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

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 11:32 pm (1.7 ft)
Next high tide : in 5h 31m at 6:42 pm (3.1 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:06 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - May 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:163.76:462.812:45-0.16:097:56New Moon1Sat
2Sun5:443.97:422.712:010.91:29-0.16:087:57New Moon2Sun
3Mon6:204.08:422.712:411.12:16-0.26:077:58Waxing Crescent3Mon
4Tue7:014.19:472.71:281.33:08-0.26:067:59Waxing Crescent4Tue
5Wed7:484.010:532.72:211.44:07-0.26:058:00Waxing Crescent5Wed
6Thu8:433.711:572.83:241.55:12-0.16:038:01First Quarter6Thu
7Fri9:483.44:401.56:18-0.16:028:02First Quarter7Fri
8Sat12:572.911:12 AM3.16:051.47:19-0.16:018:03First Quarter8Sat
9Sun1:513.012:462.97:261.18:13-0.16:008:04First Quarter9Sun
10Mon2:383.22:072.88:360.79:000.05:598:05Waxing Gibbous10Mon
11Tue3:213.43:142.89:380.49:420.15:588:06Waxing Gibbous11Tue
12Wed3:583.54:122.810:330.110:190.35:578:07Waxing Gibbous12Wed
13Thu4:323.65:072.811:25-0.110:530.65:578:07Full Moon13Thu
14Fri5:003.76:002.812:13-0.25:568:08Full Moon14Fri
15Sat5:243.76:522.812:59-0.25:558:09Full Moon15Sat
16Sun5:443.77:442.81:42-0.25:548:10Full Moon16Sun
17Mon6:073.78:372.812:331.32:24-0.25:538:11Waning Gibbous17Mon
18Tue6:353.79:302.81:131.53:04-0.15:528:12Waning Gibbous18Tue
19Wed7:113.610:242.81:581.63:44-0.15:528:13Waning Gibbous19Wed
20Thu7:523.411:162.82:481.64:260.05:518:13Waning Gibbous20Thu
21Fri8:413.23:461.65:100.05:508:14Third Quarter21Fri
22Sat12:072.89:39 AM2.94:531.55:560.05:508:15Third Quarter22Sat
23Sun12:542.810:50 AM2.66:071.46:420.15:498:16Third Quarter23Sun
24Mon1:372.912:182.57:191.17:250.15:488:17Third Quarter24Mon
25Tue2:133.01:422.48:230.98:050.25:488:18Waning Crescent25Tue
26Wed2:443.12:532.49:190.68:420.45:478:18Waning Crescent26Wed
27Thu3:093.33:562.510:110.39:200.65:478:19Waning Crescent27Thu
28Fri3:333.64:552.611:000.19:590.95:468:20Waning Crescent28Fri
29Sat4:003.95:522.711:49-0.110:411.15:468:21New Moon29Sat
30Sun4:324.16:502.812:37-0.25:458:21New Moon30Sun
31Mon5:114.37:472.81:26-0.35:458:22New Moon31Mon
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 9:07 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 99% 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 (99% 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