Planning for the weather is a good way to make your trip to Matagalpa relaxing and enjoyable, especially when you’re splurging. The hottest months are usually April and March with an average temp of 74°F, while the coldest months are January and February with an average of 71°F. The rainiest months in Matagalpa are October, May, June, and September, with each month seeing an average of 11 inches of rainfall.