37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

83°
H -°
L 67°
WSW
6mph
Low tide
12:18 am

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

TIDE TIMES for Thursday, August 27, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : in 4h 35m at 12:18 am (1.1 ft)
Next high tide (tomorrow) : 6:07 am (3.5 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:31 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Nov 1913

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:522.56:534.21:34-0.512:521.66:315:07Waxing Crescent1Sat
2Sun8:472.47:423.92:25-0.31:431.76:325:06Waxing Crescent2Sun
3Mon9:442.38:353.53:18-0.12:431.86:335:05First Quarter3Mon
4Tue10:412.39:353.24:130.03:561.76:345:04First Quarter4Tue
5Wed11:352.210:392.85:080.15:101.56:355:03First Quarter5Wed
6Thu12:252.26:000.16:191.36:365:02First Quarter6Thu
7Fri1:092.36:480.27:200.96:375:01First Quarter7Fri
8Sat12:512.31:482.57:320.28:130.66:385:00Waxing Gibbous8Sat
9Sun1:542.12:242.78:120.49:010.36:394:59Waxing Gibbous9Sun
10Mon2:522.12:583.08:500.69:460.16:404:58Waxing Gibbous10Mon
11Tue3:452.23:313.39:270.810:30-0.16:414:57Waxing Gibbous11Tue
12Wed4:342.34:033.510:021.111:12-0.26:434:56Full Moon12Wed
13Thu5:202.44:343.710:351.411:54-0.26:444:56Full Moon13Thu
14Fri6:062.55:043.911:051.66:454:55Full Moon14Fri
15Sat6:532.55:363.912:37-0.211:28 AM1.76:464:54Full Moon15Sat
16Sun7:432.46:123.91:21-0.211:48 AM1.86:474:53Waning Gibbous16Sun
17Mon8:352.36:533.82:08-0.212:191.86:484:53Waning Gibbous17Mon
18Tue9:282.37:433.52:56-0.21:091.86:494:52Waning Gibbous18Tue
19Wed10:202.28:443.23:47-0.22:501.76:504:51Third Quarter19Wed
20Thu11:092.39:582.84:39-0.24:441.56:514:51Third Quarter20Thu
21Fri11:562.511:212.55:30-0.16:051.16:524:50Third Quarter21Fri
22Sat12:412.86:190.07:120.66:534:50Third Quarter22Sat
23Sun12:432.31:243.17:050.38:120.16:544:49Waning Crescent23Sun
24Mon1:582.22:073.57:500.59:07-0.26:554:49Waning Crescent24Mon
25Tue3:072.22:503.98:330.99:59-0.56:564:48Waning Crescent25Tue
26Wed4:082.33:334.39:181.210:50-0.66:574:48New Moon26Wed
27Thu5:042.44:164.510:041.411:39-0.66:584:47New Moon27Thu
28Fri5:562.55:004.510:521.66:594:47New Moon28Fri
29Sat6:462.65:444.412:28-0.611:41 AM1.77:004:47Waxing Crescent29Sat
30Sun7:362.56:284.21:15-0.512:321.87:014:47Waxing Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

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

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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 100% 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 (100% 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