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

TIDE TIMES for Thursday, June 4, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.
Next low tide : in 3h 49m at 2:09 am (1.7 ft)
Next high tide : 7:15 am (3.6 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Aug 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:182.36:360.75:021.16:098:15First Quarter1Fri
2Sat1:382.37:460.65:511.46:108:14First Quarter2Sat
3Sun12:103.52:502.58:510.46:511.66:118:13Waxing Gibbous3Sun
4Mon12:583.63:512.79:460.37:561.86:128:12Waxing Gibbous4Mon
5Tue1:503.74:432.810:350.19:001.96:138:11Waxing Gibbous5Tue
6Wed2:433.85:282.911:180.09:581.86:138:10Waxing Gibbous6Wed
7Thu3:333.96:083.011:570.010:511.76:148:09Full Moon7Thu
8Fri4:224.06:433.012:31-0.16:158:07Full Moon8Fri
9Sat5:094.07:133.11:01-0.16:168:06Full Moon9Sat
10Sun5:563.97:403.112:271.31:29-0.16:178:05Full Moon10Sun
11Mon6:453.78:053.31:141.11:550.06:188:04Waning Gibbous11Mon
12Tue7:363.58:313.42:020.92:230.16:198:03Waning Gibbous12Tue
13Wed8:323.29:013.62:540.72:550.36:208:01Waning Gibbous13Wed
14Thu9:382.99:393.83:540.73:320.66:208:00Third Quarter14Thu
15Fri11:002.610:243.95:050.64:160.96:217:59Third Quarter15Fri
16Sat12:312.56:300.65:101.26:227:58Third Quarter16Sat
17Sun1:562.67:520.46:181.56:237:56Third Quarter17Sun
18Mon12:223.93:072.79:030.37:371.66:247:55Waning Crescent18Mon
19Tue1:343.94:062.910:030.18:531.66:257:54Waning Crescent19Tue
20Wed2:434.04:573.110:550.010:001.56:267:52Waning Crescent20Wed
21Thu3:433.95:423.211:39-0.110:591.46:277:51New Moon21Thu
22Fri4:363.96:223.212:19-0.16:277:50New Moon22Fri
23Sat5:243.86:593.312:530.06:287:48New Moon23Sat
24Sun6:103.67:313.312:421.11:220.16:297:47New Moon24Sun
25Mon6:553.47:573.31:290.91:450.36:307:45Waxing Crescent25Mon
26Tue7:413.18:193.32:140.82:060.46:317:44Waxing Crescent26Tue
27Wed8:322.98:363.33:000.72:270.66:327:42Waxing Crescent27Wed
28Thu9:312.68:563.43:480.72:550.96:337:41Waxing Crescent28Thu
29Fri10:422.59:263.54:450.73:321.16:337:39First Quarter29Fri
30Sat12:012.45:520.74:181.46:347:38First Quarter30Sat
31Sun1:192.57:050.65:161.66:357:37First Quarter31Sun
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 4:42 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 90% 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 Gibbous (90% 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