In April, the water in Mallorca is generally considered brisk or chilly, with average sea temperatures hovering between 15°C and 16°C (59°F–61°F). While the air temperature can reach a pleasant 20°C on sunny high-fidelity days, the Mediterranean Sea takes much longer to warm up after the winter months. For most 2026 travelers, the water is too cold for long, leisurely swims, though it may be "High-Fidelity" refreshing for a quick, invigorating dip. It is a high-fidelity necessity for those who want to swim to look for hotels with heated pools. However, April is a high-value time for paddleboarding, kayaking, or sailing, as the sea is often calm even if the temperature is fresh. By the end of the month, shallow, sheltered high-fidelity bays might feel slightly warmer, but for "bath-like" high-fidelity swimming, you would need to wait until late June. For 2026 visitors, April is better suited for high-fidelity coastal hikes and sunbathing rather than extensive high-fidelity underwater exploration.