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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 7h 52m at 10:30 am (0.1 ft)
Next high tide : 4:30 pm (2.8 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - May 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:023.810:192.61:401.53:180.06:097:57Waxing Crescent1Wed
2Thu7:433.711:162.52:271.63:590.06:087:58Waxing Crescent2Thu
3Fri8:313.53:221.74:490.06:067:59Waxing Crescent3Fri
4Sat12:122.69:28 AM3.24:271.65:460.06:058:00First Quarter4Sat
5Sun1:022.610:36 AM3.05:411.56:420.06:048:00First Quarter5Sun
6Mon1:462.711:56 AM2.86:571.27:310.06:038:01First Quarter6Mon
7Tue2:232.81:212.78:050.98:150.06:028:02Waxing Gibbous7Tue
8Wed2:543.02:362.79:060.68:540.26:018:03Waxing Gibbous8Wed
9Thu3:223.23:422.710:010.39:310.46:008:04Waxing Gibbous9Thu
10Fri3:483.54:442.810:550.010:100.65:598:05Waxing Gibbous10Fri
11Sat4:163.85:442.811:48-0.210:510.95:588:06Full Moon11Sat
12Sun4:484.16:452.812:41-0.35:578:07Full Moon12Sun
13Mon5:264.27:472.81:35-0.45:568:08Full Moon13Mon
14Tue6:074.38:492.912:271.42:30-0.45:558:09Waning Gibbous14Tue
15Wed6:544.29:522.91:231.53:26-0.45:558:09Waning Gibbous15Wed
16Thu7:463.910:522.92:251.64:22-0.35:548:10Waning Gibbous16Thu
17Fri8:463.511:503.03:361.65:19-0.25:538:11Third Quarter17Fri
18Sat10:023.14:541.56:15-0.25:528:12Third Quarter18Sat
19Sun12:443.011:34 AM2.86:151.27:07-0.15:518:13Third Quarter19Sun
20Mon1:343.11:002.67:300.97:540.05:518:14Third Quarter20Mon
21Tue2:183.32:132.58:370.68:350.25:508:15Waning Crescent21Tue
22Wed2:573.43:152.49:350.39:120.45:498:15Waning Crescent22Wed
23Thu3:313.54:122.410:280.19:450.75:498:16Waning Crescent23Thu
24Fri3:593.65:062.511:16-0.110:151.05:488:17Waning Crescent24Fri
25Sat4:213.65:582.512:00-0.15:488:18New Moon25Sat
26Sun4:383.76:492.612:42-0.15:478:18New Moon26Sun
27Mon4:573.87:392.71:21-0.15:468:19New Moon27Mon
28Tue5:243.98:272.71:57-0.15:468:20New Moon28Tue
29Wed5:583.99:142.812:401.82:31-0.15:468:21Waxing Crescent29Wed
30Thu6:383.910:002.71:261.83:02-0.15:458:21Waxing Crescent30Thu
31Fri7:233.710:442.72:161.73:34-0.15:458:22Waxing Crescent31Fri
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 1:30 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 87% 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 Waxing Gibbous (87% 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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