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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 6:43 pm (1.1 ft)
Next high tide : in 50m at 2:11 pm (2.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - May 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:333.04:381.45:370.16:097:57First Quarter1Sat
2Sun12:462.610:41 AM2.75:501.36:270.16:077:58First Quarter2Sun
3Mon1:302.712:032.57:031.17:130.16:067:59First Quarter3Mon
4Tue2:082.81:272.58:090.87:560.26:058:00Waxing Gibbous4Tue
5Wed2:403.02:402.59:070.58:350.46:048:01Waxing Gibbous5Wed
6Thu3:063.23:432.610:010.29:140.66:038:02Waxing Gibbous6Thu
7Fri3:313.54:422.710:520.09:540.86:028:03Waxing Gibbous7Fri
8Sat3:593.85:402.711:42-0.210:371.06:018:04Full Moon8Sat
9Sun4:334.06:362.812:33-0.36:008:04Full Moon9Sun
10Mon5:124.27:332.81:23-0.45:598:05Full Moon10Mon
11Tue5:564.38:312.912:161.32:14-0.45:588:06Waning Gibbous11Tue
12Wed6:444.29:282.91:131.43:06-0.45:578:07Waning Gibbous12Wed
13Thu7:383.910:262.92:141.44:00-0.35:568:08Waning Gibbous13Thu
14Fri8:383.611:223.03:221.34:54-0.35:558:09Third Quarter14Fri
15Sat9:503.24:361.25:48-0.25:558:10Third Quarter15Sat
16Sun12:163.111:18 AM2.85:551.06:40-0.15:548:11Third Quarter16Sun
17Mon1:083.212:452.67:120.87:300.15:538:12Third Quarter17Mon
18Tue1:553.32:012.58:220.58:160.25:528:12Waning Crescent18Tue
19Wed2:383.53:072.59:240.28:580.55:518:13Waning Crescent19Wed
20Thu3:163.64:062.510:190.09:380.75:518:14Waning Crescent20Thu
21Fri3:493.75:012.611:09-0.210:151.05:508:15Waning Crescent21Fri
22Sat4:173.75:532.711:56-0.210:521.25:498:16New Moon22Sat
23Sun4:403.86:432.812:40-0.25:498:17New Moon23Sun
24Mon5:033.87:312.81:20-0.25:488:17New Moon24Mon
25Tue5:313.88:182.812:091.61:56-0.15:488:18New Moon25Tue
26Wed6:043.89:022.812:521.62:29-0.15:478:19Waxing Crescent26Wed
27Thu6:433.79:452.81:361.62:59-0.15:478:20Waxing Crescent27Thu
28Fri7:273.510:272.82:241.53:26-0.15:468:20Waxing Crescent28Fri
29Sat8:153.311:082.73:151.43:55-0.15:468:21Waxing Crescent29Sat
30Sun9:093.011:462.84:121.34:29-0.15:458:22First Quarter30Sun
31Mon10:122.75:171.15:100.05:458:22First Quarter31Mon
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 4:27 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 transitional phase. Tonight's moon is 28% 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 Waning Crescent (28% 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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