PacIOOS’ Simulating WAves Nearshore (SWAN) model is a 5-day, hourly forecast for the region surrounding the islands of Saipan, Tinian, and Aguijan in the Commonwealth of the Northern Mariana Islands (CNMI) at approximately 365-m resolution. This high-resolution wave model helps capture shallow water effects and nearshore coastal dynamics such as refracting, shoaling, and shadowing.