Jimmy Buffett died from Merkel cell carcinoma, a rare and aggressive form of skin cancer. He had been battling this illness for about four years before his death on September 1, 2023, at the age of 76. Despite his diagnosis, he continued to perform while undergoing treatment until his health declined in the final weeks. Merkel cell carcinoma is less common than other skin cancers like melanoma but tends to be more aggressive and deadly

. Buffett's death brought significant attention to this rare cancer, which affects the top layer of the skin and is strongly linked to UV radiation exposure and immune system status. Early detection is critical for treatment success, but the disease has a high risk of spreading quickly

. He passed away at his home in Sag Harbor, New York, due to complications from this cancer