July is a summer month in Hawaii that lies in the dry season with average temperatures of 75°F (23.9°C) to 82°F (27.8°C). It also brings thunderstorms to the region mainly due to localized weather patterns that bring winds, lightning, and sometimes hail along with them. Waterspouts are common in inland areas of the islands. The south and western sides of the islands are more sunny and dry and enjoy comparatively lesser storm interference. Honolulu on the leeward side has temperatures in a warm range of 75°F (23.9°C) to 88°F (31.1°C). Explorers and mountain hikers need to pack a raincoat or umbrella, as convectional rainfall is standard on the mountain slopes during the summer. On average, the sun is present on the horizon for 10 hours a day in Hawaii. Just keep an eye on storms to enjoy the fantastic sailing and surfing opportunities available in the warm waters.