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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 5m at 1:12 am (1.6 ft)
Next high tide : 6:34 am (4.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Apr 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:433.24:282.910:490.511:080.26:517:29Waxing Gibbous1Wed
2Thu5:153.25:112.911:330.411:350.46:497:29Full Moon2Thu
3Fri5:423.25:512.912:140.36:487:30Full Moon3Fri
4Sat6:003.36:322.912:520.36:467:31Full Moon4Sat
5Sun6:143.37:142.812:200.61:280.26:457:32Full Moon5Sun
6Mon6:313.57:582.712:460.72:010.26:437:33Waning Gibbous6Mon
7Tue6:573.68:462.71:180.82:350.26:427:34Waning Gibbous7Tue
8Wed7:333.69:422.61:570.93:120.16:407:35Waning Gibbous8Wed
9Thu8:153.610:462.52:421.04:000.26:397:36Waning Gibbous9Thu
10Fri9:043.511:542.53:341.15:020.26:377:37Third Quarter10Fri
11Sat10:033.34:371.26:160.26:367:38Third Quarter11Sat
12Sun12:582.611:14 AM3.15:531.27:240.16:347:39Third Quarter12Sun
13Mon1:542.812:413.07:151.18:230.16:337:40Third Quarter13Mon
14Tue2:433.02:053.18:290.89:140.06:317:41Waning Crescent14Tue
15Wed3:273.23:153.19:330.510:000.16:307:42Waning Crescent15Wed
16Thu4:063.44:173.210:310.310:430.26:297:42Waning Crescent16Thu
17Fri4:433.65:143.211:260.111:250.36:277:43New Moon17Fri
18Sat5:193.76:103.212:19-0.16:267:44New Moon18Sat
19Sun5:543.87:063.112:060.51:11-0.26:247:45New Moon19Sun
20Mon6:303.98:033.112:480.72:02-0.26:237:46Waxing Crescent20Mon
21Tue7:073.89:023.01:330.92:53-0.26:227:47Waxing Crescent21Tue
22Wed7:473.710:032.92:201.03:45-0.16:207:48Waxing Crescent22Wed
23Thu8:323.411:052.93:131.14:400.06:197:49Waxing Crescent23Thu
24Fri9:243.24:141.25:380.06:187:50First Quarter24Fri
25Sat12:062.910:31 AM2.95:231.26:360.16:177:51First Quarter25Sat
26Sun1:042.911:54 AM2.76:361.17:310.16:157:52First Quarter26Sun
27Mon1:563.01:142.67:450.98:200.26:147:53First Quarter27Mon
28Tue2:433.12:212.58:460.79:030.26:137:54Waxing Gibbous28Tue
29Wed3:243.23:182.69:400.59:400.36:127:55Waxing Gibbous29Wed
30Thu3:593.34:092.610:290.310:120.56:107:55Waxing Gibbous30Thu
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 3:53 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 spring phase. Tonight's moon is 10% 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 Waxing Crescent (10% 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.

LEARN MORE ABOUT OUR TIDE DATA