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 55m 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 - Nov 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:043.13:513.79:520.511:08-0.26:315:07New Moon1Wed
2Thu5:033.04:234.010:310.86:325:06New Moon2Thu
3Fri6:023.04:594.112:02-0.311:13 AM1.06:335:05Waxing Crescent3Fri
4Sat7:042.95:394.112:56-0.312:001.26:345:04Waxing Crescent4Sat
5Sun8:082.96:234.01:52-0.312:531.46:355:03Waxing Crescent5Sun
6Mon9:132.97:143.72:50-0.21:531.56:375:02Waxing Crescent6Mon
7Tue10:172.98:163.43:51-0.13:041.56:385:01First Quarter7Tue
8Wed11:172.99:373.04:52-0.14:231.46:395:00First Quarter8Wed
9Thu12:123.05:50-0.15:421.26:404:59First Quarter9Thu
10Fri1:023.16:420.06:540.96:414:58First Quarter10Fri
11Sat12:322.61:453.27:280.07:560.66:424:58Waxing Gibbous11Sat
12Sun1:372.62:233.28:080.18:510.36:434:57Waxing Gibbous12Sun
13Mon2:342.52:553.38:420.39:400.16:444:56Waxing Gibbous13Mon
14Tue3:262.53:203.49:120.610:260.06:454:55Waxing Gibbous14Tue
15Wed4:162.53:393.59:390.811:090.06:464:54Full Moon15Wed
16Thu5:052.63:533.610:051.111:490.06:474:54Full Moon16Thu
17Fri5:552.64:113.710:351.36:484:53Full Moon17Fri
18Sat6:452.64:383.812:260.011:10 AM1.56:494:52Full Moon18Sat
19Sun7:352.65:133.81:010.011:52 AM1.66:514:52Waning Gibbous19Sun
20Mon8:262.65:543.81:350.012:381.76:524:51Waning Gibbous20Mon
21Tue9:172.66:413.72:100.01:301.76:534:51Waning Gibbous21Tue
22Wed10:072.67:353.42:510.02:281.66:544:50Waning Gibbous22Wed
23Thu10:562.68:373.23:38-0.13:351.56:554:49Third Quarter23Thu
24Fri11:402.79:522.94:30-0.14:501.36:564:49Third Quarter24Fri
25Sat12:212.85:220.06:041.06:574:49Third Quarter25Sat
26Sun12:573.06:120.07:130.66:584:48Waning Crescent26Sun
27Mon12:412.71:303.36:570.28:160.36:594:48Waning Crescent27Mon
28Tue1:552.72:023.67:410.49:140.07:004:47Waning Crescent28Tue
29Wed3:022.72:353.88:240.710:10-0.27:014:47Waning Crescent29Wed
30Thu4:042.83:104.19:091.011:04-0.37:024:47New Moon30Thu
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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