The native Hawaiian and Aquaman actor wrote on Instagram: "Maui is not the place to have your vacation right now.
"Do not travel," he said. "Do not convince yourself that your presence is needed on an island that is suffering this deeply."
More than 90 people are confirmed dead in fires that destroyed towns including historic Lahaina.
Momoa also shared a video in which he said that the Hawaiian community "needs time to heal, grieve and restore".
