, to the more elusive oceanic species that might make an appearance further offshore. Keep your eyes peeled for powerful barracudas schooling in impressive formations and various species of jacks and trevallies, often hunting vigorously. These are fast-paced dives where the action can happen in the blink of an eye, so always be ready for a surprise.

While humpback whales aren't typically a dive sighting, July often falls within the tail end of their migration season around the Seychelles. While you won't be diving with them, you might be lucky enough to spot them from the surface during your boat transfers or surface intervals – a truly unforgettable bonus. Beyond the large pelagics, the Seychelles reefs teem with vibrant smaller marine life. Expect to see colorful parrotfish, triggerfish, angelfish, and snappers darting among the corals. Macro enthusiasts will still find plenty to marvel at, including nudibranchs, various types of shrimps, and intricate pipefish tucked away in the nooks and crannies of the reef. The beauty of Seychelles diving is its diversity, and even in conditions that favor the big stuff, the small wonders are always present.

Top dive sites this month

For July, the more exposed dive sites tend to offer the most thrilling encounters due to the stronger currents attracting pelagic life. One essential dive spot to target is Ennerdale Wreck. This British oil tanker, sunk in 1970, lies at a depth accessible to recreational divers and is a magnet for large fish like groupers, snappers, and barracudas, often with pelagic visitors circling the structure. Its condition as an artificial reef also provides shelter and a food source for an incredible variety of marine species.

Another must-visit destination is the Shark Bank, located off Mahé. As its name suggests, this is a renowned location for encountering various shark species and large schooling fish, especially when the currents are running. The underwater topography here consists of granite boulders and pinnacles, creating excellent hiding spots and hunting grounds. Further afield, but well worth the journey, are the dive sites around the granitic islands of Silhouette Island. Sites like Grand Barbe offer drift dives along diverse coral gardens where you can often spot eagle rays, reef sharks, and large schools of fusiliers. Due to the potentially stronger currents in July, these sites often provide the most dynamic and exciting diving experiences, making them perfect for those seeking adrenaline and big animal encounters.

Practical tips for your trip

Given the cooler water temperatures and potential for stronger currents in July, a 3mm full wetsuit or even a 5mm suit for those who get cold easily is highly recommended. You’ll be glad for the extra warmth on longer dives or during repeated ascents. This month definitely leans towards more experienced divers who are comfortable with drift diving and can handle varying conditions. If you're a beginner, don't worry, but manage your expectations for certain exposed sites; your liveaboard or dive operator will tailor the itinerary to ensure safe and enjoyable diving in more sheltered areas if needed.

Liveaboard availability can still be good in July, though booking in advance is always wise, especially if you have a specific boat in mind. The unique conditions this month attract a dedicated crowd of divers. Beyond your dive gear, pack layers of clothing for topside – light long sleeves for sun protection, a windbreaker for boat rides, and comfortable casual wear for evenings. Don’t forget motion sickness medication if you’re prone to seasickness, as the surface conditions can be choppy. Finally, remember to bring an open mind and a spirit of adventure; Seychelles in July offers some of the most thrilling and rewarding diving experiences you can find, especially if you’re chasing big animal encounters. And make sure your dive computer is up-to-date and you have practiced your SMB deployment – safety first!