37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

66°
H 94°
L 60°
NW
5mph
Low tide
10:25 am

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

TIDE TIMES for Monday, August 24, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 5h 52m at 10:25 am (0.4 ft)
Next high tide : 4:38 pm (2.4 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Gibbous (89% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:093.17:233.51:220.61:220.85:356:35Waning Gibbous1Wed
2Thu8:012.98:023.62:110.61:521.05:366:34Waning Gibbous2Thu
3Fri8:582.78:473.73:060.52:221.25:376:32Waning Gibbous3Fri
4Sat10:012.59:403.84:060.53:001.45:376:31Third Quarter4Sat
5Sun11:072.410:413.85:100.44:101.55:386:29Third Quarter5Sun
6Mon12:132.46:140.35:401.65:396:28Third Quarter6Mon
7Tue1:172.57:130.36:541.55:406:26Waning Crescent7Tue
8Wed12:553.82:142.78:080.27:591.35:416:25Waning Crescent8Wed
9Thu2:003.83:052.98:590.18:591.05:426:23Waning Crescent9Thu
10Fri3:003.83:513.19:460.29:550.85:436:22Waning Crescent10Fri
11Sat3:553.74:343.410:320.210:490.65:436:20New Moon11Sat
12Sun4:473.65:153.511:150.311:410.45:446:18New Moon12Sun
13Mon5:373.45:553.711:570.55:456:17New Moon13Mon
14Tue6:263.26:363.712:300.312:380.75:466:15Waxing Crescent14Tue
15Wed7:153.07:173.71:190.31:190.95:476:14Waxing Crescent15Wed
16Thu8:062.87:593.62:080.32:011.15:486:12Waxing Crescent16Thu
17Fri8:582.68:443.42:590.42:441.35:496:11Waxing Crescent17Fri
18Sat9:532.49:333.33:530.53:341.45:496:09First Quarter18Sat
19Sun10:492.310:263.24:490.54:321.55:506:07First Quarter19Sun
20Mon11:472.211:243.15:470.55:361.55:516:06First Quarter20Mon
21Tue12:442.26:420.56:371.45:526:04First Quarter21Tue
22Wed12:233.01:372.37:330.47:331.25:536:03Waxing Gibbous22Wed
23Thu1:213.02:242.58:190.48:251.05:546:01Waxing Gibbous23Thu
24Fri2:163.03:052.79:020.39:130.85:556:00Waxing Gibbous24Fri
25Sat3:073.13:442.99:430.410:000.65:565:58Waxing Gibbous25Sat
26Sun3:553.14:203.110:220.510:460.45:565:57Full Moon26Sun
27Mon4:413.14:543.410:590.611:310.35:575:55Full Moon27Mon
28Tue5:273.15:293.611:350.75:585:53Full Moon28Tue
29Wed6:143.06:043.712:170.112:110.95:595:52Full Moon29Wed
30Thu7:032.96:423.81:030.112:451.16:005:50Waning Gibbous30Thu
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 89% 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 Waxing Gibbous (89% 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