Kona Tides
05/21/2018 02:38 PM0.2Low
05/21/2018 10:00 PM1.8High
05/22/2018 05:18 AM0.1Low
05/22/2018 11:08 AM0.9High
05/22/2018 04:13 PM0.3Low
05/22/2018 11:01 PM1.7High
05/23/2018 06:03 AM0Low
05/23/2018 12:20 PM1.2High

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