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

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 1h 38m at 8:26 pm (1.8 ft)
Next high tide (tomorrow) : 2:43 am (3.9 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waxing Gibbous (80% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:142.510:043.64:180.43:511.36:357:35Third Quarter1Mon
2Tue11:142.310:513.65:160.54:331.56:367:34Third Quarter2Tue
3Wed12:182.26:160.65:281.86:377:32Third Quarter3Wed
4Thu1:242.27:170.66:341.96:387:31Third Quarter4Thu
5Fri12:403.52:302.28:150.67:391.96:397:29Waning Crescent5Fri
6Sat1:393.53:262.39:080.58:371.76:397:28Waning Crescent6Sat
7Sun2:373.54:102.49:550.49:311.66:407:26Waning Crescent7Sun
8Mon3:303.54:472.510:380.310:211.46:417:24Waning Crescent8Mon
9Tue4:183.55:222.611:170.211:091.16:427:23Waning Crescent9Tue
10Wed5:033.45:552.811:540.211:550.96:437:21New Moon10Wed
11Thu5:463.36:273.012:290.36:447:20New Moon11Thu
12Fri6:303.26:573.112:400.71:010.56:447:18New Moon12Fri
13Sat7:153.07:263.31:250.51:310.76:457:17Waxing Crescent13Sat
14Sun8:032.87:563.52:100.41:561.06:467:15Waxing Crescent14Sun
15Mon8:552.78:293.72:570.32:151.26:477:14Waxing Crescent15Mon
16Tue9:542.59:093.83:500.32:301.56:487:12Waxing Crescent16Tue
17Wed10:592.39:593.94:500.32:521.76:497:10First Quarter17Wed
18Thu12:072.25:560.33:291.86:507:09First Quarter18Thu
19Fri1:172.27:020.24:431.96:507:07First Quarter19Fri
20Sat12:133.82:222.38:040.17:271.86:517:06First Quarter20Sat
21Sun1:283.83:172.49:000.18:411.56:527:04Waxing Gibbous21Sun
22Mon2:393.74:032.69:500.09:451.16:537:03Waxing Gibbous22Mon
23Tue3:433.64:452.910:360.010:440.76:547:01Waxing Gibbous23Tue
24Wed4:423.55:233.211:190.111:390.46:556:59Full Moon24Wed
25Thu5:373.36:013.411:590.36:566:58Full Moon25Thu
26Fri6:283.16:383.612:310.112:390.56:576:56Full Moon26Fri
27Sat7:202.97:143.71:200.01:170.86:576:55Waning Gibbous27Sat
28Sun8:112.77:513.72:090.01:541.16:586:53Waning Gibbous28Sun
29Mon9:032.68:303.72:570.02:321.46:596:52Waning Gibbous29Mon
30Tue9:582.49:123.63:470.13:101.67:006:50Waning Gibbous30Tue
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 11:34 pm — 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 80% 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 Waxing Gibbous (80% 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