Here in Sicily Spring arrives fairly early. You might even say it's already arrived. The weather is already getting warmer after what was an unseasonably warm and brief winter.
Spring and Autumn are without question the best times to visit Sicily, though Winter is becoming increasingly popular and should not be overlooked. July and August, while great for sun worshippers, can be tricky because August, in particular, is often extremely hot - and some public beaches in Sicily are extremely crowded. That said, it's really a question of personal preference.
One of the nice things about Spring is that the fields are green and in April they come alive with wild snapdragons and other wild flowers. Our Sicily weather page offers a glimpse of Sicily's seasons month by month. Shown here is Segesta's ancient Greek temple in April.