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 San Francisco, San Francisco Bay, California

Time Zone is PDTUnits are feet
Sun 01 May01:302.2L07:134.5H13:330.2L20:435.0H
Mon 02 May02:291.6L08:274.6H14:270.3L21:245.4H
Tue 03 May03:210.9L09:364.8H15:180.4L22:035.8H
Wed 04 May04:090.1L10:385.0H16:060.6L22:426.2H
Thu 05 May04:57-0.5L11:385.1H16:530.9L23:226.4H
Fri 06 May005:44-1.1L12:355.2H17:411.2L
Sat 07 May00:036.6H06:32-1.4L13:315.1H18:291.5L
Sun 08 May00:476.5H07:21-1.5L14:285.1H19:201.9L
Mon 09 May01:326.3H08:11-1.4L15:265.0H20:162.2L
Tue 10 May02:206.0H09:04-1.1L16:264.9H21:202.4L
Wed 11 May03:135.6H10:00-0.8L17:284.9H22:322.5L
Thu 12 May04:125.1H10:59-0.3L18:294.9H23:502.4L
Fri 13 MayG05:194.6H12:000.1L19:265.0H
Sat 14 May01:042.1L06:344.3H12:580.4L20:155.1H
Sun 15 May02:081.7L07:504.1H13:520.8L20:575.3H
Mon 16 May03:021.2L09:014.0H14:411.1L21:335.4H
Tue 17 May03:470.8L10:024.1H15:241.3L22:045.5H
Wed 18 May04:270.4L10:554.2H16:041.6L22:335.6H
Thu 19 May05:030.1L11:434.2H16:411.8L23:025.6H
Fri 20 May05:36-0.2L12:264.3H17:172.1L23:315.7H
Sat 21 May@06:08-0.4L13:084.3H17:522.3L
Sun 22 May00:015.7H06:41-0.6L13:484.3H18:272.5L
Mon 23 May00:335.7H07:15-0.7L14:304.4H19:032.6L
Tue 24 May01:085.6H07:51-0.7L15:134.4H19:452.8L
Wed 25 May01:475.4H08:31-0.7L15:594.4H20:332.9L
Thu 26 May02:305.2H09:15-0.6L16:474.5H21:322.9L
Fri 27 May03:205.0H10:04-0.4L17:364.6H22:432.8L
Sat 28 May04:204.7H10:57-0.1L18:254.9H23:582.4L
Sun 29 MayT05:324.4H11:540.1L19:125.2H
Mon 30 May01:081.9L06:524.2H12:510.4L19:585.5H
Tue 31 May02:091.1L08:144.2H13:480.8L20:425.9H

QR code: http://www.dairiki.org/tides/monthly.php/sfo 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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