37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

67°
H 96°
L 63°
WNW
4mph
Low tide
11:07 am

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

TIDE TIMES for Tuesday, August 25, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 2h 11m at 11:07 am (0.3 ft)
Next high tide : 5:15 pm (2.5 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (94% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 1918

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:583.09:102.32:430.63:400.87:105:28Waning Gibbous1Fri
2Sat9:363.110:082.13:090.94:380.77:095:29Third Quarter2Sat
3Sun10:163.211:142.03:201.15:390.77:085:30Third Quarter3Sun
4Mon11:013.43:281.36:390.67:075:31Third Quarter4Mon
5Tue12:242.011:53 AM3.54:051.57:360.47:065:32Third Quarter5Tue
6Wed1:332.012:503.75:501.68:280.27:055:33Waning Crescent6Wed
7Thu2:342.21:483.97:271.69:180.07:045:35Waning Crescent7Thu
8Fri3:262.32:444.08:321.510:04-0.17:035:36Waning Crescent8Fri
9Sat4:122.53:374.19:321.410:49-0.27:025:37New Moon9Sat
10Sun4:542.84:304.110:301.111:31-0.27:015:38New Moon10Sun
11Mon5:343.05:213.911:260.97:005:39New Moon11Mon
12Tue6:153.36:143.712:12-0.212:220.66:595:40New Moon12Tue
13Wed6:573.57:093.312:530.01:190.46:585:41Waxing Crescent13Wed
14Thu7:403.68:063.01:320.22:160.36:575:42Waxing Crescent14Thu
15Fri8:263.89:062.62:130.53:160.26:565:43Waxing Crescent15Fri
16Sat9:153.810:102.42:550.84:200.36:545:44First Quarter16Sat
17Sun10:083.811:172.23:431.15:250.36:535:45First Quarter17Sun
18Mon11:053.84:421.36:290.36:525:47First Quarter18Mon
19Tue12:262.112:053.75:501.57:290.36:515:48First Quarter19Tue
20Wed1:362.11:053.76:561.58:240.36:505:49Waxing Gibbous20Wed
21Thu2:372.22:043.67:571.49:130.26:485:50Waxing Gibbous21Thu
22Fri3:262.42:573.68:531.39:570.26:475:51Waxing Gibbous22Fri
23Sat4:062.53:453.59:451.210:380.16:465:52Waxing Gibbous23Sat
24Sun4:432.64:293.410:341.011:170.26:445:53Full Moon24Sun
25Mon5:182.85:123.311:210.811:540.26:435:54Full Moon25Mon
26Tue5:522.95:543.112:050.76:425:55Full Moon26Tue
27Wed6:253.06:362.912:290.312:490.66:405:56Full Moon27Wed
28Thu6:583.17:192.81:020.51:320.56:395:57Waning Gibbous28Thu
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 94% 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 (94% 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