The best time to visit Aguascalientes is during the spring months, particularly April and May, when the weather is pleasant and the city hosts its most significant event.April is an excellent time to experience the Feria Nacional de San Marcos, Mexico's largest and most famous fair. The weather is warm and sunny, with average temperatures in the mid-70s Fahrenheit, making it comfortable to enjoy the outdoor festivities, bullfights, concerts, and cultural exhibitions. This period is ideal for travelers looking for a lively and culturally rich experience.May continues with warm, sunny days, and while the Feria Nacional de San Marcos concludes in early May, the pleasant weather persists, offering a great opportunity to explore the city's historic center, museums, and local cuisine without the larger crowds associated with the fair.