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

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 4h 35m at 4:25 pm (0.9 ft)
Next high tide : 10:35 pm (3.9 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:12 am
Moon phase : Third Quarter (53% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Nov 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:143.04:403.910:420.77:326:07New Moon1Mon
2Tue6:133.05:144.112:14-0.211:23 AM1.07:336:05New Moon2Tue
3Wed7:132.95:534.21:08-0.312:091.27:346:04Waxing Crescent3Wed
4Thu8:152.96:374.22:03-0.31:001.47:356:03Waxing Crescent4Thu
5Fri9:182.97:264.02:59-0.31:581.57:366:02Waxing Crescent5Fri
6Sat10:212.98:223.73:57-0.23:021.57:376:01Waxing Crescent6Sat
7Sun10:222.98:303.33:57-0.13:161.56:385:00First Quarter7Sun
8Mon11:202.99:572.94:56-0.14:361.36:395:00First Quarter8Mon
9Tue12:133.05:51-0.15:541.06:404:59First Quarter9Tue
10Wed1:013.16:420.07:050.76:414:58Waxing Gibbous10Wed
11Thu12:452.61:433.27:260.18:060.46:434:57Waxing Gibbous11Thu
12Fri1:502.52:203.38:050.39:010.26:444:56Waxing Gibbous12Fri
13Sat2:472.52:503.48:390.59:500.06:454:55Waxing Gibbous13Sat
14Sun3:402.53:153.59:100.810:36-0.16:464:54Waxing Gibbous14Sun
15Mon4:312.63:333.69:381.111:19-0.16:474:54Full Moon15Mon
16Tue5:212.63:493.710:081.311:59-0.16:484:53Full Moon16Tue
17Wed6:112.74:113.810:421.56:494:52Full Moon17Wed
18Thu7:002.74:423.812:370.011:21 AM1.66:504:52Full Moon18Thu
19Fri7:492.75:193.81:120.012:051.76:514:51Waning Gibbous19Fri
20Sat8:372.76:033.71:450.012:531.76:524:51Waning Gibbous20Sat
21Sun9:242.66:513.52:190.01:451.66:534:50Waning Gibbous21Sun
22Mon10:092.67:463.32:56-0.12:431.56:544:49Waning Gibbous22Mon
23Tue10:532.68:503.03:38-0.13:481.36:554:49Third Quarter23Tue
24Wed11:332.710:052.74:24-0.15:001.16:564:49Third Quarter24Wed
25Thu12:102.85:120.06:120.86:574:48Third Quarter25Thu
26Fri12:433.15:590.17:190.56:584:48Waning Crescent26Fri
27Sat12:532.51:153.46:440.38:210.26:594:47Waning Crescent27Sat
28Sun2:062.61:483.77:290.69:19-0.17:004:47Waning Crescent28Sun
29Mon3:132.72:234.08:150.910:15-0.37:014:47Waning Crescent29Mon
30Tue4:152.83:024.29:031.211:10-0.47:024:47New Moon30Tue
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 7:30 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 neap phase. Tonight's moon is 53% 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 minimum.

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 Third Quarter (53% illuminated). This places Prisoners Point, San Joaquin River, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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