Planning for the weather is a good way to make your trip to Alegría relaxing and enjoyable, especially when you're splurging. The hottest months are usually March and February, with an average temperature of 28°C, while the coldest months are December and January, with an average of 26°C. The rainiest months in Alegría are October, June, September and August, with each month seeing an average of 399 mm of rainfall.