Spain / Catalonia
Castelldefels Beach
Castelldefels Beach is a 6.2 km-long sandy beach facing south on the Mediterranean Sea, 1.8 km south of Castelldefels (Catalonia, Spain). The sea averages 25.7 °C in August, its warmest month, and 13.1 °C in February; it is 21 °C or warmer in June–October. Recorded status on Wikidata: Blue Flag beach.
Average sea surface temperature by month. Current month outlined.
Month by month
October at Castelldefels Beach
Beach-day index 6.3/10 · Spain median 6.7
| Measure | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea °C | 13.7 °C | 13.1 °C | 13.5 °C | 14.7 °C | 17.3 °C | 21.1 °C | 24.3 °C | 25.7 °C | 24.1 °C | 21.3 °C | 17.7 °C | 15.1 °C |
| High °C | 12° | 13° | 15° | 17° | 20° | 25° | 27° | 27° | 24° | 21° | 16° | 13° |
| Low °C | 7° | 7° | 8° | 11° | 14° | 18° | 21° | 22° | 19° | 16° | 11° | 8° |
| Rain mm | 47 | 42 | 57 | 67 | 64 | 39 | 44 | 56 | 76 | 93 | 68 | 36 |
| Cloud % | 69 | 66 | 63 | 62 | 58 | 47 | 38 | 44 | 56 | 65 | 68 | 68 |
| Wind m/s | 3.8 | 3.8 | 4.0 | 3.7 | 3.3 | 3.1 | 3.2 | 3.2 | 3.3 | 3.7 | 4.0 | 3.9 |
| Daylight h | 9.5 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.9 | 13.9 | 12.5 | 11.2 | 9.9 | 9.2 |
| Record high/low | 20°/0° | 21°/-2° | 23°/-0° | 24°/5° | 28°/7° | 31°/12° | 33°/16° | 34°/15° | 31°/12° | 28°/6° | 24°/3° | 19°/1° |
| Beach index | 2.9 | 3.0 | 2.9 | 2.9 | 5.1 | 8.4 | 9.3 | 9.1 | 8.5 | 6.3 | 3.6 | 3.1 |
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 July–August; July scores 9.3/10 with highs of 27 °C, sea at 24.3 °C and 44 mm of rain.
In July that is 0.8 points above the median of the 2,246 beaches in Spain covered by this atlas.
At its warmest the water here is 2.5 °C warmer than the Spain median for August (23.2 °C).
Across the year the sea averages 18.5 °C, cooler than 54% of the coastal beaches in the atlas.
October is the wettest month (93 mm) and December the driest (36 mm); the yearly total is about 690 mm.
Daylight runs from 9.2 hours in December to 15.1 hours in June; in mid-July the sun rises at 06:31 and sets at 21:24 local time.
Orientation, sun and shore
The shore faces south (180°). Open water fills about 53% of the horizon close by, which makes it an exposed spot with water on most sides.
The sun sets over the sea in October–March; in mid-December it goes down at 17:23 local time on a bearing of 239°.
Sunrise is over the sea in October–March.
Straight out to the south about 500 km of open sea lies before the next coast, enough for large swells to build.
About 1 km offshore the sea is roughly 15 m deep and 30 m at 3 km. Behind the beach the ground is about 11 m above sea level 500 m inland and 36 m at 1.5 km.
Within 1 km, the land is 64% built-up land, 14% tree cover and 13% bare ground, sand or rock (satellite land-cover map, 2021): an urban beach. Water makes up 62% of that circle.
- Built 64%
- Tree 14%
- Bare 13%
- Grass 8%
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.
Bathing water quality
The official EU bathing-water site “Playa Del Baixador Pm1”, 190 m from the beach centre, was rated Excellent for the 2025 season. It was Excellent in 11 of its 11 classified seasons since 2015.
- 2015Excellent
- 2016Excellent
- 2017Excellent
- 2018Excellent
- 2019Excellent
- 2020Excellent
- 2021Excellent
- 2022Excellent
- 2023Excellent
- 2024Excellent
- 2025Excellent
Source: European Environment Agency, EU Bathing Water Directive assessments · national site profile. Classes are based on four seasons of bacteriological sampling.
OpenStreetMap shows no lifeguard station within 1 km. Seasonal lifeguard posts are often unmapped, so check on site.
Photos
From above
Facilities within 1 km
- 21Restaurants, cafés & bars
- –Public toilets
- –Showers
- 1Drinking water
- 10Car parks
- –Lifeguard stations
- 2Grocery shops
- 1Water-sports spots
- 1Marinas & slipways
- 24Bus stops (1.5 km)
- 1Pharmacies & clinics
- 1Cash machines
- 1Viewpoints
Food and drink mapped within 1 km: 17 restaurants and 4 bars.
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.
Around the beach
Nature
- Turó de Covafumada peak 860 m NE
- Cova del Fondo cave entrance 1.2 km N
Marinas
- Port Ginesta 550 m W
Diving & boat hire
- Jelly Boats 830 m W
Getting there
| Airport | Code | Distance | Direction |
|---|---|---|---|
| Josep Tarradellas Barcelona-El Prat Airport Barcelona | BCN | 10.2 km | east |
| Reus Airport Reus | REU | 67.9 km | west |
| Girona-Costa Brava Airport Girona | GRO | 97.4 km | north-east |
Straight-line distances from the beach; road distance is usually 20–40% longer.
Local transport: 24 bus stops within 1.5 km, rail station Platja de Castelldefels (2.0 km) and 10 mapped car parks within 1 km.
5 towns and villages of 1,000+ people lie within 10 km (about 190K residents); within 30 km there are 133 (about 6.6M).
Reference
Castelldefels Beach has an article on the CA Wikipedia: Platja de Castelldefels.
Wikidata item Q24023459.
When people look it up
The CA Wikipedia article was read 153 times in the 12 months to August 2026. Interest peaks in August (36 views), 18.0× the quietest month.
Map
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 17.0 km away.
- Beach outline, surface, rules and public facilities: OpenStreetMap contributors (ODbL), feature r2161926; restaurants, cafés, bars and lodging: Overture Maps places (CDLA-Permissive-2.0).
- Water body, status and length: Wikidata (CC0).
- 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_31TDF_20260521_0_L2A.
- Orientation: OpenStreetMap land polygons (ODbL). Depth and terrain: GEBCO 2020 grid.
- Bathing-water quality: European Environment Agency (site ES511M0562478).
- Settlements: GeoNames places with 1,000+ inhabitants.
- Land cover: ESA WorldCover 2021, 10 m (CC BY 4.0).
- Search popularity: about 6.6K Google searches a month for the name (KeywordTool, October 2026).
Data compiled 2026-10-13. Something wrong? Report a data error.