Greater Miami enjoys a subtropical climate that ensures plenty of sunshine all year round. Sun protection is advised, even when temperatures are moderated by cool ocean breezes. In summer (June to August), average high temperatures rise to around 90°F (32°C). Winters (December to February) are typical of the 'Sunshine State' with temperatures ranging between 60°F (16°C) and 75°F (24°C). Rainfall occurs mainly during summer and early autumn. Summer humidity levels are usually between 85 and 90 percent, making Miami one of the most humid cities in the US. Miami is genuinely a year-round destination; however, many travellers prefer to avoid the crowds over December and January, and the oppressive heat of July and August.