37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

62°
H -°
L 57°
WNW
1mph
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 3h 23m 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 - Nov 1911

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:272.51:502.47:340.18:000.96:305:08Waxing Gibbous1Wed
2Thu1:332.52:272.78:150.28:500.56:315:06Waxing Gibbous2Thu
3Fri2:342.53:023.08:530.39:380.26:325:05Waxing Gibbous3Fri
4Sat3:312.53:353.39:290.510:25-0.16:335:04Waxing Gibbous4Sat
5Sun4:252.64:093.710:050.811:12-0.46:345:03Full Moon5Sun
6Mon5:182.64:444.010:401.16:365:02Full Moon6Mon
7Tue6:112.65:224.312:00-0.511:16 AM1.46:375:01Full Moon7Tue
8Wed7:052.66:044.312:50-0.611:53 AM1.66:385:00Waning Gibbous8Wed
9Thu8:022.56:514.31:41-0.612:351.76:394:59Waning Gibbous9Thu
10Fri9:012.47:454.02:35-0.51:301.86:404:58Waning Gibbous10Fri
11Sat10:012.48:483.73:32-0.42:491.86:414:58Third Quarter11Sat
12Sun10:592.49:593.34:31-0.34:191.66:424:57Third Quarter12Sun
13Mon11:552.411:132.95:28-0.25:421.36:434:56Third Quarter13Mon
14Tue12:462.66:22-0.16:531.06:444:55Third Quarter14Tue
15Wed12:262.61:322.87:110.17:560.66:454:54Waning Crescent15Wed
16Thu1:372.32:143.07:570.28:510.26:464:54Waning Crescent16Thu
17Fri2:422.22:533.38:390.59:41-0.16:474:53Waning Crescent17Fri
18Sat3:402.23:303.59:200.710:27-0.26:484:52Waning Crescent18Sat
19Sun4:322.34:053.710:001.011:11-0.36:504:52New Moon19Sun
20Mon5:202.44:393.810:401.311:53-0.36:514:51New Moon20Mon
21Tue6:052.45:133.911:191.56:524:50New Moon21Tue
22Wed6:512.55:463.812:35-0.211:57 AM1.76:534:50New Moon22Wed
23Thu7:372.46:203.71:18-0.212:331.86:544:49Waxing Crescent23Thu
24Fri8:252.46:553.52:02-0.11:091.86:554:49Waxing Crescent24Fri
25Sat9:152.37:353.32:47-0.11:501.86:564:48Waxing Crescent25Sat
26Sun10:042.28:213.03:340.02:581.76:574:48Waxing Crescent26Sun
27Mon10:522.29:182.74:220.04:211.66:584:48First Quarter27Mon
28Tue11:372.210:282.45:090.05:361.36:594:47First Quarter28Tue
29Wed12:192.45:550.16:401.07:004:47First Quarter29Wed
30Thu12:582.66:370.27:360.67:014:47First Quarter30Thu
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