Captain's Weather
- http://www.captainsweather.com/
- Features forecasts from the Canadian Maritimes to the US Gulf coast from data derived from the US National Weather Service and Environment Canada.
National Data Buoy Center
- http://seaboard.ndbc.noaa.gov/
- Offers recent and historical observations recorded by the National Oceanic and Atmospheric Administration (NOAA) and administered by the National Weather Service of the United States.
Oceanweather Inc.
- http://www.oceanweather.com/
- Offers global, regional, and site specific forecasting based upon aggregate wind barb, current and sea surface temperature (SST) data.
SailFlow
- http://www.sailflow.com
- Weather service designed specifically for nearshore sailors. Provides animated radar, satellite, and wind information.