Watamu Beach curves around a small headland in Kilifi County on Kenya's Indian Ocean coast, about 15 km south of Malindi and roughly 105 km north of Mombasa. Its fine white sand gives way, some 300 metres offshore, to a coral reef system that UNESCO recognised as a Biosphere Reserve in 1979 — a year after the Kenyan government had already made it one of the country's first marine national parks, in 1968.
Managed by the Kenya Wildlife Service alongside the Watamu Marine Association, the park protects around 110 species of stony coral and close to 600 fish species, plus occasional whale sharks, manta rays, octopus and barracuda in deeper water. Sea temperatures range from 20°C (June–November) to 30°C (December–May), which makes the warmer months the busiest for diving and snorkelling. Three sea turtle species — green, hawksbill and olive ridley — nest on the main beach, which has reached a 99% viable nesting rate thanks to a turtle-watch programme that pays local fishermen to release rather than catch the animals. A coral bleaching event between 1997 and 1998 badly damaged the reef, and recovery has been slower than the regional average along the African coast.
Archaeological evidence points to occupation at Watamu since the 13th century, linked to the Bajuni people, whose origins trace to intermarriage between the local Giriama and Arab traders. A short drive from the beach lie the Gedi Ruins, a walled Swahili town covering about 18 hectares that was first settled around the 11th century, peaked at roughly 2,500 inhabitants in the 15th–16th centuries, and was abandoned in the mid-17th century — attributed by researchers to Portuguese interference, a falling water table, and raids and migration. Two mosques without minarets, a palace and pillar tombs (one dated to 1399) still stand on site. The ruins have been administered by the National Museums of Kenya since 1969 and were inscribed in July 2024 as Kenya's eighth UNESCO World Heritage Site.
The nearest airport is Malindi International Airport (MYD), about 15 km away, with daily domestic flights on Safarilink and Skyward Express to Nairobi-Wilson and Lamu, and on Jambojet to Jomo Kenyatta International; Mombasa's Moi International Airport is roughly 105 km to the south. Like the rest of the Kenyan coast, Watamu has two distinct seasons: the warmer water from December to May suits diving, while the cooler months from June to November bring stronger winds favoured by kitesurfers.
Further south, in Kwale County, Diani Beach follows the same shallow fringing-reef pattern, and it's there that snorkelling the Diani reef is offered — a useful reference for travellers after a Watamu-like experience, even though it's over 100 km away along the same coastline.
Watamu Marine National Park was established in 1968 and recognised by UNESCO as a Biosphere Reserve in 1979.
Yes — three species (green, hawksbill and olive ridley) nest on the main beach, part of a monitoring programme run with local fishermen.
Malindi International Airport (MYD), about 15 km away, with daily flights to Nairobi and Lamu.
Yes — they're a short drive away and became a UNESCO World Heritage Site in 2024, with Swahili mosques, a palace and pillar tombs from the 15th–17th centuries.
Real historical monthly sea temperature averages.