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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 2:25 pm (-0.3 ft)
Next high tide : in 1h 31m at 6:34 am (4.1 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Nov 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:392.77:343.22:500.22:281.36:325:07Waning Gibbous1Tue
2Wed10:332.78:283.03:310.23:281.36:335:06Third Quarter2Wed
3Thu11:252.79:332.84:200.24:361.26:345:05Third Quarter3Thu
4Fri12:132.75:120.25:471.06:355:04Third Quarter4Fri
5Sat12:562.96:040.26:530.86:365:03Third Quarter5Sat
6Sun12:142.61:333.06:510.37:520.66:375:02Waning Crescent6Sun
7Mon1:262.72:043.27:350.48:460.36:385:01Waning Crescent7Mon
8Tue2:272.82:333.48:160.59:370.16:395:00Waning Crescent8Tue
9Wed3:242.93:023.78:580.710:260.06:404:59New Moon9Wed
10Thu4:192.93:363.99:410.811:16-0.26:414:58New Moon10Thu
11Fri5:133.04:144.010:280.96:434:57New Moon11Fri
12Sat6:083.04:564.112:06-0.211:18 AM1.16:444:56New Moon12Sat
13Sun7:043.05:434.012:56-0.312:111.16:454:55Waxing Crescent13Sun
14Mon8:023.06:343.91:48-0.31:091.16:464:55Waxing Crescent14Mon
15Tue9:003.07:323.62:41-0.22:131.16:474:54Waxing Crescent15Tue
16Wed9:593.08:423.23:36-0.23:231.16:484:53First Quarter16Wed
17Thu10:573.110:062.94:32-0.14:401.06:494:53First Quarter17Thu
18Fri11:523.211:332.75:290.05:560.86:504:52First Quarter18Fri
19Sat12:443.36:230.17:060.56:514:51Waxing Gibbous19Sat
20Sun12:502.61:313.47:130.28:090.26:524:51Waxing Gibbous20Sun
21Mon1:552.72:133.58:000.49:040.06:534:50Waxing Gibbous21Mon
22Tue2:532.72:493.68:420.69:55-0.16:544:50Waxing Gibbous22Tue
23Wed3:462.83:213.69:210.810:42-0.16:554:49Full Moon23Wed
24Thu4:362.83:483.69:591.011:26-0.16:564:49Full Moon24Thu
25Fri5:242.84:113.610:351.26:574:48Full Moon25Fri
26Sat6:102.94:353.612:06-0.111:12 AM1.36:584:48Full Moon26Sat
27Sun6:552.95:053.612:42-0.111:51 AM1.46:594:48Waning Gibbous27Sun
28Mon7:392.85:413.51:150.012:321.47:004:47Waning Gibbous28Mon
29Tue8:222.86:213.41:430.01:171.37:014:47Waning Gibbous29Tue
30Wed9:052.87:073.22:090.02:051.37:024:47Waning 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 10:29 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 8% 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 Waxing Crescent (8% 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.

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