The best time to visit Copainalá is during the dry season, which runs from November to April.
During these months, you'll experience pleasant temperatures and minimal rainfall, making it ideal for exploring the area's natural beauty and archaeological sites. The weather is typically sunny and comfortable for outdoor activities.
For travelers who prefer slightly cooler temperatures and fewer crowds, visiting in late November or early December is an excellent option. The post-rainy season landscape is lush, and the air is crisp, great for enjoying excursions to nearby natural attractions like the La Venta Canyon or the waterfalls of Agua Azul.
If you're interested in local festivities, plan your trip around January 20th for the Feast of San Sebastian, the patron saint of Copainalá.