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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 4:29 am (1.1 ft)
Next high tide (tomorrow) : in 1h 40m at 10:54 pm (3.2 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Sep 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:343.44:193.010:150.29:411.26:367:35Waning Crescent1Sun
2Mon3:233.44:583.110:530.210:301.16:377:34Waning Crescent2Mon
3Tue4:073.45:323.111:250.211:151.06:387:32New Moon3Tue
4Wed4:483.46:003.211:530.311:580.96:387:31New Moon4Wed
5Thu5:293.46:233.212:160.46:397:29New Moon5Thu
6Fri6:113.46:403.312:380.712:390.46:407:28New Moon6Fri
7Sat6:543.37:003.51:180.61:050.56:417:26Waxing Crescent7Sat
8Sun7:423.17:283.71:590.61:380.66:427:25Waxing Crescent8Sun
9Mon8:353.08:053.82:430.52:160.76:437:23Waxing Crescent9Mon
10Tue9:392.88:493.83:350.53:010.96:447:21Waxing Crescent10Tue
11Wed10:532.79:413.84:400.53:541.16:447:20First Quarter11Wed
12Thu12:122.65:590.54:581.26:457:18First Quarter12Thu
13Fri1:242.77:150.46:151.36:467:17First Quarter13Fri
14Sat12:013.62:262.98:210.27:361.26:477:15Waxing Gibbous14Sat
15Sun1:253.53:193.19:170.18:491.06:487:14Waxing Gibbous15Sun
16Mon2:393.64:063.210:060.09:530.86:497:12Waxing Gibbous16Mon
17Tue3:423.64:483.410:500.110:510.66:507:10Full Moon17Tue
18Wed4:373.65:273.511:310.111:450.56:507:09Full Moon18Wed
19Thu5:303.56:033.612:080.36:517:07Full Moon19Thu
20Fri6:213.46:363.612:360.412:440.46:527:06Full Moon20Fri
21Sat7:133.37:063.61:260.31:180.66:537:04Waning Gibbous21Sat
22Sun8:063.17:353.62:140.31:520.86:547:03Waning Gibbous22Sun
23Mon9:023.08:073.53:030.32:291.06:557:01Waning Gibbous23Mon
24Tue10:032.88:433.43:540.43:111.16:566:59Waning Gibbous24Tue
25Wed11:062.79:283.34:500.44:021.26:576:58Third Quarter25Wed
26Thu12:112.75:510.45:031.36:576:56Third Quarter26Thu
27Fri1:122.76:530.46:131.36:586:55Third Quarter27Fri
28Sat2:072.87:500.37:231.26:596:53Third Quarter28Sat
29Sun12:542.92:552.98:400.38:261.07:006:52Waning Crescent29Sun
30Mon2:022.93:363.09:220.29:210.97:016:50Waning 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 1:41 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 transitional phase. Tonight's moon is 28% 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 shifting between spring and neap.

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 Crescent (28% illuminated). This places Prisoners Point, San Joaquin River, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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