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

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 2h 44m at 3:08 am (0.9 ft)
Next high tide : 8:39 am (3.0 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Apr 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:043.03:083.49:311.010:33-0.26:507:29Waning Crescent1Fri
2Sat4:413.14:103.510:290.711:13-0.16:487:30Waning Crescent2Sat
3Sun5:153.35:083.511:230.411:500.06:477:31New Moon3Sun
4Mon5:473.46:033.412:160.26:457:32New Moon4Mon
5Tue6:183.67:003.312:260.21:080.06:447:33New Moon5Tue
6Wed6:503.77:593.11:030.42:01-0.16:427:34Waxing Crescent6Wed
7Thu7:243.89:022.91:410.62:56-0.16:417:35Waxing Crescent7Thu
8Fri8:013.810:112.82:230.93:55-0.16:397:36Waxing Crescent8Fri
9Sat8:433.611:222.73:111.14:590.06:387:37First Quarter9Sat
10Sun9:333.44:101.36:080.06:367:37First Quarter10Sun
11Mon12:332.710:38 AM3.15:241.57:150.06:357:38First Quarter11Mon
12Tue1:372.912:042.96:451.48:150.06:337:39First Quarter12Tue
13Wed2:323.01:302.88:001.39:060.06:327:40Waxing Gibbous13Wed
14Thu3:203.12:372.89:031.09:490.06:317:41Waxing Gibbous14Thu
15Fri4:013.23:322.89:570.710:260.06:297:42Waxing Gibbous15Fri
16Sat4:373.24:202.810:450.510:560.26:287:43Waxing Gibbous16Sat
17Sun5:083.25:052.811:290.311:210.36:267:44Full Moon17Sun
18Mon5:313.25:482.712:100.26:257:45Full Moon18Mon
19Tue5:473.36:312.712:490.16:247:46Full Moon19Tue
20Wed5:573.47:162.612:020.71:250.16:227:47Full Moon20Wed
21Thu6:133.58:042.612:280.92:000.16:217:48Waning Gibbous21Thu
22Fri6:393.78:572.51:011.02:340.06:207:49Waning Gibbous22Fri
23Sat7:133.89:572.51:391.23:110.06:187:50Waning Gibbous23Sat
24Sun7:543.711:022.52:251.33:580.06:177:51Waning Gibbous24Sun
25Mon8:433.63:181.55:000.16:167:51Third Quarter25Mon
26Tue12:072.59:40 AM3.44:231.56:110.06:157:52Third Quarter26Tue
27Wed1:062.610:51 AM3.25:411.57:170.06:137:53Third Quarter27Wed
28Thu1:582.812:183.07:051.38:13-0.16:127:54Third Quarter28Thu
29Fri2:422.91:463.08:201.09:01-0.16:117:55Waning Crescent29Fri
30Sat3:223.13:013.09:240.69:450.06:107:56Waning Crescent30Sat
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 5:53 am — 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 74% 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 Gibbous (74% 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