April to June and September to October are generally the best times to visit Campania; temperatures are usually mild, and the crowds aren't quite so intense. Starting in mid-June, the summer rush begins, especially at the seaside resorts; and from July to August, the coast teems with visitors. Mid-August is the worst on the coast in terms of crowds: The entire country goes on vacation around the holiday of Ferragosto, on August 15; while the cities tend to be deserted -- in Naples, Benevento, Avellino, Caserta, and Salerno many restaurants and shops will be closed -- the seaside towns and island resorts buzz with activity. By contrast, the region's interior never gets really crowded. From November to Easter, most attractions go to shorter winter hours or are closed for renovation, while a number of hotels and restaurants close or take extended vacations. Especially between November and February, spa and beach destinations become padlocked ghost towns. Also, it can get much colder than you'd expect (it might even snow).
High season on most airline routes to Naples usually stretches from June to the beginning of September. This is the most expensive and most crowded time to travel. Shoulder season is from April to May, early September to October, and December 15 to January 14. Low season is from November 1 to December 14 and from January 15 to March 31.
Campania enjoys four well-defined seasons. Winters are mild, spring and fall are pleasant, and summers are hot. July and August are very hot, especially in low-lying areas. The high temperatures (measured in Italy in degrees Celsius) begin in Naples in May, often lasting until sometime in October. For the most part, the humidity is lower in Campania than, say, in Washington, D.C., so high temperatures don't seem as oppressive. In Naples, temperatures can stay in the 90°F (30°C) range for days, but nights are often comfortably cooler.
Winters are mild by the sea, with temperatures averaging 50°F (10°C), but it gets much colder in the interior and the mountains, which often are subject to rain and snow. Precipitations tend to be rare in summer but increase abruptly in the fall, which tends to be the wetter season. They are somewhat lower in winter and dwindle in spring.
Banks, government offices, post offices, and many stores, restaurants, and museums are closed on the following national holidays: January 1 (New Year's Day), January 6 (Epiphany), Easter Monday, April 25 (Liberation Day), May 1 (Labor Day), June 2 (Republic Day), August 15 (Ferragosto/Assumption of the Virgin), November 1 (All Saints' Day), December 8 (Feast of the Immaculate Conception), December 25 (Christmas Day), and December 26 (Santo Stefano). Closings are also sometimes observed on feast days honoring the patron saint of each town and village, when processions are organized through the historic district and around the town's main chiesa or cathedral. In Naples, September 19 is the Feast of St. Gennaro; in Salerno, September 21 is the Feast of St. Matteo; in Avellino, February 14 is the Feast of St. Modestino; Amalfi celebrates the Feast of St. Andrea on June 27 and November 30.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.