| Barinatxe | Bizkaia | Cantabrian Sea | 21°C(69.8°F) | July, August, September, October | Live SST → |
| Barranco de los Conejos | Las Palmas | Alboran Sea | 23.1°C(73.6°F) | August, September, October | Live SST → |
| Bassa Cabots | Balearic Islands | Balearic Sea | 25.5°C(77.9°F) | July, August, September | Live SST → |
| Bellavista | Balearic Islands | Balearic Sea | 25.3°C(77.5°F) | July, August, September | Live SST → |
| Benidorm (Playa de Levante) | Costa Blanca | Mediterranean Sea | 25.8°C(78.4°F) | Jun, Jul, Aug, Sep, Oct | Live SST → |
| Buraco da Londra | Spain | Cantabrian Sea | 16.9°C(62.4°F) | July, August, September, October | Live SST → |
| Burumendi hondartza | Gipuzkoa | Cantabrian Sea | 21.3°C(70.3°F) | June, July, August, September | Live SST → |
| Ca los Camps | Balearic Islands | Balearic Sea | 25.4°C(77.7°F) | July, August, September | Live SST → |
| Cala Alcaufar | Balearic Islands | Balearic Sea | 25.2°C(77.4°F) | July, August, September | Live SST → |
| Cala Anguila | Balearic Islands | Balearic Sea | 25.4°C(77.7°F) | July, August, September | Live SST → |
| Cala Arena | Almería | Alboran Sea | 24.1°C(75.4°F) | July, August, September | Live SST → |
| Cala Arturo | Murcia | Alboran Sea | 25.1°C(77.2°F) | July, August, September | Live SST → |
| Cala Baladrar | Alicante | Balearic Sea | 25.3°C(77.5°F) | July, August, September | Live SST → |
| Cala Barques | Balearic Islands | Balearic Sea | 25.4°C(77.7°F) | July, August, September | Live SST → |
| Cala Barril | Balearic Islands | Balearic Sea | 25.1°C(77.2°F) | July, August, September | Live SST → |
| Cala Bassa | Balearic Islands | Balearic Sea | 25.5°C(77.9°F) | July, August, September | Live SST → |
| Cala Bea | Tarragona | Balearic Sea | 24.7°C(76.5°F) | July, August, September | Live SST → |
| Cala Benirràs | Balearic Islands | Balearic Sea | 25.5°C(77.9°F) | July, August, September | Live SST → |
| Cala Binibèquer | Balearic Islands | Balearic Sea | 25.2°C(77.4°F) | July, August, September | Live SST → |
| Cala Binidalí | Balearic Islands | Balearic Sea | 25.2°C(77.4°F) | July, August, September | Live SST → |
| Cala Blanca | Balearic Islands | Balearic Sea | 25.3°C(77.5°F) | July, August, September | Live SST → |
| Cala Blanca | Murcia | Alboran Sea | 25.1°C(77.2°F) | July, August, September | Live SST → |
| Cala Blanca | Castellón | Balearic Sea | 25.2°C(77.4°F) | July, August, September | Live SST → |
| Cala Bona | Gerona | Balearic Sea | 23.8°C(74.8°F) | July, August, September | Live SST → |
| Cala Bóquer | Balearic Islands | Balearic Sea | 25.4°C(77.7°F) | July, August, September | Live SST → |
| Cala Bot | Tarragona | Balearic Sea | 24.7°C(76.5°F) | July, August, September | Live SST → |
| Cala Brafi | Balearic Islands | Balearic Sea | 25.5°C(77.9°F) | July, August, September | Live SST → |
| Cala Bramant | Gerona | Balearic Sea | 20.8°C(69.4°F) | June, July, August, September | Live SST → |
| Cala Cabra Salada | Balearic Islands | Balearic Sea | 25.1°C(77.2°F) | July, August, September | Live SST → |
| Cala Calafató | Tarragona | Balearic Sea | 24.7°C(76.5°F) | July, August, September | Live SST → |
| Cala Calderer | Balearic Islands | Balearic Sea | 25.1°C(77.2°F) | July, August, September | Live SST → |
| Cala Califòrnia | Tarragona | Balearic Sea | 24.7°C(76.5°F) | July, August, September | Live SST → |
| Cala Canutells | Balearic Islands | Balearic Sea | 25.2°C(77.4°F) | July, August, September | Live SST → |
| Cala Carbó | Balearic Islands | Balearic Sea | 25.4°C(77.7°F) | July, August, September | Live SST → |
| Cala Carbón | Almería | Alboran Sea | 24.1°C(75.4°F) | July, August, September | Live SST → |
| Cala Castell | Balearic Islands | Balearic Sea | 25.4°C(77.7°F) | July, August, September | Live SST → |
| Cala Cativa | Gerona | Balearic Sea | 20.8°C(69.4°F) | June, July, August, September | Live SST → |
| Cala Cerrada | Murcia | Alboran Sea | 25°C(77°F) | July, August, September | Live SST → |
| Cala Chilches | Granada | Alboran Sea | 23.3°C(73.9°F) | July, August, September | Live SST → |
| Cala Clara | Balearic Islands | Balearic Sea | 25.4°C(77.7°F) | July, August, September | Live SST → |
| Cala Codolar | Balearic Islands | Balearic Sea | 25.5°C(77.9°F) | July, August, September | Live SST → |
| Cala Comtesa | Balearic Islands | Balearic Sea | 25.5°C(77.9°F) | July, August, September | Live SST → |
| Cala Corquell | Gerona | Balearic Sea | 20.8°C(69.4°F) | June, July, August, September | Live SST → |
| Cala Cortina | Murcia | Alboran Sea | 25.1°C(77.2°F) | July, August, September | Live SST → |
| Cala Crancs | Tarragona | Balearic Sea | 24.6°C(76.3°F) | July, August, September | Live SST → |
| Cala d'Aiguafreda | Gerona | Balearic Sea | 22.5°C(72.5°F) | July, August, September | Live SST → |
| Cala d'Ambolo | Alicante | Balearic Sea | 25.3°C(77.5°F) | July, August, September | Live SST → |
| Cala d'en Carlos | Gerona | Balearic Sea | 23.8°C(74.8°F) | July, August, September | Live SST → |
| Cala d'en Ferrer | Balearic Islands | Balearic Sea | 25.5°C(77.9°F) | July, August, September | Live SST → |
| Cala d'en Remendon | Gerona | Balearic Sea | 22.5°C(72.5°F) | July, August, September | Live SST → |