Tuvalu has a tropical maritime climate: the temperature rarely ranges outside 28°C to 31°C (82-89°F). Humidity is always high. Rainfall is also high, up to 3500mm (138in) in the south (including Funafuti), and is usually brief and heavy; the wettest season is November to February. From May to October winds are light and from the southeast (the trade winds), changing to west-northwest during the November to April 'cyclone season'. While Tuvalu is considered just outside the tropical cyclone belt, severe cyclones do occur occasionally.