Kona Tides
06/19/2013 06:06 AM-0.2Low
06/19/2013 01:27 PM1.9High
06/19/2013 07:43 PM0.5Low
06/20/2013 12:20 AM1.2High
06/20/2013 06:53 AM-0.3Low
06/20/2013 02:14 PM2.2High
06/20/2013 08:40 PM0.4Low
06/21/2013 01:18 AM1.1High

Data from tidesandcurrents.noaa.gov
NOAA weather.gov/hawaii 
Add this widget to your page