Temperatures across Sicily run between 56-69°F (14-21°C), where Palermo sees an average high of 75°F (24°C) and most other coastal towns experience something similar, plus or minus a couple of degrees. The sea, too, remains inviting at 73°F (23°C).
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Yet it's still warm enough to sunbathe. There's the odd rainy day, but that's the time to make the most of everything else Italy has to offer, apart from stunning landscapes and a sublime climate. Pack swimwear, a light raincoat, plenty of layers, walking shoes, sandals, and knitwear.
Summer in SicilyOn Sicily's drier, hotter west coast, summer-strong Scirocco winds sometimes blow in from North Africa and can quickly ruin a day at the beach. The northern and eastern coasts of the island see less wind but are still hot and dry in the summer.
In the nation's center, they hover between 55-70°F/13-21°C, and in the south of the country temps range between 65-75°F/18-24°C. You'll want to pack light layers for daytime wear but warmer options and waterproof clothing to guard against any nighttime chills or autumn showers.
Pile on the neutral colorsMeanwhile, the “no white after Labor Day” rule in Italy doesn't exist: Locals love winter white, especially for jeans and sweaters.
Italy's best travel months are May, June, September, and October. They're also the busiest and most expensive time to visit (with the north remaining just as busy throughout midsummer). Crowds aside, these months combine the convenience of peak season with pleasant weather.
At a high level, we think you're going to need at least two weeks (14 days) to see both eastern and western Sicily. Anything less than that and you'd need to cut some of the best sights in each region to try and fit it all in, which we would absolutely not recommend.
If you're only headed to Palermo, you can enjoy a comfortably-paced trip in about five days. With less time, it's still possible to see the highlights in as few as four days.