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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Prisoners Point, San Joaquin River, CA.
Next low tide : 6:06 pm (1.1 ft)
Next high tide : in 1h 40m at 1:16 pm (2.4 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 6:01 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Jan 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:562.83:003.89:211.711:30-0.27:224:57New Moon1Sun
2Mon5:422.93:333.910:071.87:224:58New Moon2Mon
3Tue6:242.94:123.912:07-0.210:53 AM1.77:224:59New Moon3Tue
4Wed7:032.94:543.912:40-0.211:38 AM1.77:225:00New Moon4Wed
5Thu7:382.95:393.81:09-0.212:231.57:225:00Waxing Crescent5Thu
6Fri8:112.96:263.61:36-0.21:091.37:225:01Waxing Crescent6Fri
7Sat8:412.97:183.32:03-0.21:581.27:225:02Waxing Crescent7Sat
8Sun9:102.98:153.02:33-0.22:541.07:225:03Waxing Crescent8Sun
9Mon9:433.19:252.63:090.03:590.97:225:04First Quarter9Mon
10Tue10:203.210:562.43:510.25:180.77:225:05First Quarter10Tue
11Wed11:023.54:380.56:430.57:215:06First Quarter11Wed
12Thu12:342.311:50 AM3.75:310.97:590.37:215:07Waxing Gibbous12Thu
13Fri1:582.412:413.96:311.29:040.07:215:08Waxing Gibbous13Fri
14Sat3:092.61:354.17:351.510:02-0.17:215:09Waxing Gibbous14Sat
15Sun4:102.82:294.28:421.610:55-0.37:205:10Full Moon15Sun
16Mon5:043.03:244.29:471.611:43-0.37:205:11Full Moon16Mon
17Tue5:543.14:174.210:491.67:195:12Full Moon17Tue
18Wed6:403.25:094.012:27-0.311:47 AM1.57:195:13Full Moon18Wed
19Thu7:233.26:013.81:07-0.312:421.37:185:14Waning Gibbous19Thu
20Fri8:043.26:533.51:43-0.21:361.17:185:16Waning Gibbous20Fri
21Sat8:433.27:483.12:16-0.12:311.07:175:17Waning Gibbous21Sat
22Sun9:203.18:502.72:460.03:300.87:175:18Waning Gibbous22Sun
23Mon9:573.110:022.43:160.34:350.77:165:19Third Quarter23Mon
24Tue10:333.211:232.23:490.55:450.67:165:20Third Quarter24Tue
25Wed11:113.24:280.86:550.47:155:21Third Quarter25Wed
26Thu12:432.211:50 AM3.35:171.27:580.27:145:22Third Quarter26Thu
27Fri1:542.412:323.46:151.48:540.17:145:23Waning Crescent27Fri
28Sat2:562.61:153.57:171.69:430.07:135:24Waning Crescent28Sat
29Sun3:492.81:593.68:171.710:26-0.17:125:26Waning Crescent29Sun
30Mon4:352.92:423.79:111.711:05-0.17:115:27Waning Crescent30Mon
31Tue5:163.03:253.810:011.711:39-0.27:105:28New Moon31Tue
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 3:41 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 63% 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 First Quarter (63% 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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