Beach forecast for Sete Rios
Today, Wednesday, October 28, 2026 · local time (WET) · Lisbon, Portugal Today, Wed, Oct 28 · WET- Swimming
- Use care · 5.2 ft
- Water
- 65 °F · cool
- Max UV
- 4 · SPF 30
- Low tide
- 9:28 am and 9:45 pm
Today, Wednesday, October 28, it's a fair beach day in Sete Rios (5/10). The best hours are from 10:00 am to 2:00 pm: sunshine, little wind and low tide at 9:28 am, though with some waves. The best day this week is Saturday, October 31, at 7/10.
Beach forecast for the next 7 days
| Day | Rating | Best hours | Swimming | Water | UV |
|---|---|---|---|---|---|
| Today | 5Fair beach day | 10:00 am–2:00 pm | Use care · 5.2 ft | 65 °F | 4 |
| Thu 29 | 7Good beach day | 12:00–5:00 pm | Calm · 2.8 ft | 64 °F | 4 |
| Fri 30 | 6Fair beach day | 1:00–4:00 pm | Calm · 2.1 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 | 7Good beach day | 11:00 am–4:00 pm | Calm · 2.0 ft | 64 °F | — |
| Tue 3 | 3Poor beach day | 3:00–5:00 pm | Calm · 1.2 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
- Sunny
- Feels like 73 °F: mild
- Offshore breeze (4 mph)
- UV 4 (moderate): SPF 30 sunscreen
- Water at 65 °F (cool)
- Low tide at 9:28 am: more sand
Today, hour by hour
- Swimming Use care · 5.2 ft
5.2 ft waves every 13 s: swim with care and stay where you can stand. Moderate rip current risk. Always follow the lifeguard's flags.
- Water 65 °F
Cool: refreshing on a hot day.
- Sun & sunscreen UV 4 · SPF 30
Max UV 4 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 8 mph
Offshore breeze (8 mph). Watch floats and inflatables: offshore wind carries them out to sea.
- Tide & sand 9:28 am
Low tide at 9:28 am and 9:45 pm: that's when there's the most sand. High tide at 3:19 am and 3:43 pm. Coefficient 100 (spring tides): little sand left at high tide.
The best window, 10:00 am to 2:00 pm, brings sunshine, little wind and low tide at 9:28 am, though with some waves.
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
| Time | Rating | Sky | Feels like | Wind | Waves | UV |
|---|---|---|---|---|---|---|
| 8:00 am | 3 | Mainly clear | 62 °F | 2 mph | 5.1 ft | 0 |
| 9:00 am | 1 | Mainly clear | 63 °F | 3 mph | 5.2 ft | 1 |
| 10:00 am | 5 | Mainly clear | 65 °F | 4 mph | 5.2 ft | 2 |
| 11:00 am | 5 | Clear sky | 67 °F | 4 mph | 5.2 ft | 3 |
| 12:00 pm | 5 | Clear sky | 70 °F | 3 mph | 5.2 ft | 4 |
| 1:00 pm | 5 | Clear sky | 73 °F | 3 mph | 5.1 ft | 4 |
| 2:00 pm | 3 | Partly cloudy | 74 °F | 4 mph | 5.0 ft | 3 |
| 3:00 pm | 4 | Partly cloudy | 76 °F | 4 mph | 4.9 ft | 2 |
| 4:00 pm | 3 | Mainly clear | 71 °F | 8 mph | 4.8 ft | 1 |
Beach hours only: from one hour after sunrise to half an hour before sunset.
Beaches near Sete Rios
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Praia da Mutela 4.8 mi · S
- Parking
- Praia de Algés 4.9 mi · SW
- Parking
- Prainha do Porto Brandão 5.1 mi · SW
- Parking
- Praia do Dafundo 5.2 mi · SW
- Parking
- Praia do Portinho da Costa 5.6 mi · SW
- Praia da Cruz Quebrada 5.7 mi · SW
- Praia da Trafaria 6.1 mi · SW
- Restrooms
- Parking
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).
Webcams near Sete Rios
Webcams provided by windy.com — add a webcam
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 1.5 of 4, calm sea 0 of 1, water 0.5 of 1 and tide 0.8 of 1; minus waves 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 Sete Rios
Is it a beach day in Sete Rios today?
A fair beach day: 5/10. Best from 10:00 am to 2:00 pm, with sunshine, little wind and low tide at 9:28 am, though with some waves.
What are the swimming conditions in Sete Rios today?
5.2 ft waves every 13 s: swim with care and stay where you can stand. Moderate rip current risk. Always follow the lifeguard's flags.
How warm is the water in Sete Rios?
About 65 °F today: cool. That's the sea surface temperature offshore; it can differ a little at the shoreline.
How much sun protection do I need in Sete Rios today?
UV reaches 4 (moderate): SPF 30 sunscreen, sunglasses and a hat.
When is low tide in Sete Rios?
Today low tide is at 9:28 am and 9:45 pm: that's when there's the most sand. High tide is at 3:19 am and 3:43 pm. Coefficient 100 (spring tides): little sand left at high tide.
What about tomorrow? Will it be a beach day in Sete Rios?
Tomorrow, Thursday, October 29: a good beach day (7/10), best from 12:00 pm to 5:00 pm.
What beaches are near Sete Rios?
Praia da Mutela (4.8 mi), Praia de Algés (4.9 mi), Prainha do Porto Brandão (5.1 mi), Praia do Dafundo (5.2 mi) and Praia do Portinho da Costa (5.6 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 Sete Rios 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