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

TIDE TIMES for Thursday, June 4, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide (tomorrow) : 3:01 am (1.5 ft)
Next high tide : in 4h 38m at 10:24 pm (2.8 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Aug 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:123.94:112.910:160.09:051.66:098:15Waxing Gibbous1Tue
2Wed3:073.95:023.111:05-0.110:051.66:108:14Waxing Gibbous2Wed
3Thu3:553.95:483.211:49-0.110:591.56:118:13Full Moon3Thu
4Fri4:393.86:283.212:27-0.16:128:12Full Moon4Fri
5Sat5:193.77:043.212:590.06:138:10Full Moon5Sat
6Sun5:573.57:363.212:331.31:260.16:148:09Full Moon6Sun
7Mon6:363.48:023.21:151.21:480.26:158:08Waning Gibbous7Mon
8Tue7:163.28:213.21:561.12:050.36:158:07Waning Gibbous8Tue
9Wed7:593.08:383.32:351.02:250.46:168:06Waning Gibbous9Wed
10Thu8:502.78:593.43:170.92:530.66:178:05Waning Gibbous10Thu
11Fri9:532.59:293.64:050.93:270.86:188:04Third Quarter11Fri
12Sat11:162.310:093.75:070.84:101.16:198:02Third Quarter12Sat
13Sun12:472.36:280.85:011.46:208:01Third Quarter13Sun
14Mon2:052.47:470.66:041.66:218:00Third Quarter14Mon
15Tue3:102.68:540.47:141.76:227:59Waning Crescent15Tue
16Wed1:013.94:032.79:480.28:251.66:227:57Waning Crescent16Wed
17Thu2:084.04:472.910:350.19:311.56:237:56Waning Crescent17Thu
18Fri3:124.05:273.011:170.010:311.36:247:55Waning Crescent18Fri
19Sat4:114.16:033.111:55-0.111:281.16:257:53New Moon19Sat
20Sun5:074.16:373.312:31-0.16:267:52New Moon20Sun
21Mon6:014.07:093.412:240.81:050.06:277:51New Moon21Mon
22Tue6:563.87:423.61:190.61:380.26:287:49Waxing Crescent22Tue
23Wed7:543.58:163.72:150.52:120.46:297:48Waxing Crescent23Wed
24Thu8:573.28:543.83:140.42:490.66:297:46Waxing Crescent24Thu
25Fri10:072.99:373.84:190.43:320.96:307:45First Quarter25Fri
26Sat11:242.710:293.85:300.44:231.16:317:43First Quarter26Sat
27Sun12:412.76:440.45:261.46:327:42First Quarter27Sun
28Mon1:532.87:550.36:421.56:337:41First Quarter28Mon
29Tue12:493.62:552.98:570.17:581.56:347:39Waxing Gibbous29Tue
30Wed2:013.53:483.19:500.09:041.46:357:38Waxing Gibbous30Wed
31Thu3:013.54:333.210:350.010:011.36:357:36Waxing 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 12:42 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 83% 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 Gibbous (83% 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