Climate Influences on Day and Overnight Use at California State Beaches and Coastal Parks

State beaches and parks provide access to coastal environments for recreational activities that rely on access to the ocean, coastal climate, and scenic amenities. Approximately 46 million people visit state beaches in California annually, and another 20 million people visit other types of state park units located in the Coastal Zone, which together constitute 72% of overall visitation to the state parks system. We utilized monthly attendance estimates available between 2001 and 2020 to assess the influence of extreme drought or wet conditions on visitation to state beaches and coastal parks for day use and overnight use. State beaches include direct access to the ocean for water-dependent recreation activities from swimming to scenery, while coastal park types range from coastal forests to historical sites and may include some ocean access but are not directly dependent on water. State park unit climate conditions were analyzed by coastal region according to seasonal variability between moderate and extreme drought and wet categories using the Palmer Drought Severity Index. We found that visitation to state beaches is more sensitive to climate than coastal parks, particularly during times of extreme drought, and that overall day use visitation is more sensitive to climate than overnight use.