The St. Louis Cardinals baseball team plays games throughout the MLB season, with recent games including a home game against the Pittsburgh Pirates on August 27 and August 28, 2025. Their schedule continues with games against teams like Cincinnati Reds, Oakland Athletics, San Francisco Giants, Seattle Mariners, and others through September 2025. If the question refers to the NFL team Arizona Cardinals, their 2025 regular season games start in early September, with matchups against teams like New Orleans Saints, Carolina Panthers, San Francisco 49ers, and more through the season. To specify which Cardinals team or particular dates are needed, the St. Louis Cardinals' MLB games are played regularly through the spring, summer, and early fall, while the Arizona Cardinals NFL games typically start in September and run through the winter.