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

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 12m at 3:05 pm (0.3 ft)
Next high tide : 9:16 pm (3.5 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Aug 2096

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:593.85:383.011:300.010:071.86:108:14Waxing Gibbous1Wed
2Thu3:423.96:203.012:090.06:118:13Full Moon2Thu
3Fri4:264.06:583.112:45-0.16:128:12Full Moon3Fri
4Sat5:114.07:323.11:17-0.16:138:11Full Moon4Sat
5Sun5:574.08:023.112:341.51:45-0.16:148:10Full Moon5Sun
6Mon6:453.88:293.11:201.32:12-0.16:148:09Waning Gibbous6Mon
7Tue7:353.68:563.32:071.12:410.06:158:08Waning Gibbous7Tue
8Wed8:303.39:263.42:580.93:130.16:168:07Waning Gibbous8Wed
9Thu9:333.010:033.63:560.83:500.46:178:05Third Quarter9Thu
10Fri10:522.710:463.75:060.74:340.76:188:04Third Quarter10Fri
11Sat12:232.56:290.65:261.06:198:03Third Quarter11Sat
12Sun1:502.67:510.56:281.36:208:02Third Quarter12Sun
13Mon12:363.93:042.79:030.37:391.56:208:00Waning Crescent13Mon
14Tue1:394.04:072.910:050.18:511.66:217:59Waning Crescent14Tue
15Wed2:434.15:013.110:590.09:581.66:227:58Waning Crescent15Wed
16Thu3:414.15:493.211:46-0.110:591.56:237:57New Moon16Thu
17Fri4:354.16:343.312:29-0.16:247:55New Moon17Fri
18Sat5:253.97:143.31:07-0.16:257:54New Moon18Sat
19Sun6:133.87:503.312:461.21:400.06:267:53New Moon19Sun
20Mon6:593.68:233.21:361.12:080.16:277:51Waxing Crescent20Mon
21Tue7:473.38:513.22:231.02:320.36:277:50Waxing Crescent21Tue
22Wed8:383.09:163.23:120.92:560.56:287:48Waxing Crescent22Wed
23Thu9:372.79:383.34:030.83:230.76:297:47Waxing Crescent23Thu
24Fri10:482.510:063.35:020.73:580.96:307:46First Quarter24Fri
25Sat12:072.46:100.74:431.26:317:44First Quarter25Sat
26Sun1:242.47:210.65:391.56:327:43First Quarter26Sun
27Mon2:332.68:270.46:461.76:337:41First Quarter27Mon
28Tue12:303.43:312.89:230.37:561.76:337:40Waxing Gibbous28Tue
29Wed1:353.54:202.910:110.29:001.76:347:38Waxing Gibbous29Wed
30Thu2:353.65:023.010:530.19:561.66:357:37Waxing Gibbous30Thu
31Fri3:303.75:393.011:310.010:471.46:367:35Waxing Gibbous31Fri
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 6:10 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 transitional phase. Tonight's moon is 74% 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 Gibbous (74% 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