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A-Z African Marine Life Event Calendar • JENMAN African Safaris
Massive groups of snappers and groupers gather on reef ledges to spawn. Peak activity is linked to lunar cycles, with hundreds of fish forming dense clouds. Divers witness spectacular underwater displays as these predators chase, mate, and release eggs into the water column.
South Africa
Mafia Island
Tanzania
Bazaruto
Mozambique
Malindi- Watamu
Kenya
Anchovies have their own seasonal offshore and inshore movements in West Africa. Ecologically similar to sardines but a distinct species in a different region.
West Africa
Occasionally, tiny plankton light up the sea at night, creating magical, glowing waves. Best viewed on warm, calm evenings when the plankton density peaks. Each movement stirs sparkling trails, enchanting snorkelers, divers, and beachwalkers.
Mozambique
Sodwana Bay
South Africa
Saint Helena Island
Saint Helena Island sightings are rare
Sleek Bryde’s whales cruise coastal waters, often feeding near the surface. Pods can be spotted year-round but are most visible during seasonal upwellings. They leap and tail-slap, offering dramatic photo opportunities.
Sodwana Bay
South Africa
Seychelles
Powerful and curious, bull sharks patrol coastal reefs and estuaries. They are most active in warm, shallow waters where visibility is high. Encounters provide adrenaline-packed diving experiences in a controlled environment.
South Africa
Tofo
Mozambique
Zanzibar
Tanzania
Mozambique may extend to June
Ancient and mysterious, coelacanths dwell in deep underwater caves. Rare and nocturnal, they appear in isolated pockets off Madagascar. Sightings are exceptional, rewarding those seeking a glimpse of living fossils.
Madagascar
Knysna
South Africa
Rare and deep-water
Coral colonies release eggs and sperm simultaneously, turning reefs into clouds of life. The spectacle is brief but intense, attracting predators and divers alike. Timing is tied to water temperature and the full moon.
South Africa
Bazaruto & Quirimbas
Mozambique
Seychelles
Seychelles peak: November–December
Elegant devil rays soar through warm coastal waters in large, synchronized groups. Divers often spot them gliding effortlessly over cleaning stations and reefs. The acrobatic leaps and slow rotations are mesmerizing.
Mozambique
Nosy Be
Madagascar
Nosy Be may also see rays May–June
Shy and gentle, dugongs graze seagrass beds in shallow lagoons. They surface to breathe, often in small groups. Spotting these quiet marine mammals rewards those who venture into protected coastal habitats.
Mozambique
Mafia Island
Tanzania
Seychelles
Best May–November
Mozambique sightings are rare
Huge wingspans ripple through the water as eagle and mobula rays glide in synchrony. Seasonal aggregations create breathtaking underwater formations, perfect for divers and snorkelers.
Tanzania
Bazaruto
Mozambique
Seychelles
Eagle rays are migratory and not consistently present in one location.
Flying fish leap above waves in dazzling numbers, especially at dusk. Predators follow, creating a dramatic aerial chase. Coastal stretches of East Africa and Madagascar host the most prolific events.
South Africa
Quirimbas
Mozambique
East coast
Madagascar
Great whites patrol offshore reefs and kelp beds. Predatory displays include breaching, tail-slapping, and stalking seal colonies. Peak season sees predictable activity, ideal for cage diving adventures.
South Africa
Saint Helena Island
Very rare: Occasional sightings only
False bay sightings have decreased due to the appearance of killer whales.
Large schools of scalloped hammerheads patrol deep drop-offs. They form tight, swirling formations during their seasonal migrations. Observing their precision movements is a highlight for pelagic divers.
South Africa
Pemba Island
Tanzania
Seychelles
Humpbacks travel thousands of kilometers to breeding grounds. They breach, slap tails, and sing complex songs while protecting calves. Coastal lagoons and islands provide prime vantage points for whale watchers. Perfect to watch from Île Sainte-Marie’s sandy beaches.
Madagascar
Tofo
Mozambique
Sodwana Bay
South Africa
Madagascar peak: June–September
Playful dolphins leap and surf coastal waves in large pods. Their acrobatic displays and social interactions delight snorkelers, kayakers, and observers on boats. Year-round presence ensures frequent sightings.
South Africa
Mafia Island
Tanzania
Seychelles
Peak November–March
(Seasonal Plankton Blooms)
Swarms of jellyfish float gracefully through nutrient-rich waters. Colors range from transparent to vibrant, moving in unison with currents. Caution is advised as some species can sting.
South Africa
Bazaruto
Mozambique
Note: Irukandji jellyfish season November–March in South Africa
Powerful and social, these apex predators hunt in coordinated pods. Rare sightings off Saint Helena and the African coast offer dramatic glimpses of breaching and tail-slapping behavior.
