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

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 8h 18m at 12:15 pm (-0.2 ft)
Next high tide : 6:27 pm (3.0 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:54 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Apr 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:323.26:022.912:230.35:506:29Full Moon1Tue
2Wed5:433.36:442.812:570.35:486:30Waning Gibbous2Wed
3Thu6:023.47:312.712:170.71:300.25:476:31Waning Gibbous3Thu
4Fri6:303.58:252.612:510.82:050.25:456:32Waning Gibbous4Fri
5Sat7:073.59:292.51:310.92:470.25:446:33Waning Gibbous5Sat
6Sun7:513.510:402.52:191.13:440.25:426:34Third Quarter6Sun
7Mon8:433.311:492.53:151.24:580.25:416:35Third Quarter7Mon
8Tue9:463.24:241.36:130.25:396:35Third Quarter8Tue
9Wed12:492.711:03 AM3.15:431.37:150.15:386:36Third Quarter9Wed
10Thu1:412.812:293.17:011.18:080.05:366:37Waning Crescent10Thu
11Fri2:253.01:453.28:080.88:550.05:356:38Waning Crescent11Fri
12Sat3:053.22:503.39:080.69:380.05:346:39Waning Crescent12Sat
13Sun3:413.43:493.310:030.310:190.15:326:40New Moon13Sun
14Mon4:163.64:453.310:570.110:590.35:316:41New Moon14Mon
15Tue4:503.75:423.211:50-0.111:400.55:296:42New Moon15Tue
16Wed5:253.86:403.112:42-0.25:286:43Waxing Crescent16Wed
17Thu6:013.87:403.012:220.71:35-0.25:276:44Waxing Crescent17Thu
18Fri6:403.88:432.91:070.92:30-0.15:256:45Waxing Crescent18Fri
19Sat7:243.69:492.91:571.03:28-0.15:246:46Waxing Crescent19Sat
20Sun8:143.410:542.92:551.24:300.05:226:47First Quarter20Sun
21Mon9:163.111:572.94:041.35:330.05:216:48First Quarter21Mon
22Tue10:372.85:191.26:320.05:206:48First Quarter22Tue
23Wed12:533.012:002.76:311.17:250.05:186:49First Quarter23Wed
24Thu1:433.11:112.77:360.98:110.15:176:50Waxing Gibbous24Thu
25Fri2:273.22:092.78:320.68:500.25:166:51Waxing Gibbous25Fri
26Sat3:053.33:002.79:220.49:240.35:156:52Waxing Gibbous26Sat
27Sun4:383.34:472.711:080.310:530.56:137:53Waxing Gibbous27Sun
28Mon5:043.35:322.711:510.111:180.66:127:54Full Moon28Mon
29Tue5:233.36:162.712:310.16:117:55Full Moon29Tue
30Wed5:363.47:012.71:090.06:107:56Full Moon30Wed
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 3:21 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 1% 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 New Moon (1% 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