Is Praia de São Sebastião good for swimming today?
Praia de São Sebastião has BeachFinder Score: 69/100. Use this as a planning signal only, then check local flags, lifeguards, closures and current beach conditions.
BeachFinder184,900 swim spots worldwideLive communityNo recent reports here yet — be the first when you're on the sand.
Back to site
PT - PT
Praia de São Sebastião
No reviews yet
Shared BeachFinder spot: compare live conditions, water temperature, wind, UV, waves, currents, amenities and nearby alternatives before you leave.
Type
Beach
Rating
Rate it
Flag
Local spot
Lifeguard
Check locally
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 17°C, wind 6 km/h · NW, uv 6.5, waves 1.5 m, water quality Check official advisories before leaving. BeachFinder Score: 69/100. Always check official flags, closures and lifeguard advice before swimming.
Water temperature
17°C
Wind
6 km/h · NW
UV
6.5
Waves
1.5 m
Water quality
Check official advisories
Last updated: Sep 20, 06:00 PM local forecast timeBeachFinder Score: 69/100
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.
Help improve this beach page
Add a visitor note or a real photo. Contributions go to BeachFinder moderation before they appear on the public page or in the app.
Photos and reviews are checked before publication. Do not upload private people, license plates or copyrighted material.
Live conditions on the site
Surfers can check wind, wave height, currents and surf cues here before opening the full BeachFinder app.
Updated: Sep 20, 06:00 PM
Water temp
17°C
Air temp
26°C
Feels like
26°C
UV index
6.5
Wind
6 km/h · NW
Gust 20 km/h
Waves
1.5 m
Current
0 km/h · E
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?
17°C. Marine temperature is shown when forecast coverage is available for this location.
How windy is Praia de São Sebastião today?
6 km/h · NW. 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.
BeachFinder
Other nearby spots
Compare nearby alternatives if conditions change, parking is full, or you want a calmer spot.
Activities nearby
Things to do around Lisbon
A few bookable activities near Lisbon after checking conditions for Praia de São Sebastião.
37 km
Loading nearby activities
Affiliate partner
Stay nearby
Hotels and rentals near Praia de São Sebastião
Compare accommodation around this beach after checking current swimming conditions and local access. Prices and availability come from the accommodation partner.
Praia de São Sebastião
Accommodation mapAffiliate accommodation partner