Diving in Turkey in September

Conditions in September

Diving in Turkey during September is an absolute dream, truly a sweet spot before the chill sets in. You're looking at fabulous weather topside – think warm, sunny days with average temperatures hovering around 25-30°C (77-86°F), perfect for lounging on deck between dives. The Mediterranean and Aegean Seas are at their most inviting; the summer heat has thoroughly warmed the water, but the crowds of high season have thinned out. Expect comfortable water temperatures ranging from a balmy 25-27°C (77-81°F), meaning a 3mm shorty or even just a rash guard might suffice for longer dives if you’re feeling intrepid, though a 5mm full suit will give you maximum comfort. Sea conditions are generally calm and cooperative, making for smooth sailing on your liveaboard and easy entries and exits at dive sites.

Visibility in Turkish waters in September is often nothing short of spectacular. With fewer plankton blooms transitioning from the summer and stable weather conditions, you can frequently enjoy crystal-clear waters reaching depths of 20 to 30 meters, sometimes even more. Imagine being able to spot intricate details on wrecks or observe marine life from a distance with unparalleled clarity. Currents are typically mild to moderate, especially at popular dive sites and along the coast, which is fantastic for divers of all experience levels. While some drift dives can be exhilarating, most sites in September offer a relaxed pace, allowing you to thoroughly explore without battling strong flows. This combination of warm water, excellent visibility, and calm seas makes September an ideal time for underwater photography and simply soaking in the beauty of Turkey's submerged landscapes.

What you will see

September in Turkey is a fantastic time for a diverse array of marine life, as the warm waters still draw in a multitude of species. While Turkey isn't typically known for its big pelagic encounters like mantas or whale sharks – you won't find those here – you'll definitely come across a thriving ecosystem of Mediterranean and Aegean residents. Keep your eyes peeled for large schools of barracuda, often circling majestically around wrecks or rocky outcrops. You'll frequently spot various types of groupers, including dusky groupers, which are often quite curious. Expect to see colorful parrotfish, bream, and several species of wrasse darting through the vibrant seagrass beds.

For those who appreciate the smaller wonders, Turkey’s dive sites offer plenty of macro opportunities. You might discover fascinating nudibranchs, vibrant sponges, and an abundance of anemones with their resident shrimp and crabs. Octopus and cuttlefish are relatively common sightings, often camouflaging themselves expertly against the rocks. Green sea turtles are also frequently encountered, especially in specific areas, gliding gracefully through the water. While large sharks are not a regular feature in Turkish diving, you might occasionally spot a small, harmless dogfish. Instead, the focus here is on the rich biodiversity of the Mediterranean, offering a different kind of thrill with its historical wrecks and teeming reef life.

Top dive sites this month

September is prime time to explore some of Turkey's most iconic dive sites. The areas around Kaş are consistently excellent, and the Canyon and Neapolitan Reef offers an unforgettable experience. Here, you dive through a dramatic underwater canyon, often spotting barracuda and groupers, before emerging onto a vibrant reef teeming with life. The clear September waters make this site truly shine, especially with the stunning light penetration. Another must-visit in Kaş is the Dimitri Wreck. This cargo ship, intentionally sunk, lies at a comfortable depth and is completely encrusted with marine life, making it a fantastic playground for exploration and photography. With visibility at its peak, you'll be able to admire its structure and the myriad creatures that call it home.

Further along the coast, the dive sites near Fethiye and the surrounding Göcek Islands are also incredibly rewarding in September. The Cold Water Bay (Blue Cave) near Ölüdeniz offers a unique experience, combining a breathtaking cavern dive with crystal-clear waters. The light rays penetrating the cave are simply magical at this time of year. For those interested in historical sites, the underwater ruins near Kekova, often explored via a combination of diving and snorkeling trips, are fascinating. While not strictly a dive site for deep exploration, the Sunken City of Kekova offers incredible historical context and beautiful shallow diving. The overall calm sea conditions and warm water in September make accessing and enjoying these diverse sites a genuine pleasure.

Practical tips for your trip

Given the delightful water temperatures of 25-27°C (77-81°F) in September, a 3mm wetsuit should be perfectly adequate for most divers. If you tend to get cold easily or plan on doing multiple long dives, a 5mm full suit might offer a bit more comfort, but anything thicker is likely overkill. This month is particularly well-suited for both beginner and advanced divers. The generally calm conditions, good visibility, and mild currents create an inviting environment for those just starting out, while the diverse wrecks and vibrant reef systems offer plenty of exploration opportunities for more experienced enthusiasts. Photography enthusiasts will especially appreciate the excellent light and clarity.

Liveaboard availability in September is usually good, as the peak summer rush has subsided but the season is still in full swing. However, Turkey is gaining popularity as a dive destination, so it's always wise to book your Blue Rides liveaboard well in advance to secure your preferred vessel and itinerary. When packing, think light and summery clothes for topside, but remember a hat, sunglasses, and plenty of reef-safe sunscreen. A light jacket or sweater for evenings can be handy, though September nights are often warm. Always bring any personal diving equipment you prefer, but reputable liveaboards will have rental gear available. Be aware that while Turkish regulations ensure safe diving practices, it's always a good idea to research the specific dive center or liveaboard's safety protocols and ensure they meet international standards. Enjoy the rich history and stunning underwater world that Turkey offers in this perfect diving month!