Christmas cards are typically sent out in December, but the timing can vary depending on personal preference and the distance between the sender and recipient. Some people prefer to send them early in the month to give people plenty of time to receive and display them, while others prefer to wait until closer to Christmas to ensure they arrive just in time for the holiday season. Ultimately, the most important thing is to ensure that your cards are sent with love and joy, and that they arrive in time for the recipient to enjoy them.