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

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide (tomorrow) : 8:15 am (0.5 ft)
Next high tide (tomorrow) : in 6h 09m at 12:13 am (3.8 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:51 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Jun 1986

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:573.31:552.48:210.68:110.25:448:23Waning Crescent1Sun
2Mon2:373.43:012.49:220.38:500.55:448:23Waning Crescent2Mon
3Tue3:123.54:012.410:160.19:250.85:448:24Waning Crescent3Tue
4Wed3:423.64:562.511:06-0.19:591.15:438:25Waning Crescent4Wed
5Thu4:063.75:502.611:52-0.110:331.45:438:25New Moon5Thu
6Fri4:253.86:412.712:35-0.15:438:26New Moon6Fri
7Sat4:473.97:312.81:14-0.15:438:26New Moon7Sat
8Sun5:143.98:192.81:51-0.15:438:27New Moon8Sun
9Mon5:493.99:042.812:341.82:24-0.15:428:27Waxing Crescent9Mon
10Tue6:293.99:462.81:211.82:53-0.15:428:28Waxing Crescent10Tue
11Wed7:143.710:272.82:091.73:22-0.15:428:28Waxing Crescent11Wed
12Thu8:033.511:062.83:011.63:53-0.25:428:29Waxing Crescent12Thu
13Fri8:583.211:432.83:571.54:29-0.25:428:29First Quarter13Fri
14Sat10:002.95:001.35:09-0.15:428:30First Quarter14Sat
15Sun12:172.911:14 AM2.76:101.15:530.15:428:30First Quarter15Sun
16Mon12:493.112:402.57:230.86:380.35:428:30First Quarter16Mon
17Tue1:213.42:052.48:310.57:250.65:428:31Waxing Gibbous17Tue
18Wed1:553.73:222.59:350.28:130.95:438:31Waxing Gibbous18Wed
19Thu2:324.04:312.610:340.09:031.35:438:31Waxing Gibbous19Thu
20Fri3:134.35:352.811:31-0.29:581.55:438:32Full Moon20Fri
21Sat3:584.46:352.912:26-0.35:438:32Full Moon21Sat
22Sun4:474.57:323.01:18-0.45:438:32Full Moon22Sun
23Mon5:384.48:253.112:021.82:08-0.45:448:32Waning Gibbous23Mon
24Tue6:324.29:163.11:071.72:55-0.45:448:32Waning Gibbous24Tue
25Wed7:293.910:053.22:121.63:39-0.35:448:32Waning Gibbous25Wed
26Thu8:303.610:523.23:171.44:22-0.25:458:33Waning Gibbous26Thu
27Fri9:383.111:383.34:241.35:04-0.15:458:33Third Quarter27Fri
28Sat10:552.85:351.15:450.15:458:33Third Quarter28Sat
29Sun12:223.312:152.56:480.86:260.45:468:33Third Quarter29Sun
30Mon1:053.41:322.37:570.67:080.65:468:33Third Quarter30Mon
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 4:14 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 39% 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 (39% 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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