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

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide (tomorrow) : 12:16 am (1.6 ft)
Next high tide : in 2h 11m at 7:16 pm (3.1 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:06 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Feb 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:113.16:283.112:500.11:120.97:095:29Waning Gibbous1Fri
2Sat7:313.17:122.91:070.21:520.87:085:30Waning Gibbous2Sat
3Sun7:483.28:032.61:290.32:360.87:075:32Waning Gibbous3Sun
4Mon8:093.39:072.41:590.53:270.77:065:33Waning Gibbous4Mon
5Tue8:413.410:292.32:360.74:330.77:055:34Third Quarter5Tue
6Wed9:223.411:562.23:220.95:510.67:045:35Third Quarter6Wed
7Thu10:133.54:161.27:040.57:035:36Third Quarter7Thu
8Fri1:122.311:14 AM3.55:211.48:050.37:025:37Third Quarter8Fri
9Sat2:142.512:213.66:321.58:580.17:015:38Waning Crescent9Sat
10Sun3:052.71:273.77:421.49:43-0.17:005:39Waning Crescent10Sun
11Mon3:502.92:293.98:461.310:25-0.26:595:40Waning Crescent11Mon
12Tue4:293.03:253.99:441.111:03-0.26:585:42New Moon12Tue
13Wed5:063.24:203.910:400.911:39-0.26:575:43New Moon13Wed
14Thu5:403.35:133.811:330.76:565:44New Moon14Thu
15Fri6:143.56:073.612:14-0.112:270.56:545:45Waxing Crescent15Fri
16Sat6:483.67:053.412:490.01:220.46:535:46Waxing Crescent16Sat
17Sun7:243.78:083.11:250.22:210.36:525:47Waxing Crescent17Sun
18Mon8:043.79:202.82:040.53:260.36:515:48First Quarter18Mon
19Tue8:503.710:402.62:490.74:400.36:505:49First Quarter19Tue
20Wed9:463.611:582.63:451.05:560.36:485:50First Quarter20Wed
21Thu10:533.54:531.27:080.26:475:51First Quarter21Thu
22Fri1:102.712:083.46:111.38:100.06:465:52Waxing Gibbous22Fri
23Sat2:112.91:173.47:241.39:02-0.16:445:53Waxing Gibbous23Sat
24Sun3:023.02:153.48:271.29:46-0.16:435:54Waxing Gibbous24Sun
25Mon3:473.23:033.49:221.010:25-0.16:425:55Waxing Gibbous25Mon
26Tue4:273.23:473.310:110.910:580.06:405:56Full Moon26Tue
27Wed5:023.24:263.210:550.811:250.16:395:58Full Moon27Wed
28Thu5:323.25:053.211:360.711:460.36:375:59Full Moon28Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415149)

Common Questions About Prisoners Point, San Joaquin River, CA Tides

Show All
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 9:46 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 100% 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 Full Moon (100% 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