Dubrovnik, Dalmatia tide times

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 00:00 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 for major/minor fishing windows: major ≈3-hour windows around moon transit and opposition; minor ≈2-hour windows around moonrise and moonset. Times are Europe/Zagreb local. Folk tradition, not a scientific forecast.

Dubrovnik's old city sits on a rocky peninsula that juts south into the Adriatic, surrounded on three sides by sea. The city walls — 2 km of continuous limestone, 4–6 m thick — meet the water on the south and east faces; the west side opens onto the sheltered Pile bay. The Stara Luka, the Old Town harbour, is a small basin tucked into the east side of the peninsula, protected by a short mole. It's the original medieval harbour, and it still functions as a working small-boat port alongside its role as a tourist embarkation point for the Elafiti Islands and Lokrum. The Adriatic tidal system is shaped by the basin's amphidromic geometry. A near-zero amphidromic point — a node where tidal range collapses to almost nothing — sits in the central Adriatic, roughly between the Italian and Croatian coasts. At the northern end of the Adriatic, Venice experiences tidal ranges of 0.8–1.0 m. At Dubrovnik, near the southern end of the basin and in the amphidromic shadow, the mean range drops to just 0.25–0.45 m, with spring tides reaching approximately 0.5 m. Tides here are semidiurnal, with two complete cycles per day. For the Stara Luka harbour, that 0.3 m tidal window matters. The harbour bottom is irregular limestone with patches that effectively dry at lower tides — a fall of 0.25–0.30 m from mean high water can reduce the usable depth along the inner quay to 0.5 m or less. Water taxis and inter-island ferries that use the Old Town harbour work around this; the operators know the local datum and plan departures to avoid the lowest hour of the ebb. If you're chartering a small boat from the Old Town harbour, ask the operator about the tidal state for your departure — it's not navigational-grade critical, but it's part of the local knowledge that keeps keels clear of limestone. The seaward face of the city walls is best seen from water level, and the tidal window determines what's visible. At low water, the wave-cut notch at the base of the walls is exposed — typically 0.2–0.3 m of bare rock between the waterline and the start of the worked stone courses. Kayaking along the south wall at low tide, within 5 m of the base, reveals arched drainage outlets, the original Renaissancе-era stonework at the waterline, and the relationship between the wall's foundations and the reef below. The same section viewed from the city wall walk above gives none of this. Morning light from the east illuminates the south wall directly from 07:30 to approximately 10:00 in summer — the combination of low tide and morning light in June or September is the most revealing condition for photography. Lokrum Island, 500 m from the Old Town harbour, is a forested nature reserve accessible by a small ferry that runs every 30–45 minutes in summer. The island's main curiosity is the Mrtvo More — Dead Sea — a saltwater lake connected to the open Adriatic by a narrow submarine tunnel through the limestone. The tunnel is roughly 40 m long and wide enough for a body of water to pass through; it sits at or just below chart datum. On the flood tide, seawater pushes through the tunnel and raises the lake level by a perceptible margin — typically 0.15–0.25 m over several hours, slightly lagged from the open-sea tide by the restriction of the tunnel. On the ebb, the lake drains back through the same passage. The lake temperature is noticeably higher than the open sea in summer (28–30°C versus 25–27°C on the Adriatic), because the shallow enclosed basin heats faster and exchanges less water. The Lapad Peninsula, 4 km west of the old city, forms the landward boundary of Lapad bay, where the main resort beaches are concentrated. Banje Beach, immediately east of the Pile Gate, is the closest beach to the old city; it faces east and is in shadow by mid-afternoon. All Dubrovnik beaches are pebble or bedrock with the pebble berms characteristic of the Dalmatian coast. The tidal range is small enough that the visible beach width changes only marginally through the cycle — a 0.4 m tide shift on a steeply sloping pebble beach moves the waterline perhaps 2–3 m horizontally. Kayaking around the full circuit of the old city walls — south face, east face with the Old Town harbour, then across to Lokrum and back — is a 5–6 km route that most paddlers complete in two to three hours. The section closest to the walls should be done at low water for maximum clearance and visual interest. The crossing to Lokrum is exposed to south and southeast swells that wrap around the eastern cape; the sheltered Pile bay side is calm in almost all conditions. Tide data for Dubrovnik, Dalmatia comes from the Open-Meteo Marine API, a gridded model product. Timing accuracy is ±45 minutes, height accuracy ±0.3 m — usable for trip planning, not for navigation.