Yes, swimming in Majorca (Mallorca) in October 2026 is generally quite pleasant, though it feels more like "late summer" than peak heat. The Mediterranean Sea retains the warmth accumulated over the summer, with average water temperatures ranging from 21°C to 23°C (70°F to 73°F). This is often warmer than the sea in June. Air temperatures typically hover between 22°C and 25°C (72°F to 77°F) during the day, which is ideal for the beach without the scorching intensity of August. However, October also marks the start of the "Gota Fría" (rainy season), so while the water is warm, you may encounter occasional heavy storms or "cloudy" days. For travelers in 2026, the southern and eastern coasts of the island (like Cala d'Or or Colonia Sant Jordi) tend to stay slightly warmer and calmer than the mountainous north, making them the best spots for a late-autumn dip.