Brazil / São Paulo
São Sebastião
São Sebastião is a coastal resort area in São Paulo, Brazil. Its longest mapped beach (Praia do Porto Grande) stretches about 917 m and has a sand surface. The sea averages 27.0 °C in February, its warmest month, and 20.5 °C in August; it is 21 °C or warmer in September–July.
Average sea surface temperature by month. Current month outlined.
OpenStreetMap shows no lifeguard station within 1 km. Seasonal lifeguard posts are often unmapped, so check on site.
Services in the resort
- 67Restaurants, cafés & bars
- 1Public toilets
- –Showers
- 2Car parks
- –Lifeguard stations
- 14Hotels & guesthouses
- 13Grocery shops
- 2Water-sports spots
- 25Bus stops (1.5 km)
- 18Pharmacies & clinics
- 1Cash machines
Food and drink mapped within 1 km: 53 restaurants, 6 cafés and 8 bars. Accommodation: 14 hotels and guesthouses.
Counted within 1 km of the beach (bus stops 1.5 km) from OpenStreetMap features and Overture Maps places, release of 2026-10. Unmapped does not mean absent.
Month by month
October at São Sebastião
Beach-day index 7.8/10 · Brazil median 8.1
| Measure | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea °C | 26.4 °C | 27.0 °C | 26.6 °C | 25.8 °C | 23.8 °C | 22.2 °C | 21.1 °C | 20.5 °C | 21.2 °C | 22.2 °C | 23.1 °C | 24.9 °C |
| High °C | 27° | 27° | 26° | 25° | 24° | 23° | 23° | 23° | 24° | 25° | 25° | 26° |
| Low °C | 22° | 23° | 22° | 21° | 19° | 18° | 17° | 17° | 18° | 19° | 20° | 21° |
| Rain mm | 236 | 206 | 185 | 116 | 74 | 54 | 60 | 46 | 74 | 126 | 182 | 209 |
| Cloud % | 76 | 67 | 66 | 61 | 62 | 54 | 50 | 50 | 63 | 72 | 77 | 78 |
| Wind m/s | 2.8 | 2.7 | 2.8 | 2.9 | 3.0 | 2.9 | 3.0 | 3.1 | 3.3 | 3.2 | 3.2 | 2.9 |
| Daylight h | 13.5 | 12.9 | 12.3 | 11.6 | 11.0 | 10.7 | 10.8 | 11.3 | 11.9 | 12.6 | 13.3 | 13.6 |
| Record high/low | 33°/19° | 33°/19° | 33°/19° | 33°/17° | 31°/14° | 30°/12° | 30°/12° | 34°/12° | 35°/13° | 36°/15° | 33°/16° | 33°/17° |
| Beach index | 7.4 | 7.7 | 7.9 | 8.5 | 8.1 | 7.9 | 7.4 | 7.5 | 7.7 | 7.8 | 7.6 | 7.5 |
Long-term monthly averages: air from NASA POWER (2001–2020), sea from NOAA OISST (1991–2020); records are the extremes of 2001–2020. How the index works.
When to go
The beach-day index peaks in March–June; April scores 8.5/10 with highs of 25 °C, sea at 25.8 °C and 116 mm of rain.
That matches the median for beaches in Brazil in the same month.
Across the year the sea averages 23.7 °C, warmer than 74% of the coastal beaches in the atlas.
January is the wettest month (236 mm) and August the driest (46 mm); the yearly total is about 1,570 mm.
Daylight runs from 10.7 hours in June to 13.6 hours in December; in mid-April the sun rises at 06:15 and sets at 17:48 local time.
Orientation, sun and shore
The shore faces east-south-east (115°). Open water fills about 56% of the horizon close by, which makes it an exposed spot with water on most sides.
At no time of year does the sun set over the sea here: sunset bearings run from 244° to 295°, behind the land.
Sunrise is over the sea in every month.
The opposite shore is only about 500 m away to the east-south-east, which keeps the water sheltered from big waves.
The sea floor is still within the shallow coastal margin 1 km out; 3 km offshore the depth is about 16 m. Behind the beach the ground is about 23 m above sea level 500 m inland and 207 m at 1.5 km, with hills rising behind it.
Within 1 km, the land is 60% built-up land, 26% grassland and 11% tree cover (satellite land-cover map, 2021): an urban beach. Water makes up 3% of that circle.
- Built 60%
- Grass 26%
- Tree 11%
Land cover: ESA WorldCover 2021 (10 m). Orientation from OpenStreetMap land polygons sampled in 36 directions; depths and heights from the GEBCO 2020 grid (about 450 m cells), indicative only.
Getting there
| Airport | Code | Distance | Direction |
|---|---|---|---|
| Professor Urbano Ernesto Stumpf Airport São José Dos Campos | SJK | 78.8 km | north-west |
| São Paulo/Guarulhos–Governor André Franco Montoro International Airport São Paulo | GRU | 116 km | west |
| Congonhas–Deputado Freitas Nobre Airport São Paulo | CGH | 129 km | west |
Straight-line distances from the beach; road distance is usually 20–40% longer.
Local transport: 25 bus stops within 1.5 km and 2 mapped car parks within 1 km.
2 towns and villages of 1,000+ people lie within 10 km (about 117.2K residents); within 30 km there are 3 (about 240.6K).
From above
Around the beach
Attractions & museums
- Espaço Cultural Circo Navegador attraction 420 m N
- Museu de Arte Sacra de São Sebastião museum 670 m E
Diving & boat hire
- Escola Náutica Bombordo 760 m E
- Pararanga Nautica 850 m NE
Map and nearby beaches
Loading map…
Data on this page
- Air temperature, rain, cloud, wind, humidity: NASA POWER climatology 2001–2020, 0.5° grid.
- Sea temperature: NOAA OISST v2.1 monthly normals 1991–2020, nearest ocean cell 23.6 km away.
- Beach outline, surface, rules and public facilities: OpenStreetMap contributors (ODbL), feature w1208387483; restaurants, cafés, bars and lodging: Overture Maps places (CDLA-Permissive-2.0).
- Towns and time zone: GeoNames (CC BY 4.0). Airports: OurAirports (public domain). Sunrise and sunset: NOAA solar equations.
- Photos: Wikimedia Commons, author and licence under each image.
- Satellite view: Copernicus Sentinel-2 (ESA), scene S2B_23KMP_20230625_0_L2A.
- Orientation: OpenStreetMap land polygons (ODbL). Depth and terrain: GEBCO 2020 grid.
- Settlements: GeoNames places with 1,000+ inhabitants.
- Land cover: ESA WorldCover 2021, 10 m (CC BY 4.0).
- Search popularity: about 22.2K Google searches a month for the name (KeywordTool, October 2026).
Data compiled 2026-10-13. Something wrong? Report a data error.