37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

70°
H -°
L 62°
W
8mph
High tide
4:41 am

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

TIDE TIMES for Wednesday, August 26, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 11:47 am (0.2 ft)
Next high tide : in 4h 26m at 4:41 am (3.7 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 6:30 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1916

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:462.87:413.51:570.61:301.15:356:35Waxing Crescent1Fri
2Sat8:412.68:183.72:480.51:431.35:366:34Waxing Crescent2Sat
3Sun9:432.49:043.83:460.52:021.55:376:32First Quarter3Sun
4Mon10:512.310:013.94:510.52:341.75:376:31First Quarter4Mon
5Tue12:012.25:570.43:311.85:386:29First Quarter5Tue
6Wed1:082.36:590.36:031.85:396:28First Quarter6Wed
7Thu12:193.92:082.47:560.17:251.65:406:26Waxing Gibbous7Thu
8Fri1:303.92:582.68:470.18:321.35:416:25Waxing Gibbous8Fri
9Sat2:343.93:422.99:350.09:321.05:426:23Waxing Gibbous9Sat
10Sun3:333.84:233.210:190.110:300.65:436:22Full Moon10Sun
11Mon4:293.65:033.411:010.211:240.45:436:20Full Moon11Mon
12Tue5:213.45:423.611:420.45:446:18Full Moon12Tue
13Wed6:133.26:213.812:160.212:220.75:456:17Waning Gibbous13Wed
14Thu7:053.07:013.81:070.11:010.95:466:15Waning Gibbous14Thu
15Fri7:582.77:433.81:580.11:401.25:476:14Waning Gibbous15Fri
16Sat8:532.68:273.72:500.22:211.45:486:12Waning Gibbous16Sat
17Sun9:502.49:163.63:450.43:071.65:496:11Third Quarter17Sun
18Mon10:492.310:103.44:430.54:051.75:496:09Third Quarter18Mon
19Tue11:502.211:093.35:430.55:141.75:506:08Third Quarter19Tue
20Wed12:502.26:400.56:211.65:516:06Third Quarter20Wed
21Thu12:113.21:442.27:320.47:211.55:526:04Waning Crescent21Thu
22Fri1:113.12:292.38:190.38:151.25:536:03Waning Crescent22Fri
23Sat2:073.13:082.59:010.39:051.05:546:01Waning Crescent23Sat
24Sun2:583.03:432.79:400.39:520.75:556:00Waning Crescent24Sun
25Mon3:463.04:172.910:170.410:380.55:555:58New Moon25Mon
26Tue4:323.04:483.210:520.511:220.35:565:57New Moon26Tue
27Wed5:182.95:193.411:250.75:575:55New Moon27Wed
28Thu6:042.95:493.612:060.211:56 AM1.05:585:53New Moon28Thu
29Fri6:522.86:213.812:510.112:231.25:595:52Waxing Crescent29Fri
30Sat7:442.66:573.91:380.112:451.46:005:50Waxing Crescent30Sat
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 98% 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 (98% 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