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

TIDE TIMES for Saturday, June 6, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 28m at 4:34 pm (-0.1 ft)
Next high tide : 11:39 pm (2.8 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:43 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Apr 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:563.89:582.72:110.83:470.06:507:29Waning Gibbous1Thu
2Fri8:403.811:142.62:581.04:560.06:487:30Third Quarter2Fri
3Sat9:323.63:561.36:110.06:477:31Third Quarter3Sat
4Sun12:312.710:39 AM3.35:111.47:240.06:457:32Third Quarter4Sun
5Mon1:402.812:123.16:401.58:27-0.16:447:33Third Quarter5Mon
6Tue2:393.01:443.18:021.39:21-0.16:427:34Waning Crescent6Tue
7Wed3:293.12:543.09:101.010:07-0.26:417:35Waning Crescent7Wed
8Thu4:123.33:513.010:080.810:47-0.16:397:36Waning Crescent8Thu
9Fri4:513.34:403.010:580.511:210.06:387:36Waning Crescent9Fri
10Sat5:243.35:252.911:450.411:510.26:367:37New Moon10Sat
11Sun5:513.36:092.812:280.26:357:38New Moon11Sun
12Mon6:123.36:542.712:160.41:080.26:337:39New Moon12Mon
13Tue6:273.47:402.712:370.61:450.16:327:40New Moon13Tue
14Wed6:423.58:302.61:000.82:210.16:317:41Waxing Crescent14Wed
15Thu7:043.69:252.51:291.02:550.16:297:42Waxing Crescent15Thu
16Fri7:353.610:272.52:061.23:320.16:287:43Waxing Crescent16Fri
17Sat8:133.511:332.42:491.44:180.26:267:44Waxing Crescent17Sat
18Sun8:593.43:431.55:200.26:257:45First Quarter18Sun
19Mon12:372.59:55 AM3.24:481.66:300.26:247:46First Quarter19Mon
20Tue1:352.611:03 AM3.06:061.57:330.16:227:47First Quarter20Tue
21Wed2:232.712:242.97:241.38:240.06:217:48First Quarter21Wed
22Thu3:042.81:462.98:301.19:080.06:207:49Waxing Gibbous22Thu
23Fri3:383.02:573.09:280.79:460.06:187:49Waxing Gibbous23Fri
24Sat4:083.13:583.110:210.410:220.16:177:50Waxing Gibbous24Sat
25Sun4:353.34:563.111:130.110:580.36:167:51Full Moon25Sun
26Mon5:013.65:533.112:04-0.16:157:52Full Moon26Mon
27Tue5:303.86:513.012:55-0.26:137:53Full Moon27Tue
28Wed6:034.07:522.912:160.81:48-0.36:127:54Waning Gibbous28Wed
29Thu6:414.18:562.91:001.02:43-0.36:117:55Waning Gibbous29Thu
30Fri7:234.010:032.81:491.23:41-0.36:107:56Waning Gibbous30Fri
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 8:06 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 66% 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 Third Quarter (66% 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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