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

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 1:37 pm (0.1 ft)
Next high tide : in 2h 55m at 6:20 am (3.9 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:07 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Nov 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:192.85:133.911:100.77:326:05New Moon1Tue
2Wed6:102.85:544.012:07-0.311:55 AM0.97:336:04New Moon2Wed
3Thu6:592.86:354.012:54-0.412:401.17:346:03New Moon3Thu
4Fri7:482.77:163.91:41-0.31:261.27:356:02Waxing Crescent4Fri
5Sat8:372.77:573.72:27-0.32:121.47:366:01Waxing Crescent5Sat
6Sun8:272.67:413.42:13-0.22:011.46:375:00Waxing Crescent6Sun
7Mon9:182.58:283.13:00-0.12:551.46:384:59Waxing Crescent7Mon
8Tue10:092.49:222.83:500.03:571.46:394:58First Quarter8Tue
9Wed10:592.310:212.54:400.15:021.36:404:58First Quarter9Wed
10Thu11:482.411:252.35:310.26:051.16:424:57First Quarter10Thu
11Fri12:342.56:200.37:020.86:434:56First Quarter11Fri
12Sat12:302.21:192.77:070.47:550.66:444:55Waxing Gibbous12Sat
13Sun1:332.22:012.97:510.58:440.36:454:54Waxing Gibbous13Sun
14Mon2:312.22:403.28:330.69:300.16:464:54Waxing Gibbous14Mon
15Tue3:242.33:183.49:130.810:15-0.16:474:53Waxing Gibbous15Tue
16Wed4:142.53:553.79:531.011:00-0.26:484:52Full Moon16Wed
17Thu5:022.64:313.910:321.211:44-0.36:494:52Full Moon17Thu
18Fri5:502.75:094.011:121.36:504:51Full Moon18Fri
19Sat6:382.75:484.012:29-0.411:54 AM1.46:514:50Full Moon19Sat
20Sun7:282.76:323.91:15-0.412:411.46:524:50Waning Gibbous20Sun
21Mon8:202.77:213.72:02-0.41:361.46:534:49Waning Gibbous21Mon
22Tue9:132.68:193.42:51-0.42:421.46:544:49Waning Gibbous22Tue
23Wed10:062.79:253.03:43-0.33:571.36:554:48Third Quarter23Wed
24Thu10:582.810:382.74:36-0.15:111.06:564:48Third Quarter24Thu
25Fri11:503.011:512.55:300.06:210.76:574:47Third Quarter25Fri
26Sat12:413.26:230.27:240.46:584:47Waning Crescent26Sat
27Sun1:032.31:313.47:140.48:210.16:594:47Waning Crescent27Sun
28Mon2:122.32:183.78:040.69:14-0.17:004:46Waning Crescent28Mon
29Tue3:132.33:033.98:520.910:04-0.37:014:46Waning Crescent29Tue
30Wed4:082.53:474.09:391.010:52-0.37:024:46New Moon30Wed
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 9:58 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 99% 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 Full Moon (99% 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