From 18 to 21 September

Strong NNE winds over the Ionian Sea and the Strait of Otranto, with gusts up to 50-60 km/h. Moderate over the southern Tyrrhenian and the Strait of Sicily; moderate easterly winds over the Strait of Sardinia. Strong NNE winds between the Aegean and eastern Mediterranean, with gusts up to 80-90 km/h over the Sea of Crete. Light and variable winds around the Peninsula, with local reinforcement from the north. Moderate over the northern Ionian, weakening. Reinforcements from ESE over the Strait of Sardinia and the Balearic Sea, with gusts up to 50 km/h. Strong NE winds over the Aegean and eastern Mediterranean, with gusts up to 60-70 km/h. Tending to shift from SSE and progressively strengthening, with gusts up to 40-50 km/h over the Balearic Sea, Gulf of Lion, Sardinian Sea, Corsican Sea, Ligurian Sea, and northern Tyrrhenian. Moderate or locally strong over the Aegean and eastern Mediterranean.

Very rough or locally agitated seas between the Strait of Otranto and the Ionian. Agitated or very agitated the Sea of Crete, the Libyan Sea, and the eastern Mediterranean. The remaining seas are almost calm or slightly rough, with the Strait of Sardinia becoming rough. Rough or locally very rough southern Ionian and Strait of Sardinia; from slightly rough to rough the Balearic Sea. Up to agitated the Libyan Sea and the Sea of Crete, very rough the eastern Mediterranean. Rough or locally very rough the Balearic Sea, Gulf of Lion, Sardinian and Corsican Seas, as well as the Strait of Sardinia. The remaining Italian seas are slightly rough, with increasing wave motion between the Ligurian Sea and central-western Tyrrhenian. Very rough the Libyan Sea and the Sea of Crete.