Most successful digging occurs between one and two hours before the listed time of low tide.
Nov. 13 Monday, 6:30 P.M.; -0.7 feet; Long Beach, Twin Harbors, Copalis
The daily limit is 15 razor clams per person. Under state law, a daily limit consists of the first 15 clams dug regardless of size or condition, and each digger's clams must be kept in a separate container.
All diggers age 15 or older must have an applicable fishing license to harvest razor clams on any beach. Licenses may be purchased on WDFW's licensing website, and from hundreds of license vendors around the state. Options include a three-day razor clam license to an annual combination fishing license. WDFW recommends buying your license before visiting coastal beach communities.
Source:: https://wdfw.wa.gov/fishing/shellfishing-regulations/razor-clams#current