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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 5:01 pm (-0.1 ft)
Next high tide : in 2h 52m at 9:42 am (3.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Jan 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:142.97:033.21:31-0.11:501.17:224:57Waning Gibbous1Tue
2Wed8:413.07:563.01:590.02:411.07:224:58Waning Gibbous2Wed
3Thu9:123.19:002.72:360.13:410.97:224:59Third Quarter3Thu
4Fri9:503.210:212.53:180.24:550.87:225:00Third Quarter4Fri
5Sat10:363.411:552.44:080.56:160.67:225:01Third Quarter5Sat
6Sun11:273.65:040.87:300.47:225:01Third Quarter6Sun
7Mon1:192.412:233.86:061.08:340.17:225:02Waning Crescent7Mon
8Tue2:292.61:194.07:111.29:32-0.17:225:03Waning Crescent8Tue
9Wed3:292.82:154.18:171.310:24-0.27:225:04Waning Crescent9Wed
10Thu4:233.03:104.29:221.311:12-0.37:225:05New Moon10Thu
11Fri5:133.14:034.210:241.311:58-0.47:215:06New Moon11Fri
12Sat6:013.34:554.111:231.27:215:07New Moon12Sat
13Sun6:463.35:483.912:40-0.312:201.17:215:08Waxing Crescent13Sun
14Mon7:293.46:413.61:19-0.31:150.97:215:09Waxing Crescent14Mon
15Tue8:113.47:383.31:57-0.12:120.87:205:10Waxing Crescent15Tue
16Wed8:533.48:412.92:330.03:110.87:205:11Waxing Crescent16Wed
17Thu9:363.49:532.63:100.34:170.77:205:12First Quarter17Thu
18Fri10:213.411:102.43:500.55:270.67:195:14First Quarter18Fri
19Sat11:083.44:370.86:370.47:195:15First Quarter19Sat
20Sun12:262.411:57 AM3.45:321.07:410.37:185:16First Quarter20Sun
21Mon1:342.512:453.46:311.28:380.17:185:17Waxing Gibbous21Mon
22Tue2:342.61:313.57:301.39:270.07:175:18Waxing Gibbous22Tue
23Wed3:262.82:133.58:251.410:100.07:165:19Waxing Gibbous23Wed
24Thu4:132.92:523.69:161.410:48-0.17:165:20Waxing Gibbous24Thu
25Fri4:543.03:293.610:021.311:220.07:155:21Full Moon25Fri
26Sat5:323.04:063.610:461.311:500.07:145:22Full Moon26Sat
27Sun6:053.04:453.611:281.27:145:23Full Moon27Sun
28Mon6:323.15:263.512:140.012:081.07:135:25Full Moon28Mon
29Tue6:553.16:093.412:340.012:490.97:125:26Waning Gibbous29Tue
30Wed7:163.26:573.212:570.11:320.87:115:27Waning Gibbous30Wed
31Thu7:413.37:513.01:270.12:190.77:115:28Waning Gibbous31Thu
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 1:21 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 transitional phase. Tonight's moon is 38% 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 shifting between spring and neap.

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 First Quarter (38% illuminated). This places Prisoners Point, San Joaquin River, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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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