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

TIDE TIMES for Monday, June 15, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide (tomorrow) : in 37m at 11:02 pm (1.7 ft)
Next high tide : 4:47 am (4.5 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:42 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Jul 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:224.16:463.012:39-0.15:478:33Full Moon1Wed
2Thu5:064.17:303.01:18-0.15:478:32Full Moon2Thu
3Fri5:534.18:123.112:251.41:55-0.25:488:32Full Moon3Fri
4Sat6:434.08:533.21:191.32:32-0.25:488:32Waning Gibbous4Sat
5Sun7:363.89:353.32:151.23:09-0.25:498:32Waning Gibbous5Sun
6Mon8:343.510:193.43:151.13:49-0.15:498:32Waning Gibbous6Mon
7Tue9:413.211:063.54:211.04:330.15:508:31Third Quarter7Tue
8Wed11:012.911:563.65:350.95:220.35:508:31Third Quarter8Wed
9Thu12:272.76:520.76:160.65:518:31Third Quarter9Thu
10Fri12:483.71:472.78:060.57:140.85:528:31Waning Crescent10Fri
11Sat1:393.92:592.79:120.38:141.05:528:30Waning Crescent11Sat
12Sun2:294.04:012.910:110.19:121.25:538:30Waning Crescent12Sun
13Mon3:164.04:583.011:040.010:081.35:548:29Waning Crescent13Mon
14Tue4:004.15:503.111:52-0.111:021.45:548:29New Moon14Tue
15Wed4:414.06:383.212:36-0.15:558:28New Moon15Wed
16Thu5:213.97:233.21:150.05:568:28New Moon16Thu
17Fri6:003.88:043.212:421.41:500.05:578:27New Moon17Fri
18Sat6:403.78:423.21:281.42:200.15:578:27Waxing Crescent18Sat
19Sun7:223.59:173.22:141.32:450.15:588:26Waxing Crescent19Sun
20Mon8:073.29:503.23:001.23:080.25:598:25Waxing Crescent20Mon
21Tue8:573.010:203.23:491.13:340.36:008:25Waxing Crescent21Tue
22Wed9:572.710:513.24:451.14:080.56:008:24First Quarter22Wed
23Thu11:112.511:263.35:491.04:490.76:018:23First Quarter23Thu
24Fri12:342.46:590.85:370.96:028:23First Quarter24Fri
25Sat12:063.41:512.48:060.76:321.16:038:22First Quarter25Sat
26Sun12:513.52:582.59:060.57:301.36:048:21Waxing Gibbous26Sun
27Mon1:393.73:562.79:590.38:291.46:048:20Waxing Gibbous27Mon
28Tue2:283.94:472.810:460.29:271.56:058:19Waxing Gibbous28Tue
29Wed3:184.05:333.011:300.110:241.46:068:18Full Moon29Wed
30Thu4:084.16:163.112:110.06:078:17Full Moon30Thu
31Fri4:584.26:563.212:50-0.16:088:16Full Moon31Fri
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 1:54 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 0% 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 (0% 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