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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 8:46 pm (1.6 ft)
Next high tide : in 3h 07m at 4:36 pm (2.7 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Aug 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:043.74:582.911:010.09:481.66:098:15Waxing Gibbous1Sun
2Mon3:403.85:453.011:430.010:371.76:098:14Waxing Gibbous2Mon
3Tue4:143.86:273.112:220.06:108:13Full Moon3Tue
4Wed4:493.87:053.112:560.06:118:12Full Moon4Wed
5Thu5:263.87:393.112:061.61:250.06:128:11Full Moon5Thu
6Fri6:053.78:093.112:481.51:500.06:138:10Full Moon6Fri
7Sat6:473.68:333.11:281.32:120.06:148:09Waning Gibbous7Sat
8Sun7:323.58:563.22:101.22:370.16:158:08Waning Gibbous8Sun
9Mon8:213.39:223.32:541.13:070.26:158:07Waning Gibbous9Mon
10Tue9:193.09:563.43:440.93:440.36:168:06Third Quarter10Tue
11Wed10:302.710:383.64:460.94:280.66:178:05Third Quarter11Wed
12Thu12:022.56:050.85:200.96:188:03Third Quarter12Thu
13Fri1:332.57:310.66:191.16:198:02Third Quarter13Fri
14Sat12:243.92:492.78:460.47:261.46:208:01Waning Crescent14Sat
15Sun1:264.03:532.99:500.28:361.56:218:00Waning Crescent15Sun
16Mon2:294.14:493.010:450.19:441.56:227:58Waning Crescent16Mon
17Tue3:294.25:393.211:35-0.110:481.46:227:57New Moon17Tue
18Wed4:274.26:253.312:21-0.16:237:56New Moon18Wed
19Thu5:224.27:093.41:03-0.16:247:54New Moon19Thu
20Fri6:154.07:493.412:441.11:410.06:257:53Waxing Crescent20Fri
21Sat7:073.88:283.41:391.02:160.16:267:52Waxing Crescent21Sat
22Sun8:013.59:053.42:320.92:490.26:277:50Waxing Crescent22Sun
23Mon8:593.29:413.43:280.83:220.46:287:49Waxing Crescent23Mon
24Tue10:032.910:193.44:260.73:570.66:297:48First Quarter24Tue
25Wed11:152.710:593.35:310.64:380.96:297:46First Quarter25Wed
26Thu12:302.66:400.65:281.26:307:45First Quarter26Thu
27Fri1:422.67:470.46:291.46:317:43First Quarter27Fri
28Sat12:413.32:462.78:480.37:351.56:327:42Waxing Gibbous28Sat
29Sun1:373.43:412.99:410.28:381.56:337:40Waxing Gibbous29Sun
30Mon2:303.44:293.010:280.19:341.56:347:39Waxing Gibbous30Mon
31Tue3:183.55:123.111:080.110:241.46:357:37Waxing Gibbous31Tue
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 6:41 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 spring phase. Tonight's moon is 10% 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 Waning Crescent (10% 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