Dar es Salaam has a tropical savanna climate ("Aw" in the Koeppen climate classification). This is because it is very near the equator and the warm Indian Ocean. The city usually has hot and humid weather during much of the year. Each year the area has two rainy seasons. These are called 'the long rains' (in April and May) and 'the short rains' (in November and December). Nearly 1100mm of rain fall each year on the area.