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

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 11:02 pm (1.7 ft)
Next high tide : in 2h 17m at 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 - Oct 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:483.33:003.08:470.28:251.07:016:50Waxing Gibbous1Mon
2Tue2:073.43:453.19:380.19:300.87:026:48Waxing Gibbous2Tue
3Wed3:153.54:263.310:240.110:290.67:036:47Waxing Gibbous3Wed
4Thu4:163.65:053.511:070.111:250.47:046:45Full Moon4Thu
5Fri5:123.55:413.611:470.27:056:44Full Moon5Fri
6Sat6:083.56:173.712:190.212:280.47:066:42Full Moon6Sat
7Sun7:043.46:533.71:130.11:080.57:076:41Waning Gibbous7Sun
8Mon8:013.27:303.72:060.11:500.77:086:39Waning Gibbous8Mon
9Tue9:023.18:103.63:000.12:350.97:086:38Waning Gibbous9Tue
10Wed10:062.98:553.53:560.13:251.07:096:36Waning Gibbous10Wed
11Thu11:122.99:483.34:560.24:231.27:106:35Third Quarter11Thu
12Fri12:162.95:590.25:301.27:116:33Third Quarter12Fri
13Sat1:172.97:010.26:421.27:126:32Third Quarter13Sat
14Sun12:152.92:123.07:580.27:491.07:136:30Third Quarter14Sun
15Mon1:282.93:003.18:480.18:490.87:146:29Waning Crescent15Mon
16Tue2:302.93:423.29:310.29:420.77:156:28Waning Crescent16Tue
17Wed3:232.94:183.210:080.210:300.57:166:26Waning Crescent17Wed
18Thu4:112.94:493.210:400.411:150.47:176:25Waning Crescent18Thu
19Fri4:552.95:143.311:070.511:560.37:186:23New Moon19Fri
20Sat5:382.95:313.311:310.67:196:22New Moon20Sat
21Sun6:212.95:463.412:360.211:57 AM0.87:206:21New Moon21Sun
22Mon7:052.86:073.61:130.212:270.97:216:19New Moon22Mon
23Tue7:512.86:383.71:490.21:041.07:226:18Waxing Crescent23Tue
24Wed8:412.77:173.72:250.11:461.17:236:17Waxing Crescent24Wed
25Thu9:372.78:013.63:050.12:341.17:246:16Waxing Crescent25Thu
26Fri10:392.78:533.53:540.13:291.27:256:14First Quarter26Fri
27Sat11:422.79:553.34:550.14:351.27:266:13First Quarter27Sat
28Sun11:432.810:103.15:030.14:521.26:275:12First Quarter28Sun
29Mon12:382.96:080.16:121.06:285:11First Quarter29Mon
30Tue1:273.17:060.17:250.76:295:10Waxing Gibbous30Tue
31Wed1:033.02:103.37:570.18:280.56:305:08Waxing Gibbous31Wed
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 8:44 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