Sea-surface temperature (SST) data for your cruising range and beyond is just $99 with Terrafin’s Web-based software service. SST’s charts are updated twice a day and once daily for chlorophyll, another key indicator. Access charts and look at any region as often as you like. Terrafin takes data from NOAA’s Polar Orbiting Satellites, cleans up the best image, and provides temperature estimates and a lat-lon grid. Coverage includes U.S. coastal waters, Alaska and Hawaii, Central America, Mexico, and the Caribbean.

(www.terrafin.com)

This article originally appeared in the March 2012 issue of Power & Motoryacht magazine.