Northern Reefs is an advanced diving destination in Sudan built around remote offshore structures and a remarkable concentration of shark encounters. Walls, pinnacles, drift dives and wrecks define the site mix, with all diving done by boat. The two sub-areas, Angarosh and Merlo and Mesharifa and Mukawwar, anchor different reef systems, each drawing Scalloped Hammerhead, Tiger Shark, Grey Reef Shark and Silvertip Shark in numbers that are observed consistently across the region. Bluestriped Snapper, Grunt and Soldierfish fill the mid-water, while the Blue Belt wreck and Sha'ab Su'adi add overhead environments to the deep reef experience.
2 areas
Monthly water temperature across Northern Reefs's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water is at its coolest in February and March, rising steadily through summer to its warmest in August and September. The best-months data points strongly toward October through March as the prime window, when conditions are most settled and visibility is at its finest. Summer months bring peak warmth but are rated less favourably, likely reflecting stronger winds and reduced visibility on these exposed offshore structures.
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Water temperature around Northern Reefs ranges from about 25°C in February to 32°C in August, based on satellite sea-temperature data for its dive sites.
In the warm season (about 32°C) a rash guard or 3mm shorty is comfortable in Northern Reefs; in the coldest months (about 25°C) step up to a 3mm full suit.
Fin maps 10 sites in Northern Reefs (10 scuba diving sites), organised into 2 areas.
Northern Reefs has one of the most varied shark assemblages in Sudan. Scalloped Hammerhead, Tiger Shark, Grey Reef Shark, Silvertip Shark and Whale Shark are all observed across the region, with Grey Reef Shark and Silvertip Shark recorded as common at the majority of sites. Whitetip Reef Shark is also present at a smaller number of sites.
The vast majority of sites in Northern Reefs are rated advanced, featuring deep walls, strong drift conditions, overhead environments and significant depths. Gota Shambaia is the one exception, a shallow reef suited to beginners. Anyone planning to dive sites such as Angarosh Reef, Abington Reef or the Blue Belt wreck should have solid experience with deep diving and current.
Angarosh and Merlo holds more sites and includes the signature Angarosh Reef, known for its deep wall and shark activity. Mesharifa and Mukawwar is a smaller cluster offering a different reef system further along the coast. Both sub-areas are accessed by boat and share the region's advanced character.
The region combines reef walls, pinnacles, drift sites, caves and wrecks, almost all reached by liveaboard or day-boat from offshore. The Blue Belt and Sha'ab Su'adi provide wreck diving with overhead environments, while Abington Reef and Qita El Banna offer dramatic vertical topography with strong pelagic life. All sites are boat-entry with no shore diving recorded in the region.
