Lieutenant Island Tide Chart

Year:
Month:
Height cutoff (ft):
Daylight savings:
DateDayAM NO GO (over 9.1 ft)PM NO GO (over 9.1 ft)AM High TidePM High Tide
Dec 1F8:06am-11:12am8:57pm-11:24pm10.85@9:39am10.24@10:10pm
Dec 2Sa8:45am-12:13am9:45pm-12:23am11.34@10:29am10.45@11:03pm
Dec 3Su9:28am-1:11pm10:35pm-1:20am11.70@11:20am10.58@11:56pm
Dec 4M10:17am-2:06pm11.89@12:12am
Dec 5Tu11:29pm-2:15am11:10am-3:00pm10.61@12:50am11.89@1:05pm
Dec 6W12:25am-3:09am12:09am-3:52pm10.55@1:45am11.70@2:00pm
Dec 7Th1:24am-4:02am1:12pm-4:43pm10.40@2:40am11.35@2:56pm
Dec 8F2:25am-4:55am2:20pm-5:33pm10.22@3:37am10.90@3:54pm
Dec 9Sa3:28am-5:50am3:32pm-6:22pm10.04@4:36am10.41@4:54pm
Dec 10Su4:30am-6:46am4:48pm-7:09pm9.90@5:34am9.94@5:55pm
Dec 11M5:30am-7:44am6:05pm-7:53pm9.81@6:33am9.55@6:57pm
Dec 12Tu6:27am-8:44am7:25pm-8:34pm9.79@7:31am9.27@7:59pm
Dec 13W7:20am-9:43am9.82@8:27am9.10@8:58pm
Dec 14Th8:10am-10:37am9.87@9:18am9.00@9:52pm
Dec 15F8:56am-11:27am9.92@10:06am8.93@10:41pm
Dec 16Sa9:39am-12:11am9.94@10:50am8.87@11:27pm
Dec 17Su10:22am-12:50am9.94@11:31am
Dec 18M11:05am-1:27pm8.82@12:09am9.91@12:12am
Dec 19Tu11:48am-2:02pm8.77@12:49am9.86@12:52am
Dec 20W12:31am-2:36pm8.72@1:28am9.79@1:32pm
Dec 21Th1:15pm-3:11pm8.68@2:08am9.71@2:13pm
Dec 22F2:00pm-3:47pm8.68@2:48am9.62@2:54pm
Dec 23Sa2:48pm-4:25pm8.72@3:29am9.53@3:37pm
Dec 24Su3:37pm-5:06pm8.83@4:11am9.45@4:22pm
Dec 25M4:29pm-5:50pm9.02@4:56am9.40@5:10pm
Dec 26Tu5:10am-6:13am5:22pm-6:39pm9.28@5:42am9.38@6:01pm
Dec 27W5:37am-7:23am6:15pm-7:34pm9.62@6:31am9.40@6:55pm
Dec 28Th6:11am-8:31am7:06pm-8:36pm10.02@7:22am9.49@7:51pm
Dec 29F6:49am-9:39am7:55pm-9:41pm10.47@8:16am9.67@8:48pm
Dec 30Sa7:32am-10:45am8:44pm-10:47pm10.94@9:10am9.89@9:45pm
Dec 31Su8:19am-11:49am9:33pm-11:52pm11.36@10:04am10.12@10:41pm

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