Tempered by prevailing easterly trade winds, the islands have a maritime equatorial climate, with high humidity during the November–April rainy season. Although the islands lie outside the tropical hurricane belt, there are occasional gales and even tornadoes. Rainfall varies from an average of 102 cm (40 in) near the equator to 305 cm (120 in) in the extreme north and south. Severe droughts can also occur. On average, there is less than 1% variation between the cool and hot months, but daily temperatures range from 25° C (77° F ) to 32° C (90° F ), with an annual mean temperature of 27° C (81° F ).