The main river in the state is the Doce. Other important river basins include the Santa Maria River Basin which is the northern branch of rivers which join the sea at Vitoria, and Jucu River Basin which flows into the sea at roughly the same place, but corresponds to the southern branch (which seems to come out of Vitoria). Espírito Santo's climate is tropical along the coast, with dry winters and rainy summers. North of Doce River it's generally drier and also hot. In the mountainous regions in the south and south west of the state, the tropical climate is strongly influenced by altitude, and the average temperatures are colder.