Seasonal forecasts are crucial because they enable marketers to tailor their messages according to the changing needs and interests of their audience. For instance, during the holiday season, consumers are more likely to look for deals, gifts, and special offers. By anticipating these needs, marketers can craft compelling email campaigns that drive higher open rates, click-through rates, and conversions. Additionally, seasonal forecasts help in better resource allocation and budgeting, ensuring that marketing efforts are both efficient and effective.