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 3h 24m 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 - Apr 1986

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:013.53:271.55:590.15:516:29Third Quarter1Tue
2Wed12:202.710:22 AM3.34:551.67:070.05:496:30Third Quarter2Wed
3Thu1:222.812:043.16:281.58:05-0.15:486:30Waning Crescent3Thu
4Fri2:153.01:273.17:441.28:53-0.25:466:31Waning Crescent4Fri
5Sat2:593.22:303.18:470.99:34-0.25:456:32Waning Crescent5Sat
6Sun3:393.33:233.19:410.610:10-0.15:436:33Waning Crescent6Sun
7Mon4:133.34:113.010:300.410:410.15:426:34New Moon7Mon
8Tue4:423.44:572.911:150.211:080.35:406:35New Moon8Tue
9Wed5:063.45:432.811:580.111:310.65:396:36New Moon9Wed
10Thu5:243.46:312.712:380.15:376:37New Moon10Thu
11Fri5:393.57:212.61:160.15:366:38Waxing Crescent11Fri
12Sat5:583.68:172.512:221.01:540.15:346:39Waxing Crescent12Sat
13Sun6:263.69:192.512:561.22:340.25:336:40Waxing Crescent13Sun
14Mon7:023.610:252.51:381.43:210.25:316:41Waxing Crescent14Mon
15Tue7:463.411:302.52:301.64:220.25:306:42First Quarter15Tue
16Wed8:393.23:341.75:290.25:296:42First Quarter16Wed
17Thu12:292.69:45 AM3.04:521.66:300.15:276:43First Quarter17Thu
18Fri1:182.711:06 AM2.96:111.47:200.05:266:44First Quarter18Fri
19Sat1:592.812:302.87:191.28:020.05:246:45Waxing Gibbous19Sat
20Sun2:342.91:422.98:160.88:370.05:236:46Waxing Gibbous20Sun
21Mon3:023.02:422.99:080.59:100.15:226:47Waxing Gibbous21Mon
22Tue3:263.23:393.09:570.29:410.35:206:48Waxing Gibbous22Tue
23Wed3:483.44:342.910:460.010:150.55:196:49Full Moon23Wed
24Thu4:133.75:312.911:35-0.210:520.85:186:50Full Moon24Thu
25Fri4:434.06:312.912:26-0.35:166:51Full Moon25Fri
26Sat5:184.17:342.81:20-0.35:156:52Waning Gibbous26Sat
27Sun7:004.19:412.712:211.23:17-0.36:147:53Waning Gibbous27Sun
28Mon7:464.010:492.72:141.44:20-0.26:137:54Waning Gibbous28Mon
29Tue8:413.711:562.83:181.55:26-0.26:127:55Third Quarter29Tue
30Wed9:493.34:371.66:31-0.16:107:55Third Quarter30Wed
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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