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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 2h 00m at 3:16 pm (-0.1 ft)
Next high tide : 10:00 pm (3.0 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Oct 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:262.96:033.412:390.412:150.87:026:49Full Moon1Fri
2Sat7:092.86:193.51:170.412:390.97:036:47Full Moon2Sat
3Sun7:552.86:433.61:520.41:081.07:036:46Waning Gibbous3Sun
4Mon8:442.77:153.72:250.31:441.17:046:44Waning Gibbous4Mon
5Tue9:402.67:553.72:590.32:271.27:056:43Waning Gibbous5Tue
6Wed10:412.58:423.63:420.33:171.37:066:41Waning Gibbous6Wed
7Thu11:452.59:373.44:380.34:161.47:076:40Third Quarter7Thu
8Fri12:462.55:470.35:251.37:086:38Third Quarter8Fri
9Sat1:392.66:550.26:421.27:096:37Third Quarter9Sat
10Sun12:013.12:252.87:530.27:541.07:106:35Waning Crescent10Sun
11Mon1:243.13:053.08:420.28:580.77:116:34Waning Crescent11Mon
12Tue2:373.23:413.29:250.29:570.47:126:32Waning Crescent12Tue
13Wed3:413.24:143.410:060.310:520.27:136:31Waning Crescent13Wed
14Thu4:403.34:473.710:450.411:470.07:146:30New Moon14Thu
15Fri5:373.35:203.911:260.67:156:28New Moon15Fri
16Sat6:343.25:564.012:41-0.112:080.87:166:27New Moon16Sat
17Sun7:323.16:364.01:34-0.212:541.07:176:25Waxing Crescent17Sun
18Mon8:323.17:193.92:29-0.21:441.17:186:24Waxing Crescent18Mon
19Tue9:343.08:073.73:25-0.12:381.27:196:23Waxing Crescent19Tue
20Wed10:372.99:033.44:23-0.13:401.37:206:21First Quarter20Wed
21Thu11:392.910:143.15:220.04:511.37:216:20First Quarter21Thu
22Fri12:383.06:220.06:071.27:226:19First Quarter22Fri
23Sat1:333.07:180.17:201.07:236:17First Quarter23Sat
24Sun1:032.72:213.18:080.18:250.77:246:16Waxing Gibbous24Sun
25Mon2:122.73:043.28:530.29:220.57:256:15Waxing Gibbous25Mon
26Tue3:102.73:403.39:320.310:130.37:266:14Waxing Gibbous26Tue
27Wed4:022.74:113.310:060.511:000.17:276:12Waxing Gibbous27Wed
28Thu4:502.74:363.410:360.711:440.17:286:11Full Moon28Thu
29Fri5:372.74:543.511:030.97:296:10Full Moon29Fri
30Sat6:232.75:113.612:250.111:32 AM1.17:306:09Full Moon30Sat
31Sun6:092.74:343.71:030.111:04 AM1.26:315:08Full Moon31Sun
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 6:38 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 80% 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 Gibbous (80% 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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