37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

58°
H 80°
L 59°
WSW
3mph
Low tide
5:36 am

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

TIDE TIMES for Thursday, September 3, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 2h 02m at 5:36 am (0.4 ft)
Next high tide : 11:37 am (2.3 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (56% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 1903

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:132.97:532.92:020.22:251.07:105:27Waxing Crescent1Sun
2Mon8:503.08:452.62:340.43:190.97:105:29Waxing Crescent2Mon
3Tue9:303.29:472.43:030.64:200.87:095:30First Quarter3Tue
4Wed10:143.310:582.23:320.85:250.67:085:31First Quarter4Wed
5Thu11:043.54:111.16:290.47:075:32First Quarter5Thu
6Fri12:122.212:013.75:221.37:290.37:065:33First Quarter6Fri
7Sat1:232.21:023.96:401.48:250.17:055:34Waxing Gibbous7Sat
8Sun2:282.42:024.17:491.49:19-0.17:045:35Waxing Gibbous8Sun
9Mon3:252.63:014.28:521.310:09-0.27:035:36Waxing Gibbous9Mon
10Tue4:162.83:564.39:521.210:57-0.27:025:37Full Moon10Tue
11Wed5:023.04:494.210:491.011:43-0.27:015:39Full Moon11Wed
12Thu5:473.25:404.011:450.87:005:40Full Moon12Thu
13Fri6:323.36:313.712:28-0.112:400.76:585:41Waning Gibbous13Fri
14Sat7:163.47:223.31:110.01:340.66:575:42Waning Gibbous14Sat
15Sun8:013.48:153.01:530.22:280.56:565:43Waning Gibbous15Sun
16Mon8:463.49:102.62:360.53:240.56:555:44Waning Gibbous16Mon
17Tue9:323.410:072.43:200.74:230.56:545:45Third Quarter17Tue
18Wed10:213.311:072.24:070.95:230.56:535:46Third Quarter18Wed
19Thu11:113.35:011.16:220.56:515:47Third Quarter19Thu
20Fri12:102.112:043.35:581.37:190.56:505:48Third Quarter20Fri
21Sat1:132.112:593.36:551.38:110.46:495:49Waning Crescent21Sat
22Sun2:122.11:523.47:501.38:590.36:475:50Waning Crescent22Sun
23Mon3:032.32:433.48:411.39:440.26:465:52Waning Crescent23Mon
24Tue3:472.43:293.59:311.210:260.26:455:53Waning Crescent24Tue
25Wed4:272.64:133.510:181.111:060.16:435:54New Moon25Wed
26Thu5:052.84:553.411:040.911:440.26:425:55New Moon26Thu
27Fri5:412.95:373.311:490.86:415:56New Moon27Fri
28Sat6:173.06:193.212:200.212:330.76:395:57New Moon28Sat
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 neap phase. Tonight's moon is 56% 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 minimum.

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 Third Quarter (56% illuminated). This places Blackslough Landing, San Joaquin River, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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