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

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 2h 00m at 3:38 am (1.4 ft)
Next high tide : 9:18 am (3.5 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:103.39:342.52:450.64:000.77:095:29Third Quarter1Fri
2Sat9:553.510:432.33:150.85:060.57:085:30Third Quarter2Sat
3Sun10:463.711:562.23:531.16:120.47:075:31Third Quarter3Sun
4Mon11:443.85:001.37:140.27:065:32Third Quarter4Mon
5Tue1:092.212:464.06:221.48:120.17:055:33Waning Crescent5Tue
6Wed2:162.31:484.17:331.49:06-0.17:045:34Waning Crescent6Wed
7Thu3:142.52:484.28:381.49:57-0.17:035:35Waning Crescent7Thu
8Fri4:052.73:434.29:381.210:45-0.27:025:36New Moon8Fri
9Sat4:512.94:354.110:361.011:30-0.27:015:38New Moon9Sat
10Sun5:343.15:253.911:310.97:005:39New Moon10Sun
11Mon6:163.36:143.612:13-0.112:240.76:595:40New Moon11Mon
12Tue6:583.37:033.312:540.11:160.66:585:41Waxing Crescent12Tue
13Wed7:403.47:533.01:340.32:070.66:575:42Waxing Crescent13Wed
14Thu8:223.48:452.62:140.53:000.56:565:43Waxing Crescent14Thu
15Fri9:063.39:392.42:540.73:550.66:545:44First Quarter15Fri
16Sat9:513.310:372.23:371.04:540.66:535:45First Quarter16Sat
17Sun10:393.311:382.04:251.25:530.66:525:46First Quarter17Sun
18Mon11:303.35:201.36:510.56:515:47First Quarter18Mon
19Tue12:412.012:253.36:201.47:450.46:495:48First Quarter19Tue
20Wed1:432.11:203.37:171.48:350.36:485:50Waxing Gibbous20Wed
21Thu2:372.22:133.48:121.39:210.26:475:51Waxing Gibbous21Thu
22Fri3:242.33:033.59:031.210:030.26:465:52Waxing Gibbous22Fri
23Sat4:062.53:493.59:521.110:440.16:445:53Waxing Gibbous23Sat
24Sun4:442.74:333.510:400.911:220.16:435:54Full Moon24Sun
25Mon5:212.95:163.411:260.811:590.26:425:55Full Moon25Mon
26Tue5:563.16:013.312:120.66:405:56Full Moon26Tue
27Wed6:323.26:473.112:340.312:590.56:395:57Waning Gibbous27Wed
28Thu7:083.47:372.91:080.51:470.46:375:58Waning Gibbous28Thu
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 6:28 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 transitional phase. Tonight's moon is 28% 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 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 Waxing Crescent (28% illuminated). This places Blackslough Landing, 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.

LEARN MORE ABOUT OUR TIDE DATA