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

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 5:36 am (0.9 ft)
Next high tide (tomorrow) : in 10m at 10:55 pm (3.3 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:49 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Aug 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:524.06:583.212:51-0.16:098:15New Moon1Tue
2Wed5:373.97:373.212:131.51:250.06:108:14New Moon2Wed
3Thu6:213.78:113.21:021.41:540.06:118:13Waxing Crescent3Thu
4Fri7:053.48:403.21:491.22:170.16:118:12Waxing Crescent4Fri
5Sat7:503.29:043.22:341.12:360.36:128:11Waxing Crescent5Sat
6Sun8:402.99:243.33:211.02:570.46:138:10Waxing Crescent6Sun
7Mon9:392.69:453.34:130.93:240.66:148:09First Quarter7Mon
8Tue10:532.410:123.45:130.84:000.96:158:08First Quarter8Tue
9Wed12:182.36:240.84:441.26:168:07First Quarter9Wed
10Thu1:402.37:370.65:381.56:178:05First Quarter10Thu
11Fri2:502.58:430.56:431.76:188:04Waxing Gibbous11Fri
12Sat12:363.73:492.79:390.37:521.86:188:03Waxing Gibbous12Sat
13Sun1:383.84:382.810:270.18:591.86:198:02Waxing Gibbous13Sun
14Mon2:403.95:202.911:100.09:581.66:208:00Waxing Gibbous14Mon
15Tue3:374.05:573.011:48-0.110:531.56:217:59Full Moon15Tue
16Wed4:314.06:293.112:22-0.16:227:58Full Moon16Wed
17Thu5:224.06:593.212:54-0.16:237:57Full Moon17Thu
18Fri6:143.97:273.312:371.01:240.06:247:55Waning Gibbous18Fri
19Sat7:073.77:563.51:280.81:540.16:247:54Waning Gibbous19Sat
20Sun8:033.48:283.72:220.62:260.36:257:53Waning Gibbous20Sun
21Mon9:073.19:053.83:200.53:030.56:267:51Waning Gibbous21Mon
22Tue10:212.89:483.94:270.53:450.96:277:50Third Quarter22Tue
23Wed11:462.610:403.95:450.54:371.26:287:48Third Quarter23Wed
24Thu1:092.67:060.45:421.46:297:47Third Quarter24Thu
25Fri2:232.78:200.37:011.66:307:46Waning Crescent25Fri
26Sat12:583.83:252.99:230.18:181.66:317:44Waning Crescent26Sat
27Sun2:113.74:173.110:160.09:261.56:317:43Waning Crescent27Sun
28Mon3:133.75:033.211:020.010:241.36:327:41Waning Crescent28Mon
29Tue4:063.75:433.211:410.011:161.26:337:40New Moon29Tue
30Wed4:523.66:193.212:150.06:347:38New Moon30Wed
31Thu5:353.56:503.212:041.012:430.26:357:37New Moon31Thu
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 2:15 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 transitional phase. Tonight's moon is 61% 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 (61% 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.

LEARN MORE ABOUT OUR TIDE DATA