What is the average temperature of the Mediterranean Sea near Mallorca?

The Mediterranean (Balearic Sea) around Mallorca averages about 19°C (66°F) at the surface over the year. The coldest period is late winter, typically February–March, when sea temperatures are around 14–15°C (57–59°F). Through spring they rise to roughly 16–18°C (61–64°F), crossing 20°C (68°F) by late May or early June. Summer brings the warmest water, commonly 25–27°C (77–81°F) in July–September, with a peak in late August around 26–27°C (79–81°F). In autumn the sea gradually cools to about 22–24°C (72–75°F) in October and 18–20°C (64–68°F) in November. Nearshore, shallow bays can run 1–2°C warmer on calm sunny days, while wind-driven upwelling can briefly cool exposed coasts. These figures refer to surface temperatures; at a few meters depth the water is usually a bit cooler, especially in early summer before full mixing.