Planning for the weather is a good way to make your trip to San Andrés Villa Seca relaxing and enjoyable, especially when you're splurging. The hottest months are usually March and April, with an average temperature of 26°C, while the coldest months are December and January, with an average of 25°C. The rainiest months in San Andrés Villa Seca are September, June, May and August, with each month seeing an average of 463 mm of rainfall.