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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 8:59 pm (1.8 ft)
Next high tide : in 1h 02m at 4:30 pm (2.8 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Jun 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:413.11:192.37:540.97:460.25:458:22Third Quarter1Thu
2Fri2:203.22:292.38:550.68:220.45:448:23Waning Crescent2Fri
3Sat2:533.33:312.39:490.38:550.75:448:24Waning Crescent3Sat
4Sun3:203.44:282.410:390.19:271.05:448:24Waning Crescent4Sun
5Mon3:413.65:222.511:250.010:001.35:438:25Waning Crescent5Mon
6Tue4:003.76:152.612:08-0.15:438:25New Moon6Tue
7Wed4:223.97:062.712:49-0.15:438:26New Moon7Wed
8Thu4:534.07:562.71:27-0.15:438:27New Moon8Thu
9Fri5:304.18:432.812:041.82:04-0.15:428:27New Moon9Fri
10Sat6:134.19:282.812:541.82:39-0.25:428:28Waxing Crescent10Sat
11Sun7:014.010:112.81:461.73:15-0.25:428:28Waxing Crescent11Sun
12Mon7:533.810:542.82:421.63:53-0.25:428:29Waxing Crescent12Mon
13Tue8:513.511:352.93:431.54:34-0.25:428:29First Quarter13Tue
14Wed9:573.24:521.35:18-0.15:428:30First Quarter14Wed
15Thu12:163.011:15 AM2.86:071.06:040.05:428:30First Quarter15Thu
16Fri12:563.212:422.67:220.76:510.35:428:30First Quarter16Fri
17Sat1:353.42:062.58:330.47:390.55:428:31Waxing Gibbous17Sat
18Sun2:133.73:202.69:370.28:260.85:428:31Waxing Gibbous18Sun
19Mon2:504.04:272.710:37-0.19:151.25:438:31Waxing Gibbous19Mon
20Tue3:294.25:302.811:33-0.210:081.45:438:32Full Moon20Tue
21Wed4:084.36:292.912:26-0.35:438:32Full Moon21Wed
22Thu4:504.37:253.01:16-0.35:438:32Full Moon22Thu
23Fri5:344.28:173.112:011.82:02-0.35:438:32Full Moon23Fri
24Sat6:194.09:073.11:001.82:46-0.25:448:32Waning Gibbous24Sat
25Sun7:073.89:533.11:581.73:26-0.25:448:32Waning Gibbous25Sun
26Mon7:583.510:383.12:551.64:04-0.15:448:33Waning Gibbous26Mon
27Tue8:553.111:203.13:551.54:390.05:458:33Third Quarter27Tue
28Wed10:002.74:591.35:140.15:458:33Third Quarter28Wed
29Thu12:013.111:20 AM2.46:081.15:490.35:458:33Third Quarter29Thu
30Fri12:393.212:442.27:180.96:260.65:468:33Third Quarter30Fri
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 6:44 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 spring phase. Tonight's moon is 87% 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 Gibbous (87% 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