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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 2h 47m at 8:15 am (0.5 ft)
Next high tide : 2:11 pm (2.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Oct 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:473.26:143.912:540.112:250.77:026:48Waxing Crescent1Thu
2Fri7:453.06:514.01:460.01:060.97:036:46Waxing Crescent2Fri
3Sat8:482.97:334.12:410.01:521.17:046:45Waxing Crescent3Sat
4Sun9:562.88:223.93:420.12:441.37:056:43Waxing Crescent4Sun
5Mon11:082.79:213.74:500.13:481.47:066:42First Quarter5Mon
6Tue12:172.86:000.15:051.47:076:40First Quarter6Tue
7Wed1:212.97:080.16:311.37:086:39First Quarter7Wed
8Thu12:113.22:163.08:070.07:491.17:096:37Waxing Gibbous8Thu
9Fri1:373.13:043.18:580.08:560.87:106:36Waxing Gibbous9Fri
10Sat2:463.03:463.39:420.09:550.57:106:34Waxing Gibbous10Sat
11Sun3:433.04:233.410:200.110:470.37:116:33Waxing Gibbous11Sun
12Mon4:343.04:553.410:540.311:350.27:126:32Full Moon12Mon
13Tue5:222.95:213.511:240.67:136:30Full Moon13Tue
14Wed6:102.85:413.512:200.111:51 AM0.87:146:29Full Moon14Wed
15Thu6:582.85:573.61:030.112:171.07:156:27Full Moon15Thu
16Fri7:472.76:183.61:430.112:461.27:166:26Waning Gibbous16Fri
17Sat8:392.76:463.72:210.21:221.47:176:25Waning Gibbous17Sat
18Sun9:332.67:223.62:590.22:041.57:186:23Waning Gibbous18Sun
19Mon10:302.68:063.53:400.22:531.57:196:22Waning Gibbous19Mon
20Tue11:282.68:573.34:260.23:501.57:206:21Third Quarter20Tue
21Wed12:242.65:210.24:561.57:216:19Third Quarter21Wed
22Thu1:142.66:180.26:101.37:226:18Third Quarter22Thu
23Fri1:572.77:100.17:201.17:236:17Third Quarter23Fri
24Sat12:332.82:342.87:550.18:230.87:246:15Waning Crescent24Sat
25Sun1:512.83:053.08:350.29:190.57:256:14Waning Crescent25Sun
26Mon2:582.83:313.29:110.310:120.27:266:13Waning Crescent26Mon
27Tue3:582.93:573.59:480.511:040.07:276:12Waning Crescent27Tue
28Wed4:562.94:253.810:250.711:55-0.17:286:11New Moon28Wed
29Thu5:532.94:584.011:060.97:296:09New Moon29Thu
30Fri6:512.95:374.212:48-0.211:52 AM1.17:306:08New Moon30Fri
31Sat7:502.96:204.21:41-0.312:421.37:316:07Waxing Crescent31Sat
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 11:13 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 28% 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 Crescent (28% 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