Is Praia de São Sebastião good for swimming today?
Praia de São Sebastião has BeachFinder Score: 79/100. Use this as a planning signal only, then check local flags, lifeguards, closures and current beach conditions.
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Praia de São Sebastião
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Shared BeachFinder spot: compare live conditions, water temperature, wind, UV, waves, currents, amenities and nearby alternatives before you leave.
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sand
Quick answer
Quick answer: Praia de São Sebastião today
Praia de São Sebastião is a BeachFinder spot in PT, PT. Today, compare water temperature 19°C, wind 10 km/h · N, uv 6.8, waves 1.2 m, water quality Check official advisories before leaving. BeachFinder Score: 79/100. Always check official flags, closures and lifeguard advice before swimming.
Water temperature
19°C
Wind
10 km/h · N
UV
6.8
Waves
1.2 m
Water quality
Check official advisories
Last updated: Aug 12, 12:45 AM local forecast timeBeachFinder Score: 79/100
Sources: Open-Meteo weather and marine forecasts, OpenStreetMap place context and BeachFinder spot data.
This is planning information, not a safety clearance. Conditions can change quickly.
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Live conditions on the site
Surfers can check wind, wave height, currents and surf cues here before opening the full BeachFinder app.
Updated: Aug 12, 12:45 AM
Water temp
19°C
Air temp
21°C
Feels like
24°C
UV index
6.8
Wind
10 km/h · N
Gust 22 km/h
Waves
1.2 m
Current
1 km/h · S
Parking
...
Shower
...
Accessible access
...
Toilets
...
Restaurants
...
Weather and marine data: Open-Meteo
Praia de São Sebastião
The record identifies Praia de São Sebastião as a beach in Portugal. Consider this location today only when live conditions fit the activity. Before swimming there, confirm wind, waves, currents, water quality, flags and official advice. BeachFinder separates those live checks from the sourced place profile, preventing a short-lived forecast from becoming a permanent claim. Start with the facts that do not depend on today’s forecast. According to the map evidence, the beach surface is sand. The linked entity data uses the classification “beach in Ericeira Portugal.” The recorded map position is 38.97267, -9.42040, which helps distinguish this beach from similarly named places. The local fallback set is Praia do Norte at about 0.6 km, Praia dos Pescadores at about 0.9 km and Praia do Sul at about 1.7 km; their distances are useful, but wind, waves and access can change the ranking. A practical answer needs one last update at the time of travel. Same-day suitability rests on the water, wind and wave update plus currents, UV, water-quality reports and posted advice. Check again at the shoreline, where visible flags and official instructions take precedence over earlier digital information. Use official measurements where available and label uncertainty where they are not. A precise-looking score is not evidence for an undocumented facility or hazard.
About this spot
A strong page for Praia de São Sebastião should make uncertainty useful. The location in Portugal is stable; wind, waves, water quality, UV and access disruptions are not. That contrast is why the page pairs sourced geography with live comparison tools and a nearby fallback. The local fallback set is Praia do Norte at about 0.6 km, Praia dos Pescadores at about 0.9 km and Praia do Sul at about 1.7 km; their distances are useful, but wind, waves and access can change the ranking.
Updated 7/4/2026
Frequently asked questions
What is the water temperature at Praia de São Sebastião today?
19°C. Marine temperature is shown when forecast coverage is available for this location.
How windy is Praia de São Sebastião today?
10 km/h · N. Wind can change comfort and surface conditions, especially on exposed beaches.
What should I check before swimming at Praia de São Sebastião?
Check official safety flags, lifeguard advice, closures, water-quality advisories, UV, wind, waves and currents before entering the water.
Before you go
Conditions
Compare water temperature, air temperature, feels-like temperature, UV index, wind, waves and currents. Surf-focused data appears when a marine model covers the spot.
Amenities
BeachFinder checks parking, showers, toilets, accessible places and restaurants around the spot with OpenStreetMap and shows them in the counters and map.
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Activities nearby
Things to do around Lisbon
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Praia de São Sebastião
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