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

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide (tomorrow) : 8:01 am (0.4 ft)
Next high tide (tomorrow) : in 5h 30m at 1:09 am (3.5 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Oct 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:242.96:443.51:370.212:560.97:026:48Waxing Crescent1Wed
2Thu8:162.87:053.62:210.21:251.17:036:47Waxing Crescent2Thu
3Fri9:142.77:323.63:060.32:001.37:046:45Waxing Crescent3Fri
4Sat10:152.68:083.53:540.32:431.57:056:44Waxing Crescent4Sat
5Sun11:202.68:533.44:480.33:361.67:066:42First Quarter5Sun
6Mon12:242.65:490.34:401.67:076:41First Quarter6Mon
7Tue1:212.66:510.35:561.67:076:39First Quarter7Tue
8Wed2:122.77:450.27:111.47:086:38First Quarter8Wed
9Thu12:262.92:542.88:320.18:161.17:096:36Waxing Gibbous9Thu
10Fri1:462.93:292.99:110.19:120.97:106:35Waxing Gibbous10Fri
11Sat2:502.93:583.09:450.110:020.67:116:33Waxing Gibbous11Sat
12Sun3:453.04:223.210:150.210:490.47:126:32Waxing Gibbous12Sun
13Mon4:373.04:433.410:440.411:350.27:136:30Full Moon13Mon
14Tue5:293.05:063.711:150.67:146:29Full Moon14Tue
15Wed6:232.95:353.912:220.011:50 AM0.87:156:28Full Moon15Wed
16Thu7:192.96:114.11:100.012:291.07:166:26Waning Gibbous16Thu
17Fri8:202.86:524.22:02-0.11:151.27:176:25Waning Gibbous17Fri
18Sat9:262.77:394.12:580.02:071.47:186:23Waning Gibbous18Sat
19Sun10:342.78:343.84:010.03:081.57:196:22Waning Gibbous19Sun
20Mon11:422.79:403.55:090.04:211.57:206:21Third Quarter20Mon
21Tue12:442.86:160.05:451.47:216:20Third Quarter21Tue
22Wed1:402.97:180.07:071.17:226:18Third Quarter22Wed
23Thu12:393.02:293.18:120.08:190.87:236:17Waning Crescent23Thu
24Fri1:582.93:133.28:590.09:210.57:246:16Waning Crescent24Fri
25Sat3:032.93:513.49:390.110:170.27:256:14Waning Crescent25Sat
26Sun4:002.84:243.410:150.311:080.07:266:13Waning Crescent26Sun
27Mon4:522.84:523.510:470.611:56-0.17:276:12New Moon27Mon
28Tue5:432.85:143.611:160.97:286:11New Moon28Tue
29Wed6:332.85:323.612:41-0.111:44 AM1.17:296:10New Moon29Wed
30Thu7:242.85:513.71:24-0.112:151.37:306:09New Moon30Thu
31Fri8:152.76:173.72:050.012:521.57:316:07Waxing Crescent31Fri
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 4:35 am — 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 neap phase. Tonight's moon is 59% 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 minimum.

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 (59% illuminated). This places Prisoners Point, San Joaquin River, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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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