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

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide (tomorrow) : 1:09 am (1.4 ft)
Next high tide : in 14m at 8:01 pm (3.2 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:55 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Sep 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:414.06:153.212:080.16:367:35New Moon1Fri
2Sat5:344.06:483.312:440.16:377:33New Moon2Sat
3Sun6:263.97:213.512:500.71:190.16:387:31Waxing Crescent3Sun
4Mon7:213.77:563.61:430.61:550.26:397:30Waxing Crescent4Mon
5Tue8:203.48:343.62:390.52:350.46:407:28Waxing Crescent5Tue
6Wed9:253.29:183.73:390.43:180.66:417:27Waxing Crescent6Wed
7Thu10:383.010:103.64:460.44:090.86:427:25First Quarter7Thu
8Fri11:552.811:123.65:580.45:091.06:427:24First Quarter8Fri
9Sat1:092.87:110.36:201.26:437:22First Quarter9Sat
10Sun12:243.52:162.98:180.27:341.26:447:21Waxing Gibbous10Sun
11Mon1:363.53:143.19:170.18:421.26:457:19Waxing Gibbous11Mon
12Tue2:403.54:053.210:070.09:421.16:467:18Waxing Gibbous12Tue
13Wed3:343.54:493.310:520.010:351.06:477:16Waxing Gibbous13Wed
14Thu4:223.55:293.311:320.111:240.96:487:14Full Moon14Thu
15Fri5:053.46:053.312:070.26:487:13Full Moon15Fri
16Sat5:463.36:353.312:080.812:370.36:497:11Full Moon16Sat
17Sun6:263.26:593.312:500.71:020.46:507:10Full Moon17Sun
18Mon7:073.17:173.31:290.71:230.56:517:08Waning Gibbous18Mon
19Tue7:502.97:343.32:050.61:470.66:527:07Waning Gibbous19Tue
20Wed8:372.87:583.42:410.62:170.86:537:05Waning Gibbous20Wed
21Thu9:332.68:313.43:180.62:540.96:547:03Waning Gibbous21Thu
22Fri10:402.59:133.44:030.63:391.16:547:02Third Quarter22Fri
23Sat11:542.510:033.45:030.54:331.26:557:00Third Quarter23Sat
24Sun1:042.56:200.55:381.36:566:59Third Quarter24Sun
25Mon2:052.67:320.46:511.36:576:57Third Quarter25Mon
26Tue12:143.32:572.88:310.38:011.26:586:56Waning Crescent26Tue
27Wed1:293.33:412.99:210.29:041.16:596:54Waning Crescent27Wed
28Thu2:373.44:203.110:050.110:010.87:006:53Waning Crescent28Thu
29Fri3:383.54:553.210:450.110:550.67:016:51Waning Crescent29Fri
30Sat4:353.65:273.411:240.211:470.47:016:49New Moon30Sat
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 10:35 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 3% 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 New Moon (3% 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