Cape Town
Mozambique Channel
. False bay sightings are recent and unpredictable.
Massive leatherbacks haul onto beaches to lay eggs, returning year after year. Tiny hatchlings emerge at night and scurry to the sea. Coastal West Africa and Madagascar host some of the most important nesting sites.
South Africa
Nosy Iranja
Madagascar
Gabon
Senegal
Hatching: January–March
Mantas glide to reef cleaning stations, allowing small fish to remove parasites. Large gatherings form during peak season, showcasing graceful underwater choreography. Divers and snorkelers enjoy uninterrupted views of these giants.
Mozambique
Nosy Be
Madagascar
Diani & Malindi- Watamu
Kenya
Some Madagascar/Kenya sightings may extend to May
Humphead wrasses gather on reef edges to breed. Vibrant males display bright patterns while females release eggs into the current. Aggregations are brief but visually spectacular.
South Africa
Mafia Island
Tanzania
Seychelles
Octopuses and cuttlefish court and lay eggs in shallow reef crevices. Their displays include color changes, arm movements, and camouflage. South Africa and Madagascar host some of the most accessible events.
Mozambique
Sodwana Bay
South Africa
Madagascar
South Africa also May–July for cuttlefish
Sperm whales cruise deep offshore waters hunting squid. Large pods surface to breathe in dramatic sequences. Observers from boats or pelagic trips can glimpse their massive tails and heads breaking the surface.
Rodrigues
Seychelles
Mozambique Channel
Saint Helena Island
African penguins nest in burrows and rocky sites. Seabird colonies host large numbers of species, from terns to frigatebirds. Breeding peaks vary but visiting colonies provides dynamic wildlife observation.
African Penguins
Seabird colonies
West Africa
Breeding peaks vary by species
Reef fish form tight groups during spawning, with bright colors signaling reproductive readiness. Observers witness intricate behaviors over coral gardens. Spawning is brief, seasonal, and highly photogenic.
South Africa
Bazaruto
Mozambique
Rare outside main reef areas
Shy but imposing, sand tiger sharks congregate near reefs and wrecks. Aggregations are seasonal, and they often hover in mid-water, allowing divers to observe with minimal disturbance.
South Africa
Mozambique (sporadic)
South African sardines migrate along the southeast coast with seasonal upwelling. The iconic ‘Sardine Run’ attracts sharks, dolphins, whales, and birds.
South Africa
These whales calve and mate close to shore. They are approachable from vantage points like cliffs and boats, performing breeches and tail slaps. Peak season coincides with coastal calm waters. If you’re lucky you may even see migrating humpback whales.
South Africa
Spinner dolphins leap and spin above the waves in large pods. Their playful interactions and social acrobatics are visible year-round, with peak activity in warmer months.
Madagascar
Mafia Island
Tanzania
Seychelles
Best Nov–Mar
Tiny hatchlings emerge and race to the sea, mainly at night.
South Africa
(Green & Hawksbill)
Female turtles haul ashore to lay eggs on sandy beaches.
Madagascar
Nosy Iranja
Madagascar
Masoala National Park
Madagascar
Mafia Island
Tanzania
Senegal & Gabon notable for Hawksbill
Nutrient-rich upwellings fuel explosive growth of plankton and krill. This supports whales, seabirds, and predatory fish. Coastal regions of South Africa and Namibia are most productive.
South Africa
Benguela Current
Namibia & West South Africa
Gentle giants filter-feed in tropical waters. Sightings are predictable near reef drop-offs, attracting snorkelers and divers eager to swim alongside these slow-moving giants.
Mozambique
Mafia Island
Tanzania
Nosy Be
Madagascar
North Coast
Kenya
Colorful reef fish gather in tight aggregations to spawn. Movements and patterns are highly coordinated, offering divers close-up views of reef reproductive behaviour.
South Africa
Bazaruto
Mozambique
Mnemba Atoll
Tanzania
Brightly colored nudibranchs and other small reef invertebrates are most visible during peak months. Microhabitats teem with life, rewarding careful observation and underwater photography.
South Africa
Nosy Be
Madagascar
Tuna and billfish surge through open water in predictable seasonal runs. Sport fishermen and marine observers witness thrilling surface breaks and predatory chases.
Tanzania
Watamu
Kenya
Saint Helena Island
Sights are sporadic
(Stegostoma fasciatum)
Zebra sharks rest in shallow reef crevices by day and become active at night. Their patterned bodies and gentle nature make them favorites among divers exploring Mozambique and South Africa.
Mozambique
Sodwana Bay
South Africa
