Thanks everyone for your time and help!

Since everyone mentioned that it might be cold, I looked at cruises in April, the price is a little bit higher, but the itinerary is different too.

Two itinerary in April

5 Ports: Rome (Civitavecchia), ItalyCorfu, GreeceKotor, MontenegroMykonos, GreeceSantorini, GreeceNaples, Italy (for Capri & Pompeii)Rome (Civitavecchia), Italy

7 Ports: Rome (Civitavecchia), ItalyFlorence/Pisa (La Spezia), ItalyGenoa, ItalyMarseille (Provence), FranceBarcelona, SpainMallorca (Palma), SpainCartagena, SpainGibraltarRome (Civitavecchia), Italy

Should I cruise in April instead? Thanks again!