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 Twin Rivers, Strait of Juan de Fuca, Washington

Time Zone is PDTUnits are feet
Wed 01 Sep04:240.8L10:584.5H16:043.2L21:565.8H
Thu 02 Sep05:260.5L11:584.8H17:143.0L22:576.0H
Fri 03 Sep06:170.1L12:445.1H18:112.7L23:516.3H
Sat 04 Sep07:01-0.3L13:225.4H18:592.2L
Sun 05 Sep00:406.6H07:41-0.6L13:565.7H19:431.7L
Mon 06 Sep001:256.8H08:17-0.8L14:286.1H20:251.2L
Tue 07 Sep02:096.9H08:53-0.8L15:006.4H21:070.7L
Wed 08 Sep02:526.9H09:28-0.6L15:316.7H21:500.3L
Thu 09 Sep03:386.7H10:05-0.2L16:046.9H22:360.0L
Fri 10 Sep04:276.4H10:420.4L16:407.1H23:24-0.1L
Sat 11 Sep05:205.9H11:221.1L17:197.1H
Sun 12 Sep00:18-0.2L06:215.4H12:071.8L18:057.0H
Mon 13 SepG01:19-0.1L07:335.0H13:022.4L19:016.8H
Tue 14 Sep02:290.0L08:564.8H14:122.9L20:106.6H
Wed 15 Sep03:440.0L10:204.9H15:363.0L21:276.5H
Thu 16 Sep04:56-0.1L11:315.2H16:582.7L22:426.5H
Fri 17 Sep05:58-0.3L12:255.6H18:052.2L23:476.6H
Sat 18 Sep06:50-0.5L13:086.0H19:001.6L
Sun 19 Sep00:446.8H07:34-0.5L13:466.3H19:481.1L
Mon 20 Sep@01:336.8H08:13-0.4L14:196.5H20:310.7L
Tue 21 Sep02:186.7H08:48-0.1L14:506.7H21:100.4L
Wed 22 Sep03:006.5H09:220.2L15:206.7H21:480.3L
Thu 23 Sep03:406.3H09:530.8L15:486.7H22:260.2L
Fri 24 Sep04:226.0H10:251.3L16:176.6H23:030.3L
Sat 25 Sep05:055.6H10:561.9L16:466.5H23:430.5L
Sun 26 Sep05:535.3H11:302.4L17:176.3H
Mon 27 Sep00:270.7L06:485.0H12:092.9L17:556.0H
Tue 28 SepT01:200.9L07:544.7H13:003.3L18:465.8H
Wed 29 Sep02:221.1L09:084.7H14:123.5L19:565.6H
Thu 30 Sep03:321.0L10:204.8H15:373.5L21:155.6H

QR code: https://www.dairiki.org/tides/monthly.php/twnr 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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