The Meteorology Department at the U. of Hawaii posts
a daily surf report. Check their main page for more info.

On the North Shore of Oahu, Surfline has the breaks covered with a battery of cams.

The Weather Underground also maintains a list of marine data.

The Fijiian Meteorological Service tracks ocean weather in the southeastern Pacific.

New Zealand has privatized its weather reporting, although the MetService site still provides good coverage of the Pacific.