Predictions: Open-Meteo Marine (MeteoFrance SMOC, 0.08° grid) — heights relative to MSL (not chart datum / LAT). Model-derived.

Model-derived from a global ocean grid. Useful indication; expect about ±45 minutes on average vs. a local harmonic gauge, individual stations vary widely. See /methodology for per-region detail. Not for navigation.

Conditions as of 18:00 local time. Refreshes daily.

Predictions: Open-Meteo Marine (MeteoFrance SMOC, 0.08° grid) — heights relative to MSL (not chart datum / LAT). Model-derived. · Not for navigation.

The angler tradition that rates each day for fish-bite likelihood using moon transits and rise/set. One to five stars, not a scientific forecast.

• Mon
  ★★★★★
• Tue
  ★★★★★
• Wed
  ★★★★★
• Thu
  ★★★★★
• Fri
  ★★★★★
• Sat
  ★★★★★
• Sun
  ★★★★★

Next spring tide on Fri 01 May (range 0.5m). Last neap on Mon 27 Apr. Next neap on Sat 02 May.

Spring tides cluster around new and full moons (biggest swings). Neap tides land on quarter moons (smallest swings). See the spring tide and neap tide glossary entries for the why.

Split sits on the Adriatic coast of central Dalmatia where the long Marjan peninsula shelters the working harbour from the open sea, with Diocletian's Palace built directly into the seafront in 305 CE forming the entire historical city core. The tide here is the small Mediterranean signal that the long narrow Adriatic basin runs across its full length: mean range at the Split harbour gauge is about 0.4 metres, climbing past 0.6 metres on the largest spring tides and dropping near 0.1 on neaps. The pattern shifts between mixed semidiurnal in the southern Adriatic and predominantly diurnal in the far north at Venice and Trieste; Split sits in the transition zone where two daily highs and two daily lows of unequal size are typical but the asymmetry can be large enough that some days read effectively diurnal. The astronomical signal is genuinely small because the Adriatic connects to the Mediterranean only through the Strait of Otranto at the southern end, and the Mediterranean itself connects to the Atlantic only through the narrow Strait of Gibraltar — neither geometry transmits the global tide cleanly. What matters more on a day-to-day basis is meteorological tide. The bura wind funnels down from the Velebit and Dinaric Alps and across the Adriatic in cold-front events, dropping water level on the Croatian coast by 30 to 50 centimetres while raising it on the Italian side. The jugo southerly that builds ahead of approaching depressions does the opposite. Both winds matter more than the lunar phase for sailors timing harbour exits to the islands. The defining cultural feature is Diocletian's Palace at sea level — the south wall of the palace fronts directly onto the harbour, and the cellars (the substructures used for the live-action filming of King's Landing in Game of Thrones) sit roughly at the predicted high-water line, with the modern Riva promenade between the palace face and the water. Brač and Hvar ferry departures from the central harbour, the working sailing fleet at the ACI Marina, the cliff-jumping and diving from the Marjan peninsula coves, the local sea-urchin (jež) season, and the calmer water at Bačvice and Žnjan beaches on the east side of the city all read the wider weather pattern more than the tide. The Croatian Hydrographic Institute (Hrvatski hidrografski institut) publishes the authoritative tide tables; Open-Meteo Marine drives the gridded predictions on this page.