Tides Today & Tomorrow in Prisoners Point, San Joaquin River, CA

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide (tomorrow) : in 4h 02m at 12:16 am (1.6 ft)
Next high tide (tomorrow) : 5:35 am (3.8 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:06 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Nov 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:413.03:253.49:150.29:530.26:325:07Waning Crescent1Sun
2Mon3:352.93:573.59:510.310:430.16:335:06New Moon2Mon
3Tue4:252.94:243.510:230.611:290.06:345:05New Moon3Tue
4Wed5:152.94:463.510:520.86:355:04New Moon4Wed
5Thu6:042.85:033.512:130.011:21 AM1.06:365:03New Moon5Thu
6Fri6:552.85:243.612:550.011:52 AM1.26:375:02Waxing Crescent6Fri
7Sat7:472.75:523.61:350.012:301.46:385:01Waxing Crescent7Sat
8Sun8:412.76:283.52:140.01:131.56:395:00Waxing Crescent8Sun
9Mon9:372.77:113.32:550.12:041.56:414:59Waxing Crescent9Mon
10Tue10:332.78:023.13:410.13:031.56:424:58First Quarter10Tue
11Wed11:262.79:032.94:310.14:111.56:434:57First Quarter11Wed
12Thu12:152.75:240.15:261.36:444:56First Quarter12Thu
13Fri12:582.86:140.16:351.16:454:55First Quarter13Fri
14Sat1:353.06:590.17:360.86:464:55Waxing Gibbous14Sat
15Sun1:052.62:063.17:390.28:310.56:474:54Waxing Gibbous15Sun
16Mon2:112.72:323.38:170.39:210.36:484:53Waxing Gibbous16Mon
17Tue3:102.82:583.68:540.510:110.06:494:53Waxing Gibbous17Tue
18Wed4:062.83:273.89:330.711:00-0.16:504:52Full Moon18Wed
19Thu5:022.94:014.010:150.911:49-0.26:514:51Full Moon19Thu
20Fri6:002.94:404.211:011.16:524:51Full Moon20Fri
21Sat6:582.95:234.212:40-0.311:52 AM1.36:534:50Waning Gibbous21Sat
22Sun7:582.96:124.11:33-0.312:471.46:544:50Waning Gibbous22Sun
23Mon8:592.97:063.92:27-0.31:491.46:564:49Waning Gibbous23Mon
24Tue9:592.98:103.53:24-0.22:591.46:574:49Third Quarter24Tue
25Wed10:583.09:273.14:23-0.14:171.26:584:48Third Quarter25Wed
26Thu11:533.110:572.95:21-0.15:351.06:594:48Third Quarter26Thu
27Fri12:443.26:150.06:480.77:004:48Third Quarter27Fri
28Sat12:202.71:303.37:050.17:530.47:014:47Waning Crescent28Sat
29Sun1:302.62:113.57:500.38:510.17:024:47Waning Crescent29Sun
30Mon2:322.62:483.58:300.59:44-0.17:034:47Waning Crescent30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415149)

Common Questions About Prisoners Point, San Joaquin River, CA Tides

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What time does the tide turn (slack tide) in Prisoners Point, San Joaquin River, CA today?

Slack tide in Prisoners Point, San Joaquin River, CA is approximately 2:55 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Prisoners Point, San Joaquin River, CA?

Prisoners Point, San Joaquin River, CA is currently in a spring phase. Tonight's moon is 100% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Prisoners Point, San Joaquin River, CA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Prisoners Point, San Joaquin River, CA?

Tide predictions for Prisoners Point, San Joaquin River, CA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Prisoners Point, San Joaquin River, CA?

Tide data for Prisoners Point, San Joaquin River, CA is sourced from NOAA Station #9415149. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415149.

What is the moon phase in Prisoners Point, San Joaquin River, CA tonight?

Tonight the moon over Prisoners Point, San Joaquin River, CA is Full Moon (100% illuminated). This places Prisoners Point, San Joaquin River, CA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA