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

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 12:15 pm (-0.2 ft)
Next high tide : in 3h 27m at 3:44 am (4.5 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:54 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Jul 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:113.99:333.11:521.43:02-0.25:478:32Waning Gibbous1Tue
2Wed8:053.710:163.22:481.33:40-0.15:478:32Waning Gibbous2Wed
3Thu9:053.411:013.33:501.24:230.05:488:32Third Quarter3Thu
4Fri10:173.111:483.45:001.15:090.15:488:32Third Quarter4Fri
5Sat11:422.86:170.96:000.35:498:32Third Quarter5Sat
6Sun12:363.61:102.77:340.76:550.65:498:32Third Quarter6Sun
7Mon1:253.82:282.78:450.47:520.85:508:31Waning Crescent7Mon
8Tue2:133.93:362.89:480.28:481.05:518:31Waning Crescent8Tue
9Wed2:594.14:372.910:450.09:441.25:518:31Waning Crescent9Wed
10Thu3:434.15:343.111:37-0.110:391.45:528:30New Moon10Thu
11Fri4:254.26:263.212:25-0.15:538:30New Moon11Fri
12Sat5:074.17:153.21:09-0.15:538:29New Moon12Sat
13Sun5:484.08:013.312:251.51:49-0.15:548:29New Moon13Sun
14Mon6:303.98:443.21:161.52:240.05:558:29Waxing Crescent14Mon
15Tue7:133.79:253.22:051.42:560.05:558:28Waxing Crescent15Tue
16Wed7:593.410:033.22:541.33:240.15:568:27Waxing Crescent16Wed
17Thu8:493.110:413.23:451.33:510.25:578:27Waxing Crescent17Thu
18Fri9:482.811:183.24:421.24:210.35:588:26First Quarter18Fri
19Sat11:002.511:543.25:461.04:590.55:588:26First Quarter19Sat
20Sun12:212.46:540.95:430.75:598:25First Quarter20Sun
21Mon12:313.31:392.48:010.76:331.06:008:24First Quarter21Mon
22Tue1:083.42:482.59:010.57:271.26:018:24Waxing Gibbous22Tue
23Wed1:473.63:492.69:550.38:221.46:018:23Waxing Gibbous23Wed
24Thu2:273.84:432.810:440.29:161.56:028:22Waxing Gibbous24Thu
25Fri3:093.95:312.911:280.110:101.56:038:21Waxing Gibbous25Fri
26Sat3:544.16:163.012:100.06:048:20Full Moon26Sat
27Sun4:404.16:573.112:48-0.16:058:20Full Moon27Sun
28Mon5:284.27:363.21:25-0.16:068:19Full Moon28Mon
29Tue6:184.18:133.312:501.32:00-0.16:068:18Waning Gibbous29Tue
30Wed7:103.98:513.31:431.22:35-0.16:078:17Waning Gibbous30Wed
31Thu8:063.79:303.42:391.03:120.06:088:16Waning 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 7:59 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 spring phase. Tonight's moon is 1% 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 New Moon (1% 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