Tides Today & Tomorrow in Blackslough Landing, San Joaquin River, CA

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 3:11 pm (0.5 ft)
Next high tide : in 4h 38m at 8:28 am (3.0 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:09 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:042.93:163.29:190.59:460.15:506:28Waxing Gibbous1Tue
2Wed3:483.24:133.210:140.210:310.35:496:29Full Moon2Wed
3Thu4:313.65:073.211:07-0.111:150.45:476:30Full Moon3Thu
4Fri5:143.86:013.112:00-0.35:466:31Full Moon4Fri
5Sat5:584.06:553.012:000.612:52-0.45:446:32Waning Gibbous5Sat
6Sun6:434.07:502.812:460.81:44-0.45:436:32Waning Gibbous6Sun
7Mon7:313.98:462.71:331.02:38-0.35:416:33Waning Gibbous7Mon
8Tue8:233.79:432.52:241.13:33-0.25:406:34Waning Gibbous8Tue
9Wed9:183.510:412.43:221.24:300.05:386:35Third Quarter9Wed
10Thu10:173.211:392.34:261.35:280.15:376:36Third Quarter10Thu
11Fri11:192.95:341.26:240.25:366:37Third Quarter11Fri
12Sat12:352.312:222.76:381.17:160.25:346:38Third Quarter12Sat
13Sun1:282.41:242.67:370.98:040.35:336:39Waning Crescent13Sun
14Mon2:142.52:222.58:300.68:490.35:316:40Waning Crescent14Mon
15Tue2:552.73:142.59:190.49:310.45:306:41Waning Crescent15Tue
16Wed3:342.94:022.610:060.210:110.65:286:42Waning Crescent16Wed
17Thu4:103.14:482.610:500.110:510.75:276:43New Moon17Thu
18Fri4:453.25:312.611:320.011:290.95:266:43New Moon18Fri
19Sat5:183.46:152.612:14-0.15:246:44New Moon19Sat
20Sun5:513.46:592.612:051.012:56-0.15:236:45New Moon20Sun
21Mon6:223.47:452.512:401.21:38-0.15:226:46Waxing Crescent21Mon
22Tue6:543.48:342.41:111.32:22-0.15:206:47Waxing Crescent22Tue
23Wed7:303.39:242.31:401.43:08-0.15:196:48Waxing Crescent23Wed
24Thu8:133.210:162.32:131.43:580.05:186:49Waxing Crescent24Thu
25Fri9:073.011:092.33:191.44:520.05:166:50First Quarter25Fri
26Sat10:142.94:511.35:470.05:156:51First Quarter26Sat
27Sun12:022.412:302.77:071.17:400.16:147:52First Quarter27Sun
28Mon1:522.61:472.68:120.88:300.26:137:53Waxing Gibbous28Mon
29Tue2:412.92:582.69:120.49:190.36:117:54Waxing Gibbous29Tue
30Wed3:283.34:032.710:080.110:060.56:107:55Waxing Gibbous30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

Common Questions About Blackslough Landing, San Joaquin River, CA Tides

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What time does the tide turn (slack tide) in Blackslough Landing, San Joaquin River, CA today?

Slack tide in Blackslough Landing, San Joaquin River, CA is approximately 11:49 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 Blackslough Landing, San Joaquin River, CA?

Blackslough Landing, San Joaquin River, CA is currently in a spring phase. Tonight's moon is 83% 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 Blackslough Landing, 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 Blackslough Landing, San Joaquin River, CA?

Tide predictions for Blackslough Landing, 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 Blackslough Landing, San Joaquin River, CA?

Tide data for Blackslough Landing, San Joaquin River, CA is sourced from NOAA Station #9415021. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415021.

What is the moon phase in Blackslough Landing, San Joaquin River, CA tonight?

Tonight the moon over Blackslough Landing, San Joaquin River, CA is Waning Gibbous (83% illuminated). This places Blackslough Landing, 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