Planning for the weather is a good way to make your trip to Marinilla relaxing and enjoyable, especially when you’re splurging. The hottest months are usually August and September with an average temp of 63°F, while the coldest months are January and July with an average of 63°F. The rainiest months in Marinilla are April, May, October, and November, with each month seeing an average of 17 inches of rainfall.