David Flater (who is author of xtide, the program I use to produce this data) provides the following disclaimer, behind which I firmly stand:

Do not rely on the output of this program for decisions that can result in harm to anyone or anything. Really. I mean it.

Agencies like NOAA exist because there is a need for certifiably correct tide predictions. Please do not rely on XTide if you need guaranteed results. There is no way I can get certified data on a zero budget. I rely on users like you to tell me when something is wrong. Please continue to do so.

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Tidal Heights at Seattle, Puget Sound, Washington

Time Zone is PDTUnits are feet
Wed 01 OctG04:210.1L11:3210.1H17:146.7L22:229.1H
Thu 02 Oct05:240.3L12:4510.2H18:396.4L23:438.9H
Fri 03 Oct06:310.5L13:4810.5H19:545.5L
Sat 04 Oct01:059.1H07:380.7L14:3910.9H20:504.3L
Sun 05 Oct02:209.5H08:400.8L15:2211.3H21:373.0L
Mon 06 Oct03:2610.1H09:351.1L15:5911.7H22:201.6L
Tue 07 Oct04:2610.7H10:261.7L16:3511.9H23:020.4L
Wed 08 Oct@05:2111.2H11:152.4L17:1111.9H23:43-0.5L
Thu 09 Oct06:1411.5H12:023.2L17:4811.8H
Fri 10 Oct00:24-1.1L07:0611.6H12:514.1L18:2611.4H
Sat 11 Oct01:06-1.3L07:5911.5H13:414.9L19:0710.9H
Sun 12 Oct01:50-1.1L08:5311.3H14:365.6L19:5110.2H
Mon 13 Oct02:35-0.6L09:5011.0H15:386.1L20:409.4H
Tue 14 Oct03:240.1L10:5210.7H16:546.3L21:388.7H
Wed 15 OctT04:170.9L11:5910.4H18:246.1L22:488.1H
Thu 16 Oct05:181.7L13:0310.3H19:415.5L
Fri 17 Oct00:097.8H06:242.4L13:5610.4H20:354.7L
Sat 18 Oct01:307.9H07:292.8L14:3610.5H21:143.9L
Sun 19 Oct02:388.3H08:273.1L15:0810.6H21:443.1L
Mon 20 Oct03:348.9H09:163.5L15:3510.6H22:102.3L
Tue 21 Oct04:209.5H09:583.8L16:0010.7H22:351.4L
Wed 22 Oct05:0010.0H10:374.2L16:2610.8H23:020.6L
Thu 23 Oct005:3910.5H11:154.7L16:5410.8H23:33-0.1L
Fri 24 Oct06:1610.9H11:535.1L17:2310.8H
Sat 25 Oct00:06-0.8L06:5611.2H12:335.6L17:5410.7H
Sun 26 Oct00:43-1.2L07:3911.4H13:156.0L18:2910.5H
Mon 27 Oct01:24-1.4L08:2511.5H14:036.3L19:0810.2H
Tue 28 Oct02:08-1.3L09:1511.4H14:566.6L19:549.8H
Wed 29 Oct02:58-0.9L10:1011.3H16:006.6L20:539.2H
Thu 30 OctG03:52-0.3L11:0911.2H17:166.2L22:088.6H
Fri 31 Oct04:530.5L12:0911.3H18:345.4L23:378.3H

QR code: http://www.dairiki.org/tides/monthly.php/sea Available online at

The data in the above table was generated using the program xtide, written by David Flater.
No guarantees as to the correctness of this data are made or implied.
Do not rely on it to make decisions which can result in harm to anyone or anything.

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