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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 6:43 pm (1.1 ft)
Next high tide : in 4h 26m at 2:11 pm (2.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Feb 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:393.411:142.33:190.85:200.57:095:29First Quarter1Mon
2Tue10:213.44:051.06:320.47:095:30First Quarter2Tue
3Wed12:312.411:11 AM3.45:031.37:380.37:085:31First Quarter3Wed
4Thu1:402.512:083.46:111.58:340.17:075:33Waxing Gibbous4Thu
5Fri2:382.71:053.47:191.59:220.07:065:34Waxing Gibbous5Fri
6Sat3:282.81:563.58:191.510:040.07:055:35Waxing Gibbous6Sat
7Sun4:112.92:433.59:121.410:40-0.17:045:36Waxing Gibbous7Sun
8Mon4:493.03:253.610:001.311:10-0.17:035:37Full Moon8Mon
9Tue5:223.04:063.610:441.211:360.07:025:38Full Moon9Tue
10Wed5:503.04:483.511:261.011:580.07:005:39Full Moon10Wed
11Thu6:123.15:313.412:060.86:595:40Full Moon11Thu
12Fri6:303.26:173.312:180.112:470.76:585:41Waning Gibbous12Fri
13Sat6:503.47:073.012:440.21:310.66:575:43Waning Gibbous13Sat
14Sun7:173.68:052.81:150.32:210.56:565:44Waning Gibbous14Sun
15Mon7:533.79:192.51:520.53:230.56:555:45Third Quarter15Mon
16Tue8:363.810:492.42:360.84:440.56:535:46Third Quarter16Tue
17Wed9:303.73:291.16:110.46:525:47Third Quarter17Wed
18Thu12:172.410:35 AM3.74:371.47:260.26:515:48Third Quarter18Thu
19Fri1:312.611:54 AM3.75:591.58:280.06:505:49Waning Crescent19Fri
20Sat2:322.81:153.77:241.49:21-0.16:485:50Waning Crescent20Sat
21Sun3:233.02:233.78:361.310:07-0.26:475:51Waning Crescent21Sun
22Mon4:073.23:213.79:371.110:48-0.26:465:52New Moon22Mon
23Tue4:483.34:133.710:330.811:25-0.26:455:53New Moon23Tue
24Wed5:253.45:023.511:240.711:580.06:435:54New Moon24Wed
25Thu5:583.45:513.412:130.56:425:55New Moon25Thu
26Fri6:283.56:403.112:280.21:000.46:405:56Waxing Crescent26Fri
27Sat6:553.57:322.912:550.41:480.46:395:57Waxing Crescent27Sat
28Sun7:203.58:312.71:230.62:370.46:385:58Waxing Crescent28Sun
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 4:27 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 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 Waning 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