TidePlanet

Beach forecast for Baixa

Today, Thursday, October 29, 2026 · local time (WET) · Lisbon, Portugal Today, Thu, Oct 29 · WET
7
Beach day rating Good beach day 7 out of 10
Best hours today 12:00–5:00 pm
Swimming
Calm · 2.8 ft
Water
64 °F · cold
Max UV
4 · SPF 30
Low tide
10:15 am and 10:31 pm

Today, Thursday, October 29, it's a good beach day in Baixa (7/10). The best hours are from 12:00 pm to 5:00 pm: sunshine, pleasant temperatures, little wind and a calm sea. The best day this week is Saturday, October 31, at 7/10.

Beach forecast for the next 7 days

DayRatingBest hoursSwimmingWaterUV
Today 7Good beach day
12:00–5:00 pm
Calm · 2.8 ft 64 °F 4
Fri 30 7Good beach day
1:00–5:00 pm10:00 am–12:00 pm
Calm · 2.4 ft 64 °F 4
Sat 31 7Good beach day
12:00–5:00 pm
Calm · 3.1 ft 64 °F 4
Sun 1 7Good beach day
12:00–5:00 pm
Calm · 2.6 ft 64 °F 4
Mon 2 6Fair beach day
11:00 am–4:00 pm
Calm · 2.0 ft 64 °F 4
Tue 3 6Fair beach day
12:00–5:00 pm
Calm · 1.3 ft 63 °F —
Wed 4 2Not a beach day
No good window
Calm · 2.0 ft 63 °F —

Each rating comes from sun, temperature, rain, wind, waves, UV, water temperature and, where there is one, the tide.

Today in detail

6 good hours
  • Sunny
  • Feels like 77 °F: pleasant
  • Cross-shore breeze (6 mph)
  • Calm for swimming: 2.8 ft waves
  • UV 4 (moderate): SPF 30 sunscreen
  • Water at 64 °F (cool)

Today, hour by hour

  • Swimming Calm · 2.8 ft

    2.8 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.

  • Water 64 °F

    Cold: ease in slowly.

  • Sun & sunscreen UV 4 · SPF 30

    Max UV 4 (moderate): SPF 30 sunscreen, reapplied every 2 hours.

  • Wind 6 mph

    Cross-shore breeze (6 mph).

  • Tide & sand 10:15 am

    Low tide at 10:15 am and 10:31 pm: that's when there's the most sand. High tide at 4:04 am and 4:32 pm.

The best window, 12:00 pm to 5:00 pm, brings sunshine, pleasant temperatures, little wind and a calm sea.

We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority.

Today, hour by hour

TimeRatingSkyFeels likeWindWavesUV
8:00 am 3 Clear sky 56 °F 5 mph 3.2 ft 0
9:00 am 4 Clear sky 60 °F 6 mph 3.1 ft 1
10:00 am 4 Clear sky 64 °F 6 mph 3.0 ft 2
11:00 am 7 Clear sky 67 °F 6 mph 2.9 ft 3
12:00 pm 7 Clear sky 70 °F 6 mph 2.8 ft 4
1:00 pm 7 Clear sky 73 °F 4 mph 2.6 ft 4
2:00 pm 8 Clear sky 76 °F 2 mph 2.6 ft 3
3:00 pm 8 Clear sky 77 °F 2 mph 2.4 ft 2
4:00 pm 8 Clear sky 76 °F 3 mph 2.4 ft 1

Beach hours only: from one hour after sunrise to half an hour before sunset.

Beaches near Baixa

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap

Beaches and amenities: © OpenStreetMap contributors (ODbL). Bathing water quality: European Environment Agency (EEA), with data from the Portuguese Environment Agency (APA).

How we rate a beach day

We rate every beach hour from 0 to 10 with simple, fixed rules:

  • Adds: sunshine (up to 3 points, fewer with more clouds), warmth (up to 4, from the feels-like temperature; ideal between 81 °F and 91 °F), a calm sea (1), water at 70 °F or warmer (1; from 64 °F, half) and low or mid tide (1: more sand). Anything without data is left out and the rest is scaled to 10.
  • Takes away: cold (feels-like below 64 °F, 1 to 4 points), rain (half a point if likely, up to 6 if it rains; thunderstorms, 8), wind from force 4, about 12 mph (1 to 6 points; half a point more if offshore, which blows inflatables out to sea, or onshore, which churns the water), waves (1 to swim with care, 4 if dangerous, 1 more for high rip current risk), very high UV (half a point; extreme, 1), water below 59 °F (1) and spring high tides (1: little sand left).
  • Swimming: calm, use care (waves from 2.6 ft, or long swell) or dangerous (from 6.6 ft, or 4.9 ft with a long period), based on how much of the wave reaches this shore given the way it faces. In the U.S., today's and tomorrow's rip current risk comes from the National Weather Service surf zone forecast when it issues one; otherwise we estimate it from the waves.
  • Best windows: runs of 2 to 5 hours rated 4 or more and close to the best hour, at least one hour apart.
  • Day rating: the average of the best window; a 2-hour window keeps 85% of it and a 3-hour window 95%.

Today, in the best window: sun 3 of 3, warmth 2.4 of 4, calm sea 1 of 1, water 0.5 of 1 and tide 0.4 of 1.

It's a guide, not a guarantee: weather changes and every beach is different. Always follow the lifeguard's flags.

Questions about the beach in Baixa

Is it a beach day in Baixa today?

A good beach day: 7/10. Best from 12:00 pm to 5:00 pm, with sunshine, pleasant temperatures, little wind and a calm sea.

What are the swimming conditions in Baixa today?

2.8 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.

How warm is the water in Baixa?

About 64 °F today: cold. That's the sea surface temperature offshore; it can differ a little at the shoreline.

How much sun protection do I need in Baixa today?

UV reaches 4 (moderate): SPF 30 sunscreen, sunglasses and a hat.

When is low tide in Baixa?

Today low tide is at 10:15 am and 10:31 pm: that's when there's the most sand. High tide is at 4:04 am and 4:32 pm.

What about tomorrow? Will it be a beach day in Baixa?

Tomorrow, Friday, October 30: a good beach day (7/10), best from 1:00 pm to 5:00 pm.

What beaches are near Baixa?

Praia da Mutela (2.7 mi), Praia Fluvial da Ponta dos Corvos (4.3 mi), Praia do Clube Naval (4.4 mi), Prainha do Porto Brandão (4.5 mi) and Praia do Mexilhoeiro (4.6 mi). See below for amenities and water quality.

Are there jellyfish or sargassum today?

We don't know: there's no open data on jellyfish, sargassum or closures for each beach. Ask the lifeguard, check the flags or the local beach authority's website.

How is the rating worked out?

From the hourly forecast: sun and clouds, feels-like temperature, rain, wind (and whether it blows onshore or offshore), waves and their period, UV, water temperature and, where there is one, the tide. Each factor adds or takes away a fixed number of points and the rating sums them up out of 10.

More about Baixa today

Learn more

Our own calculation, using the Open-Meteo forecast (ECMWF, NOAA GFS, Météo-France, Copernicus Marine and CAMS, CC BY 4.0), the tide from Cascais (TICON-4) and the sun from astronomy-engine. Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Hart-Davis, M., Dettmering, D., Seitz, F. (2025), TICON-4: TIdal CONstants based on GESLA-4 sea-level records, SEANOE, https://doi.org/10.17882/109129. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data

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