Naples (Bay) tide times

The hero block shows the next high tide in the Bay of Naples in local Rome time. The 7-day table covers all four daily extremes — though for the Tyrrhenian Sea the swing is small enough that the secondary high or low often barely registers above the noise.

Mean range at the Naples gauge is about 0.3 metres. Spring tides push close to 0.4 metres around new and full moons, neaps drop close to flat. The Tyrrhenian Sea runs the small Mediterranean signal — the open Atlantic tide cannot propagate cleanly through the Strait of Gibraltar and the basin is too small to host its own significant astronomical tide.

Bradyseism is slow vertical ground motion driven by magma and hydrothermal activity beneath the Phlegraean Fields caldera west of Naples. Over the historic period the Roman market at Pozzuoli has alternated between submerged and exposed as the ground sinks and rises by several metres on decade-to-century timescales. It does not affect daily tide predictions, but the apparent tide range at long-record gauges has shifted noticeably over the centuries because of it.

Open-Meteo Marine, a global ocean-grid model. Useful for general planning around the bay and the islands, though for the small Tyrrhenian signal the gridded resolution sometimes shows more noise than swing. For authoritative Italian tide data, ISPRA Mareografico Nazionale runs the official gauge network including the historic Naples and Civitavecchia stations.

No. For piloting in or out of Naples harbour, crossing to Capri, Ischia, or Procida, or working the Sorrentine cliff coast use ISPRA's authoritative tide tables, the Istituto Idrografico della Marina chart products, and the latest Capitaneria di Porto notices. The Tyrrhenian sees occasional Mediterranean meteotsunamis under the right pressure-wave conditions, and those override normal tidal predictions.