October in Puerto Viejo de Sarapiquí is the rainiest month of the year. In October, the weather in Puerto Viejo de Sarapiquí is typically hot. Average daily high temperature in October is about 29 degrees above zero. On average, Puerto Viejo de Sarapiquí has 30 rainy and 1 sunny day in October. The rains are usually heavy. October as well as June, July, August, and September is considered the most uncomfortable time to visit Puerto Viejo de Sarapiquí.