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 4h 53m 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 - Jan 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:243.54:540.56:500.47:224:57First Quarter1Tue
2Wed12:362.512:173.75:550.88:000.27:224:58Waxing Gibbous2Wed
3Thu1:512.61:103.86:581.09:010.07:224:59Waxing Gibbous3Thu
4Fri2:562.82:013.98:001.29:56-0.27:225:00Waxing Gibbous4Fri
5Sat3:542.92:494.09:001.310:46-0.27:225:01Full Moon5Sat
6Sun4:463.13:354.09:571.311:31-0.27:225:02Full Moon6Sun
7Mon5:343.24:193.910:511.37:225:03Full Moon7Mon
8Tue6:193.25:023.812:12-0.211:42 AM1.37:225:04Full Moon8Tue
9Wed7:023.25:453.612:49-0.212:311.27:225:05Waning Gibbous9Wed
10Thu7:413.26:303.41:21-0.11:191.17:215:06Waning Gibbous10Thu
11Fri8:183.27:173.11:500.02:081.07:215:07Waning Gibbous11Fri
12Sat8:533.18:112.82:150.13:000.97:215:08Waning Gibbous12Sat
13Sun9:273.19:162.52:420.33:580.97:215:09Third Quarter13Sun
14Mon10:013.110:352.33:140.55:040.87:205:10Third Quarter14Mon
15Tue10:373.211:562.23:560.76:140.67:205:11Third Quarter15Tue
16Wed11:183.24:460.97:190.47:205:12Third Quarter16Wed
17Thu1:102.312:033.45:431.18:170.37:195:13Waning Crescent17Thu
18Fri2:132.512:503.56:441.39:080.17:195:14Waning Crescent18Fri
19Sat3:082.61:373.67:441.49:540.07:185:15Waning Crescent19Sat
20Sun3:562.82:233.88:401.410:35-0.17:185:16Waning Crescent20Sun
21Mon4:402.93:093.99:331.411:12-0.17:175:17New Moon21Mon
22Tue5:193.03:563.910:241.311:47-0.27:175:18New Moon22Tue
23Wed5:553.14:443.911:141.17:165:19New Moon23Wed
24Thu6:293.25:333.812:20-0.212:031.07:155:20New Moon24Thu
25Fri7:013.36:253.612:52-0.112:540.87:155:22Waxing Crescent25Fri
26Sat7:353.47:213.31:25-0.11:480.77:145:23Waxing Crescent26Sat
27Sun8:123.58:253.02:010.12:490.67:135:24Waxing Crescent27Sun
28Mon8:553.69:432.72:420.34:000.67:125:25First Quarter28Mon
29Tue9:443.611:102.53:290.65:190.57:125:26First Quarter29Tue
30Wed10:423.64:270.86:380.47:115:27First Quarter30Wed
31Thu12:332.511:46 AM3.75:351.17:490.27:105:28Waxing Gibbous31Thu
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