37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

56°
H 81°
L 59°
SSW
2mph
High tide
11:37 am

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

TIDE TIMES for Thursday, September 3, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 3:31 pm (1.7 ft)
Next high tide : in 4h 14m at 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 - Sep 1901

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:053.37:193.81:120.41:160.75:356:36Waning Gibbous1Sun
2Mon8:013.08:053.92:070.31:551.05:356:34Waning Gibbous2Mon
3Tue9:022.88:564.03:060.32:391.25:366:33Waning Gibbous3Tue
4Wed10:052.69:523.94:080.33:321.45:376:31Third Quarter4Wed
5Thu11:112.410:533.95:130.34:401.55:386:30Third Quarter5Thu
6Fri12:172.46:160.35:531.55:396:28Third Quarter6Fri
7Sat1:212.57:150.37:001.45:406:27Waning Crescent7Sat
8Sun1:023.72:192.68:090.38:021.35:416:25Waning Crescent8Sun
9Mon2:033.63:072.88:590.38:581.15:416:24Waning Crescent9Mon
10Tue2:593.63:503.09:440.39:510.95:426:22Waning Crescent10Tue
11Wed3:493.54:293.110:270.310:410.75:436:21New Moon11Wed
12Thu4:373.45:063.211:070.411:280.65:446:19New Moon12Thu
13Fri5:223.35:423.311:460.65:456:17New Moon13Fri
14Sat6:063.16:183.412:130.512:240.75:466:16New Moon14Sat
15Sun6:503.06:533.412:570.51:010.95:476:14Waxing Crescent15Sun
16Mon7:362.87:293.41:420.51:361.15:476:13Waxing Crescent16Mon
17Tue8:252.68:073.32:280.52:111.35:486:11Waxing Crescent17Tue
18Wed9:172.48:483.33:180.52:461.45:496:10Waxing Crescent18Wed
19Thu10:122.39:363.24:130.63:281.55:506:08First Quarter19Thu
20Fri11:102.210:313.15:100.54:371.65:516:07First Quarter20Fri
21Sat12:082.26:070.55:501.55:526:05First Quarter21Sat
22Sun1:042.37:010.46:531.45:536:03First Quarter22Sun
23Mon12:363.11:552.47:500.37:501.25:536:02Waxing Gibbous23Mon
24Tue1:373.12:402.78:350.38:420.95:546:00Waxing Gibbous24Tue
25Wed2:353.23:213.09:180.39:330.75:555:59Waxing Gibbous25Wed
26Thu3:293.34:003.310:000.310:240.45:565:57Full Moon26Thu
27Fri4:223.34:393.610:400.511:140.15:575:56Full Moon27Fri
28Sat5:133.35:183.811:210.65:585:54Full Moon28Sat
29Sun6:053.25:594.012:05-0.112:020.85:595:52Full Moon29Sun
30Mon6:593.16:434.112:57-0.212:441.06:005:51Waning Gibbous30Mon
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