How Long is a High? Updated: March 5, 2025 Whenever you consume cannabis, it is important to know what to expect about how long a high will last. Depending on your preferences, you may want to experience a longer high, or you might just want a shorter one to help you chill out. The length of a marijuana high depends on several factors, from consumption method to strength and even your individual body chemistry. Superior Dispensary is here today to help you …