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

TIDE TIMES for Sunday, July 19, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 4:09 am (0.9 ft)
Next high tide (tomorrow) : in 14m at 10:04 pm (3.4 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waxing Crescent (24% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Feb 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:102.511:43 AM3.55:210.97:330.27:095:29First Quarter1Mon
2Tue1:272.512:373.66:241.28:370.07:085:31Waxing Gibbous2Tue
3Wed2:342.71:303.77:291.49:32-0.17:075:32Waxing Gibbous3Wed
4Thu3:322.92:203.78:311.510:20-0.17:065:33Waxing Gibbous4Thu
5Fri4:223.13:043.79:271.511:02-0.17:055:34Waxing Gibbous5Fri
6Sat5:073.23:453.710:171.511:40-0.17:045:35Full Moon6Sat
7Sun5:473.24:233.611:031.47:035:36Full Moon7Sun
8Mon6:233.15:003.512:12-0.111:46 AM1.37:025:37Full Moon8Mon
9Tue6:553.15:383.412:380.012:261.27:015:38Full Moon9Tue
10Wed7:213.06:173.212:570.01:041.07:005:40Waning Gibbous10Wed
11Thu7:413.07:003.01:130.11:420.96:595:41Waning Gibbous11Thu
12Fri7:563.07:492.71:340.22:240.86:585:42Waning Gibbous12Fri
13Sat8:143.18:492.52:020.33:120.86:575:43Waning Gibbous13Sat
14Sun8:433.210:112.32:370.54:140.76:555:44Third Quarter14Sun
15Mon9:223.411:472.23:200.85:360.66:545:45Third Quarter15Mon
16Tue10:103.54:121.26:580.56:535:46Third Quarter16Tue
17Wed1:112.311:07 AM3.65:151.48:050.36:525:47Third Quarter17Wed
18Thu2:182.512:123.76:261.69:010.16:515:48Waning Crescent18Thu
19Fri3:132.71:203.87:391.69:50-0.16:495:49Waning Crescent19Fri
20Sat4:002.92:254.08:461.510:34-0.26:485:50Waning Crescent20Sat
21Sun4:423.03:254.09:461.311:15-0.36:475:51New Moon21Sun
22Mon5:203.14:214.010:421.111:54-0.36:455:53New Moon22Mon
23Tue5:563.25:163.911:370.86:445:54New Moon23Tue
24Wed6:313.36:113.712:30-0.212:310.66:435:55Waxing Crescent24Wed
25Thu7:053.47:083.41:05-0.11:250.46:415:56Waxing Crescent25Thu
26Fri7:403.58:113.11:390.12:230.36:405:57Waxing Crescent26Fri
27Sat8:183.59:232.82:160.43:280.36:395:58Waxing Crescent27Sat
28Sun9:003.510:432.62:580.74:410.36:375:59First Quarter28Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415149)

Common Questions About Prisoners Point, San Joaquin River, CA Tides

Show All
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 1:06 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 transitional phase. Tonight's moon is 24% 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 Waxing Crescent (24% 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