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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 8:46 pm (1.6 ft)
Next high tide : in 5h 54m at 4:36 pm (2.7 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Oct 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:303.25:303.211:260.211:350.77:016:49Full Moon1Fri
2Sat5:143.25:523.211:530.37:026:48Full Moon2Sat
3Sun5:593.26:123.412:160.512:200.47:036:46Full Moon3Sun
4Mon6:463.16:353.612:570.412:500.57:046:45Full Moon4Mon
5Tue7:383.07:063.71:390.31:240.77:056:43Waning Gibbous5Tue
6Wed8:352.97:443.82:250.22:050.87:066:42Waning Gibbous6Wed
7Thu9:432.78:283.83:180.22:521.07:076:40Waning Gibbous7Thu
8Fri10:582.79:213.74:230.23:481.27:086:39Third Quarter8Fri
9Sat12:132.75:410.24:571.37:096:37Third Quarter9Sat
10Sun1:222.86:570.26:201.37:106:36Third Quarter10Sun
11Mon2:222.98:040.17:401.27:116:34Waning Crescent11Mon
12Tue1:133.33:133.19:010.08:511.07:126:33Waning Crescent12Tue
13Wed2:293.33:583.39:490.09:520.77:126:31Waning Crescent13Wed
14Thu3:323.34:393.410:330.010:470.57:136:30Waning Crescent14Thu
15Fri4:273.35:153.411:110.111:390.37:146:29New Moon15Fri
16Sat5:193.25:473.511:460.37:156:27New Moon16Sat
17Sun6:093.16:153.512:270.212:180.57:166:26New Moon17Sun
18Mon6:593.06:373.51:140.112:480.77:176:24New Moon18Mon
19Tue7:512.96:593.52:000.11:180.97:186:23Waxing Crescent19Tue
20Wed8:452.87:233.52:440.11:521.17:196:22Waxing Crescent20Wed
21Thu9:432.77:553.43:300.12:331.37:206:20Waxing Crescent21Thu
22Fri10:452.78:363.34:190.23:211.47:216:19Waxing Crescent22Fri
23Sat11:472.79:253.15:130.24:201.57:226:18First Quarter23Sat
24Sun12:462.76:110.25:311.57:236:17First Quarter24Sun
25Mon1:402.87:080.26:471.47:246:15First Quarter25Mon
26Tue2:272.97:590.17:551.27:256:14First Quarter26Tue
27Wed1:152.73:073.08:440.18:530.97:266:13Waxing Gibbous27Wed
28Thu2:252.83:413.19:220.19:450.77:276:12Waxing Gibbous28Thu
29Fri3:222.84:093.29:560.210:320.57:286:10Waxing Gibbous29Fri
30Sat4:152.94:333.310:280.311:170.37:296:09Waxing Gibbous30Sat
31Sun4:052.93:553.59:590.511:010.16:315:08Full Moon31Sun
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 6:41 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 10% 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 (10% 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