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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 8:59 pm (1.8 ft)
Next high tide : in 5h 35m at 4:30 pm (2.8 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Oct 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:153.54:483.010:360.010:330.77:016:50Waning Crescent1Sun
2Mon4:133.55:163.211:100.011:250.57:026:48New Moon2Mon
3Tue5:083.55:433.411:430.17:036:47New Moon3Tue
4Wed6:033.46:103.612:160.212:160.37:046:45New Moon4Wed
5Thu6:593.36:413.81:080.112:510.67:056:44Waxing Crescent5Thu
6Fri7:593.17:163.92:030.01:300.87:066:42Waxing Crescent6Fri
7Sat9:052.97:563.93:000.02:141.07:076:41Waxing Crescent7Sat
8Sun10:162.88:433.84:030.03:051.37:076:39First Quarter8Sun
9Mon11:302.79:403.65:120.14:081.57:086:38First Quarter9Mon
10Tue12:412.86:240.15:271.57:096:36First Quarter10Tue
11Wed1:442.97:300.06:521.57:106:35First Quarter11Wed
12Thu12:323.12:383.08:290.08:071.27:116:33Waxing Gibbous12Thu
13Fri1:543.13:253.29:18-0.19:111.07:126:32Waxing Gibbous13Fri
14Sat2:583.04:053.210:010.010:050.77:136:31Waxing Gibbous14Sat
15Sun3:503.04:403.310:370.110:540.57:146:29Waxing Gibbous15Sun
16Mon4:382.95:103.311:080.211:390.37:156:28Full Moon16Mon
17Tue5:222.85:333.311:330.47:166:26Full Moon17Tue
18Wed6:072.85:493.312:210.311:55 AM0.77:176:25Full Moon18Wed
19Thu6:522.76:013.51:010.212:160.97:186:24Full Moon19Thu
20Fri7:402.66:193.61:370.212:421.17:196:22Waning Gibbous20Fri
21Sat8:322.66:463.72:120.21:151.37:206:21Waning Gibbous21Sat
22Sun9:292.57:213.72:450.21:551.47:216:20Waning Gibbous22Sun
23Mon10:322.58:043.63:240.22:421.67:226:18Waning Gibbous23Mon
24Tue11:362.58:543.54:140.23:391.67:236:17Third Quarter24Tue
25Wed12:362.55:190.24:481.67:246:16Third Quarter25Wed
26Thu1:302.66:280.26:071.57:256:15Third Quarter26Thu
27Fri2:152.77:280.17:231.37:266:13Third Quarter27Fri
28Sat12:343.02:532.88:170.08:290.97:276:12Waning Crescent28Sat
29Sun1:553.02:263.08:000.08:270.66:285:11Waning Crescent29Sun
30Mon2:043.02:553.28:380.19:220.36:295:10Waning Crescent30Mon
31Tue3:053.13:233.59:150.310:150.06:305:09New Moon31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415149)

Common Questions About Prisoners Point, San Joaquin River, CA Tides

Show All
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 6:44 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 87% 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 Waxing Gibbous (87% 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