Malta's climate is typical of the Mediterranean and is strongly influenced by the sea. The Maltese Islands have a pleasantly sunny climate with a daily average of around 12 hours sunshine in summer going down to 5 to 6 hours in mid-winter.
Summers are hot, dry and very sunny. Day-time temperatures in summer are often mitigated by cooling sea breezes.
Spring and autumn are cooler, except when the occasional Scirocco wind from Africa brings unseasonally high temperatures and humidity.
Winters are mild, with the occasional short cold spells brought about by the north and north-easterly winds from central Europe.
Annual rainfall is low, averaging 568mm a year. Bathing in the sea is quite possible well into the ‘winter' months, and the peak beach season can last until mid- to late October.
Information from www.visitmalta.com