If you're hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Cananeia: The hottest months are usually February and January, with an average temperature of 24°C, while the coldest months are July and June, with an average of 18°C. The rainiest months in Cananeia are January, February, March and December, with each month seeing an average of 207 mm of rainfall.