May in Iceland marks the transition from spring to summer. Expect average temperatures ranging from 4C to 10C (39F to 50F), with higher temperatures possible in the south and lower temperatures in the highlands. Daylight hours extend significantly, offering nearly 20 hours of sunlight by the end of the month. Variable conditions are typical, including sunshine, rain, and occasional snow showers, particularly at higher elevations.
Understanding Iceland’s climate during this period is crucial for planning a successful trip. Packing layers of clothing allows travelers to adapt to fluctuating conditions. The extended daylight hours provide ample opportunities for sightseeing and outdoor activities, making May a popular time to visit. Historically, May has signaled the start of the more active tourist season, with increased accessibility to various parts of the country as roads reopen after winter closures. This allows for exploration of diverse landscapes, from coastal areas to the interior highlands.