Catalonia, Spain
Castelldefels
Castelldefels is a town in Catalonia, Spain, close to the sea. It has a population of about 70,057 (2025). The climate is classified as hot-summer Mediterranean (Köppen Csa), with dry, sunny summers and mild, wetter winters.
Now19°C
Best timeApr · Jun · Nov
Population70,057
Local time16:31
41.28° N, 1.97° EElevation 14 mUTC+2 · Central European Summer Time
Postal codes43130, 43150 …October: high / low23° / 15°
Rain this month93mm
Sea this month21°
Best timeApr · Jun · Nov
Best: Apr · Jun · Nov. Warmth, sunshine and dry days, month by month.
Castelldefels at a glance
Sunrise · sunset08:12 · 19:0210 h 51 min of daylightThe moon tonightWaxing gibbous85% · Moonrise 17:05Next holiday8 DecemberImmaculate ConceptionNext eclipse21 Feb 2027Penumbral lunar eclipse
Best time to visitApr · Jun · Nov
The months with the highest weather score
Warmest month29°C
Average high in August
Coolest month7°C
Average low in January
Wettest monthSeptember
88 mm of rain
Driest monthJuly
23 mm of rain
Warmest sea26°C
August
Monuments nearby10+
within 2.1 km
How Castelldefels has grown
People living in the built-up area (14 km² today), every five years since 1975; 2030 is the projection.
+62%46k in 1975 → 74k in 2025Weather in Castelldefels
Now and the next ten days. The 14 and 30-day outlooks are one click away.
19°C
Today hour by hourCloudy · wind 13 km/h · humidity 54%
Today22 Oct21°11°
Fri23 Oct24°16°
Sat24 Oct20°12°0.6 mm
Sun25 Oct22°12°
Mon26 Oct22°12°
Tue27 Oct23°13°
Wed28 Oct22°14°0.5 mm
Thu29 Oct22°12°
Fri30 Oct21°15°
Sat31 Oct22°14°
When to go to Castelldefels
Each month's weather score (warmth, sun, dry days) with its temperatures and rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Score | 66 | 69 | 75 | 81 | 79 | 82 | 69 | 64 | 72 | 78 | 82 | 72 |
| High | 14° | 15° | 17° | 19° | 22° | 26° | 29° | 29° | 26° | 23° | 18° | 15° |
| Low | 7° | 7° | 9° | 11° | 14° | 18° | 21° | 22° | 19° | 15° | 10° | 7° |
| Rain (mm) | 50 | 42 | 43 | 53 | 59 | 36 | 23 | 64 | 88 | 93 | 67 | 48 |
| Wet days | 6 | 6 | 8 | 8 | 9 | 6 | 7 | 8 | 10 | 9 | 7 | 5 |
| Sea | 14° | 13° | 14° | 15° | 17° | 21° | 24° | 26° | 24° | 21° | 18° | 15° |
What's on in Castelldefels
Concerts, football matches, the public holidays ahead and the town's festivals through the year.
Monuments and museums in Castelldefels
Outdoors around Castelldefels
Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.
Indoorwall Hospitalet de LlobregatClimbing
0.7 kmCatalonia in MiniatureTheme parks
0.9 kmOcio AventuraTheme parks
1 kmSharma Climbing GavàClimbing
1.1 kmRoc 3 Pitch&PuttGolf courses
1.2 kmPitch & Putt Palma de CervellóGolf courses
1.6 kmBadal SubDive site
17 kmDive site
19 kmNature around Castelldefels
Wildlife in October
The birds and mammals of Spain seen most this month, compared with the rest of their year.
The sky over Castelldefels
Earthquakes around Castelldefels
The last 30 days within 300 km, and the record since 1950.
Fossil sites near this town
Fossil sites: 2 · 1 km
Quaternary · 1Neogene · 1
Universities and research institutes
Institute of Space Studies of CataloniaResearch institute · founded 1996
Towns and villages around Castelldefels
Each with its own page: weather, climate and the best time to visit.
