Saint-Leu's diving is built around a varied reef system that steps through almost every site type: coral plateaux, caves, walls, drift dives, wrecks and artificial reefs. Beginner-friendly sites such as Maison verte and Le Banc Doré sit alongside demanding walls at Le Nez du Pharaon and Pointe au Sel, and the wreck Antonio Lorenzo offers a compelling deep objective. The fish life leans heavily on reef species, with Turkey Moray, Snowflake Moray, Blackspotted Pufferfish, Lagoon Triggerfish and Green Sea Turtle among the signature encounters. All sites are boat-access, and three local operators serve the area.
Monthly water temperature across Saint-Leu's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperatures follow a clear seasonal arc, peaking through the early months of the year and cooling noticeably from June through September. The best-months data strongly favours October and June, suggesting that the shoulder periods between the warmer and cooler phases offer particularly good conditions. The cooler austral winter months can bring improved visibility along the exposed walls and drop-offs.
7 more sites to explore
Water temperature around Saint-Leu ranges from about 24°C in July to 28°C in February, based on satellite sea-temperature data for its dive sites.
In the warm season (about 28°C) a rash guard or 3mm shorty is comfortable in Saint-Leu; in the coldest months (about 24°C) step up to a 3mm full suit.
Fin maps 19 sites in Saint-Leu (18 scuba diving sites and 2 snorkelling spots, with some suited to both).
Across Saint-Leu's dive sites, June and October are most often reported as the best months to visit.
Reef fish dominate, with Blackspotted Pufferfish, Lagoon Triggerfish, Moorish Idol, Raccoon Butterflyfish and Desjardin's Sailfin Tang observed consistently across sites. The Turkey Moray and Snowflake Moray are signature encounters, found reliably in the reef structure. Green Sea Turtle, Spotfin Lionfish, Titan Triggerfish and the unusual Oriental Flying Gurnard round out the highlights.
A good number of sites are rated for beginners, including Maison verte, Les Arches, Le Banc Doré, Bosy's canyon and Le Jardin des Kiosques. These sites offer shallow to moderate depths and straightforward reef topography. Intermediate and advanced divers are also well served by deeper walls, caves and the Antonio Lorenzo wreck.
All dive sites in Saint-Leu are accessed by boat. Three operators serve the area: Bleu Océan, Aquabulle Plongée and Abyss Plongée. Boat access means sites can be reached efficiently, and operators typically run guided groups to sites suited to the divers on board.
The shallower coral plateaux such as Le Banc Doré and Sec a zitte are well suited to relaxed reef dives with plenty of fish life. The outer-slope walls at Pointe au Sel and Le Nez du Pharaon offer dramatic vertical terrain for experienced divers. Cave enthusiasts will find variety at La grotte à Nono and L'Arche de Noel, while the Antonio Lorenzo wreck provides a distinct experience on a flat sandy seabed at depth.