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

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide (tomorrow) : in 4h 50m at 12:16 am (1.6 ft)
Next high tide (tomorrow) : 5:35 am (3.8 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:06 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - May 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:223.89:022.712:521.32:33-0.16:087:57Waning Gibbous1Wed
2Thu7:033.89:522.61:381.33:10-0.16:077:58Waning Gibbous2Thu
3Fri7:503.710:452.62:281.33:53-0.16:067:59Waning Gibbous3Fri
4Sat8:433.511:382.73:251.34:43-0.16:058:00Third Quarter4Sat
5Sun9:463.24:321.25:39-0.16:048:01Third Quarter5Sun
6Mon12:292.811:02 AM2.95:491.16:360.06:038:02Third Quarter6Mon
7Tue1:172.912:322.77:090.97:290.16:028:03Third Quarter7Tue
8Wed2:013.11:582.78:220.68:190.26:018:04Waning Crescent8Wed
9Thu2:413.43:112.79:260.29:060.46:008:05Waning Crescent9Thu
10Fri3:193.64:152.810:250.09:510.65:598:06Waning Crescent10Fri
11Sat3:563.95:152.911:21-0.210:370.95:588:06New Moon11Sat
12Sun4:324.06:132.912:14-0.35:578:07New Moon12Sun
13Mon5:104.17:103.01:06-0.35:568:08New Moon13Mon
14Tue5:494.18:063.012:141.21:55-0.35:558:09Waxing Crescent14Tue
15Wed6:314.09:013.01:061.32:43-0.35:548:10Waxing Crescent15Wed
16Thu7:153.89:563.02:011.43:30-0.25:548:11Waxing Crescent16Thu
17Fri8:043.510:493.02:581.44:16-0.15:538:12Waxing Crescent17Fri
18Sat8:593.111:413.04:001.35:02-0.15:528:13First Quarter18Sat
19Sun10:062.85:071.25:480.15:518:13First Quarter19Sun
20Mon12:303.011:27 AM2.56:181.06:330.25:518:14First Quarter20Mon
21Tue1:173.112:492.37:260.87:160.35:508:15First Quarter21Tue
22Wed1:593.22:012.38:290.57:560.55:498:16Waxing Gibbous22Wed
23Thu2:363.33:052.39:250.38:330.75:498:17Waxing Gibbous23Thu
24Fri3:073.44:022.410:160.19:090.95:488:17Waxing Gibbous24Fri
25Sat3:313.54:552.511:030.09:441.15:488:18Waxing Gibbous25Sat
26Sun3:523.65:452.611:47-0.110:221.35:478:19Full Moon26Sun
27Mon4:143.86:332.712:29-0.15:468:20Full Moon27Mon
28Tue4:443.97:202.81:08-0.25:468:20Full Moon28Tue
29Wed5:204.08:052.81:45-0.25:468:21Full Moon29Wed
30Thu6:024.08:482.812:371.52:20-0.25:458:22Waning Gibbous30Thu
31Fri6:483.99:312.81:281.52:56-0.25:458:23Waning Gibbous31Fri
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 2:55 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 100% 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 Full Moon (100% 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.

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