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 : 5:01 pm (-0.1 ft)
Next high tide : in 2h 51m at 9:42 am (3.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Mar 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:463.210:542.32:490.84:420.66:375:59First Quarter1Tue
2Wed9:233.23:351.15:560.56:366:00First Quarter2Wed
3Thu12:132.310:12 AM3.24:321.37:060.46:346:01First Quarter3Thu
4Fri1:232.511:13 AM3.25:431.58:050.26:336:02First Quarter4Fri
5Sat2:212.712:213.36:571.68:550.16:316:03Waxing Gibbous5Sat
6Sun3:102.81:253.48:021.59:380.06:306:04Waxing Gibbous6Sun
7Mon3:522.92:223.58:571.310:15-0.16:286:05Waxing Gibbous7Mon
8Tue4:293.03:133.69:461.210:48-0.16:276:06Waxing Gibbous8Tue
9Wed5:003.04:013.610:320.911:18-0.16:256:07Full Moon9Wed
10Thu5:273.14:493.611:170.711:450.06:246:08Full Moon10Thu
11Fri5:513.25:383.512:020.56:226:09Full Moon11Fri
12Sat6:143.36:303.312:140.112:480.36:216:10Waning Gibbous12Sat
13Sun7:413.58:273.112:450.22:380.27:197:11Waning Gibbous13Sun
14Mon8:143.69:332.82:210.43:350.27:187:12Waning Gibbous14Mon
15Tue8:543.710:512.63:030.74:430.27:167:13Third Quarter15Tue
16Wed9:423.63:521.06:030.27:157:14Third Quarter16Wed
17Thu12:152.510:41 AM3.54:541.27:220.27:137:15Third Quarter17Thu
18Fri1:332.611:58 AM3.46:151.48:320.07:127:16Third Quarter18Fri
19Sat2:402.81:273.37:421.49:31-0.17:107:17Waning Crescent19Sat
20Sun3:363.02:433.38:571.310:21-0.27:097:18Waning Crescent20Sun
21Mon4:243.23:443.410:001.111:05-0.27:077:18Waning Crescent21Mon
22Tue5:063.34:363.410:550.811:43-0.17:067:19Waning Crescent22Tue
23Wed5:433.35:233.311:440.77:047:20New Moon23Wed
24Thu6:163.36:073.212:170.012:300.57:037:21New Moon24Thu
25Fri6:453.36:513.012:460.21:120.47:017:22New Moon25Fri
26Sat7:073.37:372.91:100.31:530.36:597:23Waxing Crescent26Sat
27Sun7:243.38:262.71:330.52:320.36:587:24Waxing Crescent27Sun
28Mon7:423.49:212.51:580.73:120.36:567:25Waxing Crescent28Mon
29Tue8:073.410:262.42:290.93:550.36:557:26Waxing Crescent29Tue
30Wed8:413.411:382.43:091.14:500.36:537:27Waxing Crescent30Wed
31Thu9:233.33:581.35:590.36:527:28First Quarter31Thu
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 1:21 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 38% 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 First Quarter (38% 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