Average water temperatures in the Mediterranean Sea in February change from +8-12°C to +17°C (north to south), from +11°C to +15°C (in the west). In August, the average water temperature rises from +19°C to +25°C, and to +27-30°C in the far east.
The Mediterranean Sea has two good seasons for divers: fall (September-December) and spring (March-May), although there are also beautiful periods in summer and winter when you can dive.
The tides are mostly semi-diurnal - they are less than 1 meter, but in some points can reach 4 meters (Gulf of Genoa, off the northern coast of Corsica and others). The maximum wave height is observed in winter - it reaches 6-8 meters.