Gavà4.1 kmViladecans5.4 kmGarraf6.4 kmSant Climent de Llobregat6.6 kmBegues6.9 kmTorrelles de Llobregat8.1 kmCampdessens9.1 kmSant Boi de Llobregat9.2 kmEl Mas Blau9.7 kmVallcarca10 kmSanta Coloma de Cervelló11 kmJafra11 kmEl Prat de Llobregat12 kmLas Casetas d'en Montaner12 kmSant Joan Despí12 kmCornellà de Llobregat12 kmVallirana13 kmLa Gabarra13 kmEl Hospital13 kmAlmeda i Can Mercader13 kmCervelló13 kmSant Vicenç dels Horts13 kmOlesa de Bonesvalls13 kmSant Feliu de Llobregat13 kmOlivella14 kmSitges14 kmL'Hospitalet de Llobregat14 kmSant Just Desvern14 kmEsplugues de Llobregat15 km
Castelldefels from above
Around Castelldefels40 places to see, do and reach nearby
Cova del RinocerontNature0.9 kmAvenc d'Emili SabatéNature4.7 kmAvenc de l'AsensioNature5.0 kmAvenc dels LlambricsNature5.0 kmAvenc de la SílviaNature5.0 kmAvenc del LlampNature5.2 kmPlatja de CastelldefelsNature1.7 kmPlatja de GavàNature4.4 kmSant JeroniMountain39 kmMontserratMountain39 kmMiranda dels EcosMountain39 kmEl MoroMountain38 kmL'Albarda CastellanaMountain38 kmRoca Plana dels LlampsMountain39 kmBadal SubDive site17 kmDive siteDive site19 kmCastelldefels railway stationMonument0.8 kmEscoles Lluís VivesMonument0.6 kmCa n'OrbatMonument0.3 kmMas JovéMonument0.7 kmCasa de les PlomesMonument0.9 kmTorre de Can Roca de BaixMonument0.9 kmCan VinaderMonument1.3 kmCasa Comte de GüellMonument2.1 kmCau Ferrat MuseumMuseum14 kmMaricel MuseumMuseum14 kmCan Llopis Romanticism MuseumMuseum14 kmMuseum of Mathematics of CataloniaMuseum13 kmGavà Museum and the Gavà Mines Archaeological ParkMuseum4.3 kmCastelldefelsStation0.8 kmPlatja de CastelldefelsStation1.6 kmGavàStation4.4 kmTerminal F1 BaleariaFerry port19 kmBarcelona-Terminal F3Ferry port19 kmBarcelonaPlace20 kmL'Hospitalet de LlobregatPlace14 kmSant Cugat del VallèsPlace24 kmCornellà de LlobregatPlace12 kmSant Boi de LlobregatPlace9.2 kmVilanova i la GeltrúPlace21 km
Postal codes
431304315043710–43711437294383943880–438814388343892–43893
Getting to Castelldefels
Josep Tarradellas Barcelona-El Prat AirportBCN
9.3 kmReus AirportREU
69 kmGirona-Costa Brava AirportGRO
96 kmCastelldefelsRailway station
0.8 kmPlatja de CastelldefelsRailway station
1.6 kmGavàRailway station
4.4 kmTerminal F1 BaleariaFerry port
19 kmBarcelona-Terminal F3Civitavecchia · Porto Torres - Genova
19 kmPlaces near Castelldefels
Places with a climate like Castelldefels
Matched month by month on temperature, rain and sunshine.
Frequently asked questions
When is the best time to visit Castelldefels?
Based on 30-year climate normals, April, June and November offer the best balance of comfortable temperatures, low rainfall and sunshine in Castelldefels.
What is the hottest month in Castelldefels?
August is the warmest month, with average highs of 29°C and lows of 22°C.
What is the coldest month in Castelldefels?
January is the coldest month, with average highs of 14°C and lows of 7°C.
What is the rainiest month in Castelldefels?
September is the wettest month with about 88 mm of precipitation on 10 wet days.
How warm is the sea near Castelldefels?
The sea is warmest in August at about 26°C and coolest in February at about 13°C.
What is the postal code of Castelldefels?
Castelldefels has 11 postal codes: 43130, 43150, 43710–43711, 43729, 43839, 43880–43881, 43883, 43892–43893.