Tyre tide times

Tyre — known in Arabic as Sour — is one of the oldest continuously inhabited cities in the world, founded by the Phoenicians and now a UNESCO World Heritage city 80 km south of Beirut. The city occupies a peninsula that was originally an island, connected to the mainland by a causeway built by Alexander the Great in 332 BCE to besiege it. The archaeological sites are extensive: Al-Mina (the southern site) has a colonnaded road, a hippodrome, and a necropolis extending toward the sea. The Al-Bass site north of the city has a triumphal arch and Roman road. The sea is an active part of Tyre's present, not just its past: an artisanal fishing fleet works out of the old harbour, and sandy beaches on the northern coast of the peninsula are among the finest in Lebanon.

The tidal regime is eastern Mediterranean: spring range 0.3–0.4 m, semidiurnal, with meteorological seiches the dominant rapid water-level variable. Seiches at Tyre operate similarly to Beirut — oscillations of 0.2–0.4 m over 20–30 minutes, independent of the lunar cycle, driven by atmospheric pressure disturbances. The peninsula geography concentrates these effects: the old harbour on the southeast face and the beach on the north face respond differently to the same wind and seiche event. The open-sea north beach faces northwest — the dominant swell direction for the eastern Mediterranean — and is more exposed to wave action than the sheltered harbour.

The sandy beach on the north coast of the Tyre peninsula is one of the few long sandy beaches in Lebanon outside the Tripoli area. The beach runs for approximately 1.5 km from the city to the north, and parts of it are within the Tyre Coast Nature Reserve — the only marine protected area in Lebanon, protecting nesting loggerhead and green sea turtles (nesting season June–September). The reserve portion of the beach is closed for landings after dark from June through September to protect nesting turtles. The tidal signal of 0.3–0.4 m has a meaningful effect on turtle nesting: females select nesting sites above the high-water line; a seiche event coinciding with a high-spring-water period can overtop nests laid close to the computed tide line. Reserve managers monitor nest positions and tidal data.

For sea swimmers, the north beach at Tyre is one of the better coastal swimming locations in Lebanon. The sand is clean, the water is generally clearer here than in Beirut (the coast is 80 km south and away from the main urban discharge zones), and the Mediterranean temperature of 26–28 °C in August is consistent. Entry from the beach is straightforward over the sand bottom; depth reaches 1.5 m about 50–60 m from shore. The beach faces northwest and is exposed to any westerly or northwesterly swell above 0.5 m — check the Mediterranean swell forecast before a beach visit if you are bringing children.

For anglers, the old harbour at Tyre is a productive rock-platform and pier environment. Mullet concentrate around the fishing boat moorings in the harbour year-round. Sea bass and bream are caught at dawn from the outer harbour wall rocks. The harbour walls provide sheltered fishing in easterly and southerly wind conditions when the north beach is calm; they provide more sheltered access in northwesterly conditions when the north beach is exposed. The artisanal fishing community at Tyre is active and knowledgeable; the morning fish market at the harbour is open from approximately 07:00 and reflects the previous night's catch.

For divers and snorkellers, Tyre's submerged archaeological material is accessible from the beach north of the city, where the ancient harbour infrastructure and building remains lie in 3–6 m of water. The visibility in calm conditions can reach 10–15 m. A local dive operator in Tyre city provides guided underwater archaeology tours. At low spring water, some features visible above the surface at the base of the peninsula's rock outcrops are submerged at high water.

All tide predictions for Tyre come from the Open-Meteo Marine gridded model. Timing accuracy is ±45 minutes; height accuracy is ±0.3 m above Chart Datum. Seiches — the dominant unpredictable water-level variable on this coast — are not modelled.