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Lisbon (Tagus mouth) · Lisbon Coast · portugal

Tide is currently rising — next high at 01:00

0.75 m
Next high · 01:00 WEST
Heights relative to MSL · 2026-04-27Coef. 73Solunar 3/5

Tide times at Lisbon (Tagus mouth) on Monday, 27 April 2026: first high tide at 01:00, first low tide at 06:00. Sunrise 06:46, sunset 20:24.

TIDE CURVE

Next 24 hours at Lisbon (Tagus mouth)

-1.6 m-0.3 m1.0 mHeight (MSL)17:0021:0001:0005:0009:0013:00H 01:00L 07:00H 13:00nowTime (Europe/Lisbon)

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.

TODAY'S HIGHLIGHTS

Sun, moon and conditions on Mon 27 Apr

Sunrise
06:46
Sunset
20:24
Moon
Waxing gibbous
75% illuminated
Wind
13.1 m/s
302°
Water temp
16.0 °C
Coefficient
73
Spring cycle

Conditions as of 17:00 local time. Refreshes daily.

7-DAY OUTLOOK

Highs and lows next 7 days

Today
Coef. 73
Tue
0.8m01:00
-1.4m07:00
Coef. 88
Wed
0.8m01:00
-1.4m08:00
Coef. 93
Thu
0.9m02:00
-1.5m08:00
Coef. 99
Fri
0.8m03:00
-1.6m09:00
Coef. 100
Sat
0.8m03:00
-1.5m09:00
Coef. 98
Sun
0.7m04:00
-1.4m10:00
Coef. 95
All extrema (7 days)
DayTypeTimeHeightCoef.
Tue 28 AprHigh01:000.8m88
Low07:00-1.4m
High13:000.7m
Low19:00-1.3m
Wed 29 AprHigh01:000.8m93
Low08:00-1.4m
High14:000.8m
Low20:00-1.4m
Thu 30 AprHigh02:000.9m99
Low08:00-1.5m
High14:000.8m
Low20:00-1.5m
Fri 01 MayHigh03:000.8m100
Low09:00-1.6m
High15:000.8m
Low21:00-1.6m
Sat 02 MayHigh03:000.8m98
Low09:00-1.5m
High15:000.8m
Low21:00-1.5m
Sun 03 MayHigh04:000.7m95
Low10:00-1.4m
High16:000.9m
Low22:00-1.4m

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

SOLUNAR FORECAST

Fishing windows · 7-day rating

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.

SPRING AND NEAP CYCLE

Cycle dates near Lisbon (Tagus mouth)

Next spring tide on Fri 01 May (range 2.4m). Last neap on Mon 27 Apr. Next neap on Sun 03 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.

EDITORIAL

About tides at Lisbon (Tagus mouth)

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. Mean range at the river mouth is about 2.4 metres, semidiurnal, with two highs and two lows about twelve and a half hours apart. Spring tides reach close to 3.5 metres at Cascais and the lower estuary; neaps drop near 1.5 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.

COMMON QUESTIONS

Tide questions about 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.

8-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.

DayTypeTimeHeight
Mon 27 AprHigh01:000.5m
Low06:00-1.3m
Tue 28 AprHigh01:000.8m
Low07:00-1.4m
High13:000.7m
Low19:00-1.3m
Wed 29 AprHigh01:000.8m
Low08:00-1.4m
High14:000.8m
Low20:00-1.4m
Thu 30 AprHigh02:000.9m
Low08:00-1.5m
High14:000.8m
Low20:00-1.5m
Fri 01 MayHigh03:000.8m
Low09:00-1.6m
High15:000.8m
Low21:00-1.6m
Sat 02 MayHigh03:000.8m
Low09:00-1.5m
High15:000.8m
Low21:00-1.5m
Sun 03 MayHigh04:000.7m
Low10:00-1.4m
High16:000.9m
Low22:00-1.4m
Mon 04 MayHigh00:00-1.0m

Not for navigation. Generated 2026-04-27T15:20:29.326Z.

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

Not for navigation. Page generated 2026-04-27T15:20:29.326Z. Predictions refresh daily.