Lieutenant Island Tide Chart

Year:
Month:
Height cutoff (ft):
DateDayAM NO GO (over 9.1 ft)PM NO GO (over 9.1 ft)AM High TidePM High Tide
Apr 1M3:50am-5:38am9.54@4:46am8.12@5:29pm
Apr 2Tu4:46am-6:38am9.58@5:44am8.20@6:28pm
Apr 3W5:41am-7:48am9.74@6:46am8.51@7:30pm
Apr 4Th6:34am-9:03am10.04@7:49am9.05@8:30pm
Apr 5F7:25am-10:18am8:29pm-10:26pm10.44@8:51am9.74@9:26pm
Apr 6Sa8:16am-11:26am8:59pm-11:44pm10.84@9:49am10.45@10:19pm
Apr 7Su9:07am-12:27am9:35pm-12:50am11.13@10:44am11.06@11:10pm
Apr 8M10:00am-1:22pm10:15pm-1:48am11.24@11:38am11.48@11:59pm
Apr 9Tu10:55am-2:12pm11:00pm-2:39am11.15@12:30am11.64@12:48am
Apr 10W11:53am-2:57pm10.86@1:22pm
Apr 11Th11:49pm-3:27am12:56am-3:38pm11.54@1:36am10.41@2:14pm
Apr 12F12:44am-4:12am2:05pm-4:14pm11.20@2:26am9.87@3:07pm
Apr 13Sa1:46am-4:54am3:28pm-4:40pm10.70@3:18am9.32@4:03pm
Apr 14Su2:56am-5:34am10.13@4:13am8.85@5:02pm
Apr 15M4:15am-6:12am9.62@5:11am8.53@6:03pm
Apr 16Tu5:42am-6:46am9.24@6:13am8.41@7:05pm
Apr 17W9.04@7:16am8.48@8:05pm
Apr 18Th8.99@8:16am8.69@8:58pm
Apr 19F9.05@9:10am8.96@9:43pm
Apr 20Sa9:48am-10:07am9:53pm-10:55pm9.11@9:57am9.23@10:23pm
Apr 21Su10:22am-10:59am10:12pm-11:51pm9.15@10:40am9.47@10:59pm
Apr 22M11:04am-11:36am10:38pm-12:36am9.14@11:20am9.66@11:35pm
Apr 23Tu11:07pm-1:15am9.09@11:58am9.80@12:10am
Apr 24W11:38pm-1:53am9.01@12:37am9.90@12:45am
Apr 25Th8.90@1:16pm
Apr 26F12:11am-2:32am9.95@1:22am8.77@1:56pm
Apr 27Sa12:47am-3:12am9.98@2:02am8.64@2:38pm
Apr 28Su1:28am-3:56am9.97@2:45am8.54@3:25pm
Apr 29M2:16am-4:44am9.96@3:33am8.50@4:16pm
Apr 30Tu3:11am-5:37am9.94@4:27am8.57@5:11pm

After download, rename file so it has a .ics extension. Then you can drag it to the Calendar app in the dock or import it into a Google calendar.

About

Uses data from Provincetown (not Wellfleet). Provincetown is hopefully the best harmonic station to approximate Wellfleet's tides. For a list of other harmonic stations see NOAA's list.

Note there is some randomness in the calculation, so refreshing the page can yield slightly different results.

Developed by Lee Danilek. Please email the developer with bug reports, comments, etc.

Calculations are based on source code of Pytides, with code rewritten so it can be run online. Tide constants data are from noaa.gov