Plan your trip to the beach with a look at year-round temperatures in Paracas: The hottest months are usually February and March with an average temp of 72°F, while the coldest months are August and September with an average of 63°F. From January through March, the daytime average is 78°F and the nighttime average is 69°F. Between April and June, temperatures average 75°F during the day and 61°F at night. July through September averages 68°F during the day and 58°F at night. In October-December, the average temperature is 73°F during the day and 59°F at night.