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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 6:06 pm (1.1 ft)
Next high tide : in 39m at 1:16 pm (2.4 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 6:01 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Feb 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:523.04:083.810:461.57:105:29New Moon1Wed
2Thu6:243.04:523.812:09-0.211:29 AM1.37:095:30New Moon2Thu
3Fri6:513.05:373.612:35-0.212:121.17:085:31New Moon3Fri
4Sat7:153.06:243.51:00-0.212:550.97:075:32Waxing Crescent4Sat
5Sun7:383.17:153.21:25-0.11:420.87:065:33Waxing Crescent5Sun
6Mon8:053.38:142.81:550.02:350.77:055:35Waxing Crescent6Mon
7Tue8:393.49:302.52:300.33:400.67:045:36First Quarter7Tue
8Wed9:203.611:082.33:110.65:040.57:035:37First Quarter8Wed
9Thu10:093.74:021.06:350.47:025:38First Quarter9Thu
10Fri12:432.311:09 AM3.85:051.37:530.27:015:39First Quarter10Fri
11Sat2:012.512:173.86:211.58:570.06:595:40Waxing Gibbous11Sat
12Sun3:052.81:273.97:411.69:51-0.16:585:41Waxing Gibbous12Sun
13Mon3:583.02:323.98:521.610:39-0.26:575:42Waxing Gibbous13Mon
14Tue4:453.13:293.99:551.411:21-0.36:565:43Full Moon14Tue
15Wed5:273.24:213.810:501.211:59-0.26:555:45Full Moon15Wed
16Thu6:063.25:093.711:411.06:545:46Full Moon16Thu
17Fri6:423.25:563.512:32-0.212:300.96:525:47Waning Gibbous17Fri
18Sat7:133.26:443.21:010.01:170.76:515:48Waning Gibbous18Sat
19Sun7:413.27:352.91:250.12:050.66:505:49Waning Gibbous19Sun
20Mon8:053.28:332.61:480.32:560.66:495:50Waning Gibbous20Mon
21Tue8:273.29:432.42:150.63:540.56:475:51Third Quarter21Tue
22Wed8:533.311:032.32:480.95:020.56:465:52Third Quarter22Wed
23Thu9:293.33:321.26:150.46:455:53Third Quarter23Thu
24Fri12:232.310:17 AM3.34:281.57:230.36:435:54Third Quarter24Fri
25Sat1:342.511:18 AM3.35:401.78:200.26:425:55Third Quarter25Sat
26Sun2:322.712:293.36:571.79:090.06:415:56Waning Crescent26Sun
27Mon3:202.81:343.48:041.69:51-0.16:395:57Waning Crescent27Mon
28Tue4:012.92:303.59:001.510:27-0.16:385:58Waning Crescent28Tue
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 3:41 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 transitional phase. Tonight's moon is 63% 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 First Quarter (63% 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