Ubatuba is a Brazilian municipality, located on the southeast coast, in the state of São Paulo. The population in 2010 was 78,801, its density was 110.87 hab/km² with an area of 712 km².
Ubatuba is linked with the Rodovia Longitudinal or the BR-101 and is also located east of São Paulo and east/north/east of Santos and west of Rio de Janeiro. The city lies on the Tropic of Capricorn.
The urban area is mainly concentrated in the Atlantic and valley areas. The city frequently receives rain, hence the nickname Uba Chuva (chuva being Portuguese for «rain»). Much of the land to the north is forested and mountainous, forming a part of the Serra do Mar mountains. Serra do Mar State Park covers 83% of the city and has few connector roads through the mountain range. A marine park was created under Projeto TAMAR (Project Tamar) to protect sea turtles. In addition, the Oceanographic Institute of the University of São Paulo runs the Clarimundo de Jesus research base in Ubatuba.
Ubatuba is an important tourist city, receiving tourists from many parts of Brazil. Ubatuba features over 100 beaches. Among these are Maranduba, Lázaro, Itamambuca, Vermelha, Grande, Enseada, Perequê, and Saco da Ribeira. Ubatuba also features an island named Anchieta after José de Anchieta. It has been a nature preserve since March 22, 1977.
Ubatuba is considered, by law, as «The Surf Capital of São Paulo State». The city has received this honour because more than ten important surf contests are held off its beaches every year, including two world qualifying series, two Super Surf Pro series, and other competitions supported by such well-established brands as Billabong, Quiksilver and Dunkelvolk (which sponsored the 2009 edition of Ubatuba Surf Contest with more than 120 athletes).
Lately, the city is also known by its biodiversity, especially in relation to birds. There are more than 565 different birds species already identified (as of April 2012), what has each day attracted more and more birdwatchers.