37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

58°
H 89°
L 55°
NW
3mph
High tide
6:51 am

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

TIDE TIMES for Saturday, August 29, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 1:30 pm (0.4 ft)
Next high tide : in 1h 16m at 6:51 am (3.3 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:33 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1911

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:282.26:250.65:431.85:346:36First Quarter1Fri
2Sat1:332.27:220.66:451.95:356:35Waxing Gibbous2Sat
3Sun12:453.52:312.38:140.57:421.85:366:33Waxing Gibbous3Sun
4Mon1:413.63:172.49:020.48:341.75:376:32Waxing Gibbous4Mon
5Tue2:333.73:572.59:460.39:241.55:386:30Waxing Gibbous5Tue
6Wed3:213.74:332.710:270.210:121.35:386:29Full Moon6Wed
7Thu4:063.65:082.811:050.210:591.15:396:27Full Moon7Thu
8Fri4:503.55:412.911:410.211:450.95:406:26Full Moon8Fri
9Sat5:343.46:133.112:150.35:416:24Full Moon9Sat
10Sun6:203.26:453.312:320.612:470.55:426:23Waning Gibbous10Sun
11Mon7:103.07:183.51:200.51:160.85:436:21Waning Gibbous11Mon
12Tue8:062.77:553.72:110.31:411.15:446:20Waning Gibbous12Tue
13Wed9:082.58:383.83:070.32:031.45:446:18Waning Gibbous13Wed
14Thu10:152.49:293.94:100.32:281.65:456:17Third Quarter14Thu
15Fri11:252.310:313.95:170.23:091.85:466:15Third Quarter15Fri
16Sat12:372.36:230.25:211.95:476:13Third Quarter16Sat
17Sun1:432.37:240.16:501.85:486:12Waning Crescent17Sun
18Mon12:533.92:392.58:200.17:591.65:496:10Waning Crescent18Mon
19Tue2:003.83:252.79:110.09:001.35:506:09Waning Crescent19Tue
20Wed3:013.84:052.99:570.09:580.95:506:07Waning Crescent20Wed
21Thu3:563.64:443.110:390.110:510.65:516:06New Moon21Thu
22Fri4:483.45:203.211:200.211:420.45:526:04New Moon22Fri
23Sat5:373.25:563.411:580.45:536:02New Moon23Sat
24Sun6:263.06:323.412:300.212:350.75:546:01Waxing Crescent24Sun
25Mon7:162.87:073.51:180.21:121.05:555:59Waxing Crescent25Mon
26Tue8:072.67:433.52:050.21:471.25:565:58Waxing Crescent26Tue
27Wed9:012.48:223.42:540.32:231.55:575:56Waxing Crescent27Wed
28Thu9:582.39:063.33:470.43:011.75:575:55First Quarter28Thu
29Fri10:582.29:593.24:450.43:591.85:585:53First Quarter29Fri
30Sat11:592.111:003.25:450.55:171.85:595:52First Quarter30Sat
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 97% 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 (97% 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