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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 7h 17m at 10:28 am (0.1 ft)
Next high tide : 4:36 pm (2.7 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - May 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:353.510:302.72:141.34:020.06:097:56Waning Gibbous1Sun
2Mon8:143.411:302.73:021.54:530.06:087:57Waning Gibbous2Mon
3Tue9:013.14:011.65:480.16:077:58Third Quarter3Tue
4Wed12:292.79:59 AM2.95:121.56:430.16:067:59Third Quarter4Wed
5Thu1:222.811:17 AM2.66:311.47:340.16:058:00Third Quarter5Thu
6Fri2:092.912:512.57:431.28:190.16:048:01Third Quarter6Fri
7Sat2:503.02:082.58:440.98:580.16:038:02Waning Crescent7Sat
8Sun3:253.13:112.59:370.69:310.26:028:03Waning Crescent8Sun
9Mon3:533.24:052.610:260.410:020.46:018:04Waning Crescent9Mon
10Tue4:153.34:572.611:110.210:320.66:008:04Waning Crescent10Tue
11Wed4:343.55:492.711:550.111:060.85:598:05New Moon11Wed
12Thu4:573.76:422.712:38-0.15:588:06New Moon12Thu
13Fri5:274.07:372.71:21-0.25:578:07New Moon13Fri
14Sat6:034.18:342.712:261.22:07-0.25:568:08Waxing Crescent14Sat
15Sun6:454.19:342.71:141.42:55-0.25:558:09Waxing Crescent15Sun
16Mon7:334.010:362.82:081.53:49-0.25:548:10Waxing Crescent16Mon
17Tue8:273.811:362.83:111.54:48-0.25:538:11Waxing Crescent17Tue
18Wed9:313.54:231.55:49-0.15:538:11First Quarter18Wed
19Thu12:332.910:50 AM3.15:451.36:48-0.15:528:12First Quarter19Thu
20Fri1:263.112:222.97:061.17:430.05:518:13First Quarter20Fri
21Sat2:143.21:452.88:180.78:310.15:508:14Waxing Gibbous21Sat
22Sun2:573.42:562.89:210.49:150.25:508:15Waxing Gibbous22Sun
23Mon3:363.63:572.810:180.19:540.45:498:16Waxing Gibbous23Mon
24Tue4:103.74:542.811:11-0.110:320.75:498:16Waxing Gibbous24Tue
25Wed4:413.85:492.812:01-0.25:488:17Full Moon25Wed
26Thu5:073.86:432.812:48-0.25:478:18Full Moon26Thu
27Fri5:303.87:352.81:33-0.25:478:19Full Moon27Fri
28Sat5:553.88:272.912:231.42:15-0.25:468:20Waning Gibbous28Sat
29Sun6:263.89:192.91:061.62:55-0.15:468:20Waning Gibbous29Sun
30Mon7:023.710:092.91:521.63:33-0.15:458:21Waning Gibbous30Mon
31Tue7:443.510:592.92:421.64:11-0.15:458:22Waning Gibbous31Tue
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 1:32 pm — 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 10% 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 Waning Crescent (10% 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.

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