Lisbon (Tagus mouth) tide times
Lisbon (Tagus mouth) tide forecast — heights relative to MSL.
Today's tide times for Lisbon (Tagus mouth)
Tide times at Lisbon (Tagus mouth) on Sunday, 26 July 2026: first high tide at 01:00, first low tide at 06:56, second high tide at 13:12, second low tide at 19:33. Sunrise 06:33, sunset 20:54.
Tide chart for Lisbon (Tagus mouth)
24-hour cosine-interpolated curve around the present moment. Heights relative to MSL. Predictions: Predictions: Open-Meteo Marine (MeteoFrance SMOC, 0.08° grid).
Sun, moon and conditions on Sun 26 Jul
Snapshot at build time — refreshes daily. Sea state from Open-Meteo Marine.
Highs and lows next 7 days
Every predicted high and low for the next week, with the daily tidal coefficient (0–120; higher = bigger swing, > 95 means stronger currents).
Other spots nearby
The three closest curated TideTurtle locations to Lisbon (Tagus mouth), measured by great-circle distance.
Today's solunar windows
Solunar tradition: major periods are the ≈3h windows around moon transit and opposition; minor are ≈2h around moonrise and moonset. Pair with the local tide stage and wind for the best read.
Cycle dates near Lisbon (Tagus mouth)
Next spring tide on Sat 01 Aug (range 2.6m). Last neap on Sun 26 Jul.
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.
About tides at Lisbon (Tagus mouth)
A short guide to the coastline at Lisbon (Tagus mouth) — geography, sea state, and what the tide is actually doing under your feet.
The Tagus opens to the Atlantic at Cascais and runs deep into the city of Lisbon, with the tide pushing well past the 25 de Abril bridge before it loses force. 4 metres, semidiurnal, with two highs and two lows about twelve and a half hours apart. 5 metres.
The river current adds to the ebb, sometimes notably so, and the morning land breeze in summer can bend the surface against an incoming tide. For anyone walking the riverside in Belém, paddleboarding from Algés, or watching the surf at Costa da Caparica across the bay, the timing of the swing matters. Caparica's beach narrows on the high — sand width can shrink by 30 m or more — and widens again on the low.
Predictions on this page come from Open-Meteo Marine, a gridded global model. Useful indication for planning, but not navigation-grade — the Portuguese hydrographic institute (Instituto Hidrográfico) operates the authoritative gauges and publishes tide tables for the Tagus.
Tide questions about Lisbon (Tagus mouth)
Quick answers to the most common questions about tide times, range, and water access at Lisbon (Tagus mouth).
When is the next high tide at the Tagus mouth?
The hero block shows the next high tide at the lower Tagus near Cascais in local Lisbon time. The 7-day table covers daily extremes for both ends of the swing. Note that high water at Lisbon city centre (Cais do Sodré) lags the river mouth by 30–60 minutes depending on river discharge.
What's the typical tide range at Lisbon?
Mean range is about 2.4 metres at the Tagus mouth. Spring tides — around new and full moons — push toward 3.5 metres, the biggest tides on the Iberian Atlantic coast. Neap tides compress the swing to around 1.5 metres. The big swings of the year happen at the equinoxes when astronomical forcing is strongest.
Where do these tide predictions come from?
Open-Meteo Marine, a global ocean-grid model (MeteoFrance SMOC, 0.08 degree). Gridded model output — useful for planning around the Tagus, but not navigation-grade. For the authoritative Portuguese tide data including the official Lisbon and Cascais gauges, see Instituto Hidrográfico (IH) tide tables.
Why does the tide affect Costa da Caparica's beach width?
Caparica is a long open Atlantic-facing beach with a relatively gentle slope, so the difference between high and low water shifts the waterline horizontally by 30 m or more on a typical day, and further on spring tides. Strong onshore swell and wind setup can make the high look bigger still. Walk the beach at low water for the widest sand.
Is this safe to use for navigation?
No. For piloting on the Tagus or the Portuguese coast, use Instituto Hidrográfico's authoritative tide tables and chart products plus the latest navigational warnings. Open-Meteo's gridded predictions are useful general planning data, not a navigational source.
7-day tide table — Lisbon (Tagus mouth)
Heights relative to MSL. Predictions: Open-Meteo Marine (MeteoFrance SMOC, 0.08° grid) — heights relative to MSL (not chart datum / LAT). Model-derived.
| Day | Type | Time | Height |
|---|---|---|---|
| Sun 26 Jul | High | 01:00 | 0.2m |
| Low | 06:56 | -1.1m | |
| High | 13:12 | 0.4m | |
| Low | 19:33 | -1.2m | |
| Mon 27 Jul | High | 01:39 | 0.3m |
| Low | 07:38 | -1.2m | |
| High | 13:55 | 0.6m | |
| Low | 20:10 | -1.3m | |
| Tue 28 Jul | High | 02:16 | 0.5m |
| Low | 08:13 | -1.3m | |
| High | 14:32 | 0.7m | |
| Low | 20:46 | -1.4m | |
| Wed 29 Jul | High | 02:52 | 0.6m |
| Low | 08:46 | -1.4m | |
| High | 15:03 | 0.8m | |
| Low | 21:17 | -1.5m | |
| Thu 30 Jul | High | 03:25 | 0.6m |
| Low | 09:19 | -1.5m | |
| High | 15:36 | 0.9m | |
| Low | 21:49 | -1.6m | |
| Fri 31 Jul | High | 03:56 | 0.7m |
| Low | 09:52 | -1.5m | |
| High | 16:08 | 1.0m | |
| Low | 22:22 | -1.6m | |
| Sat 01 Aug | High | 04:28 | 0.7m |
| Low | 10:24 | -1.5m | |
| High | 16:40 | 1.0m | |
| Low | 22:55 | -1.6m |