The Inishowen Peninsula sits where Lough Foyle meets the open Atlantic, giving divers a mix of reef, seagrass, and wreck sites accessible from the shore. Currents and surf are a regular factor, so conditions vary through the year. The three sites in our database, Magilligan Point, Stroove Beach, and Kinnagoe Bay, suit beginners and intermediate divers, with depths staying shallow. Kinnagoe Bay is notable for its association with the Spanish Armada wreck La Trinidad Valencera, while Stroove Beach offers kelp-covered rocky reef near its lighthouse headland. Water temperatures are cold for much of the year, warming only modestly in late summer, so a drysuit or thick wetsuit is advisable. The broader County Donegal coastline is recognised for a high concentration of historical shipwrecks, including U-boats.
Monthly water temperature across Inishowen Peninsula's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperature stays around nine degrees through winter and spring, rising to its warmest in late summer. That range demands a drysuit or a substantial wetsuit for comfortable diving at any time of year. Conditions at all three sites involve moderate currents and surf, so divers should check forecasts before entry.
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Water temperature around Inishowen Peninsula ranges from about 9°C in January to 15°C in August, based on satellite sea-temperature data for its dive sites.
In the warm season (about 15°C) a 7mm or semi-dry suit is comfortable in Inishowen Peninsula; in the coldest months (about 9°C) step up to a drysuit.
Fin maps 3 sites in Inishowen Peninsula (1 scuba diving sites and 2 snorkelling spots).
3 more sites to explore
