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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 1h 23m at 11:24 am (-0.1 ft)
Next high tide : 5:34 pm (2.9 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Apr 1981

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:053.02:113.28:371.09:300.05:506:29Waning Crescent1Wed
2Thu3:393.13:093.39:300.710:070.05:496:30Waning Crescent2Thu
3Fri4:113.24:043.410:200.510:430.15:476:31New Moon3Fri
4Sat4:403.44:573.411:100.211:190.25:466:32New Moon4Sat
5Sun5:103.65:523.312:000.15:446:32New Moon5Sun
6Mon5:433.76:503.112:52-0.15:436:33Waxing Crescent6Mon
7Tue6:193.87:533.012:370.61:46-0.15:416:34Waxing Crescent7Tue
8Wed7:003.89:022.81:220.82:46-0.15:406:35Waxing Crescent8Wed
9Thu7:463.710:142.82:141.03:520.05:386:36First Quarter9Thu
10Fri8:423.511:262.83:151.25:040.05:376:37First Quarter10Fri
11Sat9:533.24:301.36:130.05:356:38First Quarter11Sat
12Sun12:322.911:21 AM3.05:511.27:150.05:346:39First Quarter12Sun
13Mon1:293.112:433.07:061.18:08-0.15:326:40Waxing Gibbous13Mon
14Tue2:193.21:503.08:100.88:540.05:316:41Waxing Gibbous14Tue
15Wed3:033.32:453.09:050.69:340.05:306:42Waxing Gibbous15Wed
16Thu3:423.43:342.99:550.410:080.25:286:43Waxing Gibbous16Thu
17Fri4:153.44:192.910:410.310:380.45:276:44Full Moon17Fri
18Sat4:433.35:032.811:240.211:020.65:256:45Full Moon18Sat
19Sun5:033.35:472.812:040.15:246:45Full Moon19Sun
20Mon5:173.46:322.712:420.15:236:46Full Moon20Mon
21Tue5:313.47:202.71:170.15:216:47Waning Gibbous21Tue
22Wed5:553.58:112.612:211.01:510.15:206:48Waning Gibbous22Wed
23Thu6:273.59:072.512:591.12:270.15:196:49Waning Gibbous23Thu
24Fri7:063.510:082.51:431.23:090.15:176:50Waning Gibbous24Fri
25Sat7:533.311:092.52:361.34:030.15:166:51Third Quarter25Sat
26Sun9:493.24:381.46:070.16:157:52Third Quarter26Sun
27Mon1:062.610:56 AM3.05:521.47:090.16:147:53Third Quarter27Mon
28Tue1:562.712:172.97:091.28:040.06:127:54Third Quarter28Tue
29Wed2:392.91:422.98:191.08:520.06:117:55Waning Crescent29Wed
30Thu3:173.12:552.99:200.79:350.16:107:56Waning Crescent30Thu
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 2:29 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 4% 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 (4% 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