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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 8h 21m at 10:28 am (0.1 ft)
Next high tide : 4:36 pm (2.7 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Jun 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:323.211:472.83:381.64:510.05:458:22Waning Gibbous1Wed
2Thu9:282.94:421.55:320.05:448:23Third Quarter2Thu
3Fri12:322.910:37 AM2.65:531.36:150.15:448:24Third Quarter3Fri
4Sat1:142.912:032.47:051.16:570.25:448:24Third Quarter4Sat
5Sun1:513.01:302.38:100.97:380.35:438:25Third Quarter5Sun
6Mon2:213.22:432.39:090.68:180.55:438:26Waning Crescent6Mon
7Tue2:483.43:482.410:020.38:580.85:438:26Waning Crescent7Tue
8Wed3:133.74:472.510:520.19:401.05:438:27Waning Crescent8Wed
9Thu3:423.95:452.711:400.010:241.35:428:27New Moon9Thu
10Fri4:164.26:412.812:28-0.15:428:28New Moon10Fri
11Sat4:564.37:362.91:15-0.25:428:28New Moon11Sat
12Sun5:414.48:302.912:071.62:02-0.35:428:29New Moon12Sun
13Mon6:304.39:243.01:051.62:50-0.35:428:29Waxing Crescent13Mon
14Tue7:244.110:163.02:071.63:38-0.35:428:30Waxing Crescent14Tue
15Wed8:233.811:073.13:121.54:26-0.35:428:30Waxing Crescent15Wed
16Thu9:313.411:583.24:231.35:16-0.25:428:30First Quarter16Thu
17Fri10:503.15:391.16:060.05:428:31First Quarter17Fri
18Sat12:473.312:162.86:550.96:550.15:428:31First Quarter18Sat
19Sun1:343.51:352.68:060.67:420.45:438:31Waxing Gibbous19Sun
20Mon2:183.62:472.69:100.38:280.65:438:32Waxing Gibbous20Mon
21Tue2:583.83:512.610:090.09:120.95:438:32Waxing Gibbous21Tue
22Wed3:333.94:492.711:02-0.19:551.25:438:32Waxing Gibbous22Wed
23Thu4:053.95:442.811:51-0.210:371.45:438:32Full Moon23Thu
24Fri4:333.96:362.912:37-0.25:448:32Full Moon24Fri
25Sat5:003.97:263.01:19-0.15:448:32Full Moon25Sat
26Sun5:303.98:123.012:061.71:57-0.15:448:33Full Moon26Sun
27Mon6:043.88:553.012:511.82:31-0.15:458:33Waning Gibbous27Mon
28Tue6:433.79:363.01:371.73:02-0.15:458:33Waning Gibbous28Tue
29Wed7:253.510:153.02:241.63:290.05:468:33Waning Gibbous29Wed
30Thu8:133.310:523.03:131.53:560.05:468:33Waning Gibbous30Thu
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 1:32 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 10% 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 Waning Crescent (10% 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