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

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 46m at 6:52 am (0.7 ft)
Next high tide : 12:17 pm (2.5 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Sep 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:183.44:573.110:550.010:211.36:367:35Waxing Gibbous1Tue
2Wed4:033.45:313.111:280.111:071.16:377:34Full Moon2Wed
3Thu4:443.46:003.111:560.111:491.06:387:32Full Moon3Thu
4Fri5:233.36:233.212:190.26:387:31Full Moon4Fri
5Sat6:023.26:393.312:280.812:380.46:397:29Full Moon5Sat
6Sun6:433.16:543.41:050.712:590.56:407:28Waning Gibbous6Sun
7Mon7:283.07:163.61:420.61:250.66:417:26Waning Gibbous7Mon
8Tue8:192.87:473.82:200.51:580.86:427:25Waning Gibbous8Tue
9Wed9:212.68:253.93:050.52:381.06:437:23Waning Gibbous9Wed
10Thu10:392.59:123.94:020.53:261.26:447:21Third Quarter10Thu
11Fri12:052.45:240.54:241.46:447:20Third Quarter11Fri
12Sat1:222.56:530.55:371.56:457:18Third Quarter12Sat
13Sun2:262.78:070.37:011.56:467:17Third Quarter13Sun
14Mon12:393.63:182.89:060.18:211.36:477:15Waning Crescent14Mon
15Tue2:013.74:033.09:560.09:281.16:487:14Waning Crescent15Tue
16Wed3:113.74:443.210:390.010:290.86:497:12Waning Crescent16Wed
17Thu4:113.75:203.311:180.011:250.56:507:10New Moon17Thu
18Fri5:063.65:543.511:530.26:507:09New Moon18Fri
19Sat6:003.56:253.612:180.412:270.36:517:07New Moon19Sat
20Sun6:533.36:553.71:100.212:590.66:527:06Waxing Crescent20Sun
21Mon7:493.17:233.72:020.21:310.86:537:04Waxing Crescent21Mon
22Tue8:473.07:523.72:530.22:071.06:547:03Waxing Crescent22Tue
23Wed9:512.88:273.63:480.22:481.26:557:01Waxing Crescent23Wed
24Thu10:582.79:093.54:470.33:381.46:567:00First Quarter24Thu
25Fri12:062.75:510.34:391.56:566:58First Quarter25Fri
26Sat1:092.76:550.35:531.66:576:56First Quarter26Sat
27Sun2:052.87:540.27:101.56:586:55First Quarter27Sun
28Mon12:453.02:542.98:440.18:161.26:596:53Waxing Gibbous28Mon
29Tue1:582.93:353.09:270.19:131.07:006:52Waxing Gibbous29Tue
30Wed2:563.04:113.010:030.110:030.87:016:50Waxing Gibbous30Wed
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 9:34 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 neap phase. Tonight's moon is 59% 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 First Quarter (59% 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.

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