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

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 8h 06m at 9:25 am (0.3 ft)
Next high tide : 3:29 pm (2.5 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Crescent (18% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Jun 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:574.29:012.812:281.62:20-0.25:448:23Waxing Crescent1Fri
2Sat6:434.19:512.81:201.73:02-0.25:448:24Waxing Crescent2Sat
3Sun7:334.010:412.82:171.63:46-0.25:448:24Waxing Crescent3Sun
4Mon8:293.711:312.93:191.64:34-0.25:438:25Waxing Crescent4Mon
5Tue9:343.44:291.45:25-0.25:438:25First Quarter5Tue
6Wed12:193.010:52 AM3.05:471.26:16-0.15:438:26First Quarter6Wed
7Thu1:053.112:202.87:040.97:060.15:438:27First Quarter7Thu
8Fri1:483.31:432.78:160.67:530.35:438:27Waxing Gibbous8Fri
9Sat2:283.52:572.69:210.38:380.55:428:28Waxing Gibbous9Sat
10Sun3:053.84:032.710:200.09:220.85:428:28Waxing Gibbous10Sun
11Mon3:403.95:042.811:15-0.210:071.15:428:29Waxing Gibbous11Mon
12Tue4:144.16:032.912:07-0.35:428:29Full Moon12Tue
13Wed4:474.16:592.912:56-0.35:428:29Full Moon13Wed
14Thu5:214.17:533.01:43-0.35:428:30Full Moon14Thu
15Fri5:584.08:443.112:341.72:26-0.25:428:30Waning Gibbous15Fri
16Sat6:383.89:333.11:261.83:07-0.25:428:31Waning Gibbous16Sat
17Sun7:223.610:203.02:191.73:45-0.15:428:31Waning Gibbous17Sun
18Mon8:103.311:053.03:151.64:22-0.15:438:31Waning Gibbous18Mon
19Tue9:053.011:483.04:141.54:570.05:438:31Third Quarter19Tue
20Wed10:112.75:201.35:330.15:438:32Third Quarter20Wed
21Thu12:293.011:34 AM2.46:301.16:110.35:438:32Third Quarter21Thu
22Fri1:063.11:012.27:390.96:500.55:438:32Third Quarter22Fri
23Sat1:393.32:182.28:420.67:300.75:448:32Waning Crescent23Sat
24Sun2:073.43:262.39:390.48:121.05:448:32Waning Crescent24Sun
25Mon2:333.64:272.410:300.28:551.35:448:33Waning Crescent25Mon
26Tue3:013.95:242.611:180.19:411.55:458:33Waning Crescent26Tue
27Wed3:344.16:182.712:030.05:458:33New Moon27Wed
28Thu4:134.27:082.912:46-0.15:458:33New Moon28Thu
29Fri4:574.37:552.91:28-0.25:468:33New Moon29Fri
30Sat5:454.38:403.012:201.82:08-0.25:468:33New Moon30Sat
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 12:27 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 spring phase. Tonight's moon is 18% 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 Waning Crescent (18% 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