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 Gaspar: The hottest months are usually January and February, with an average temperature of 23°C, while the coldest months are July and June, with an average of 16°C. The rainiest months in Gaspar are January, February, March and December, with each month seeing an average of 205 mm of rainfall.