37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

75°
H 82°
L 56°
WNW
11mph
Low tide
1:51 pm

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

TIDE TIMES for Sunday, September 13, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 56m at 1:51 pm (0.8 ft)
Next high tide : 7:49 pm (3.6 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 6:46 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 1873

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:553.79:172.31:531.13:07-0.15:576:35Waxing Crescent1Tue
2Wed8:403.610:162.22:361.34:030.05:556:36First Quarter2Wed
3Thu9:313.411:162.13:281.55:020.25:546:37First Quarter3Thu
4Fri10:273.24:331.66:010.25:526:38First Quarter4Fri
5Sat12:182.111:29 AM3.05:441.66:580.35:516:39First Quarter5Sat
6Sun1:172.112:332.96:491.57:490.25:496:40First Quarter6Sun
7Mon2:072.11:342.87:481.38:360.25:486:41Waxing Gibbous7Mon
8Tue2:492.32:312.88:411.09:180.25:466:42Waxing Gibbous8Tue
9Wed3:262.43:222.79:300.79:570.25:456:43Waxing Gibbous9Wed
10Thu4:002.64:102.710:170.510:340.35:436:44Waxing Gibbous10Thu
11Fri4:322.84:562.711:010.211:090.55:426:45Full Moon11Fri
12Sat5:033.05:412.611:440.111:420.75:406:46Full Moon12Sat
13Sun5:333.26:272.612:27-0.15:396:46Full Moon13Sun
14Mon6:013.47:162.512:121.01:09-0.15:376:47Full Moon14Mon
15Tue6:303.58:082.412:371.21:54-0.25:366:48Waning Gibbous15Tue
16Wed7:033.69:032.312:541.42:43-0.15:356:49Waning Gibbous16Wed
17Thu7:443.610:022.21:121.63:38-0.15:336:50Waning Gibbous17Thu
18Fri8:353.611:032.21:431.74:38-0.15:326:51Third Quarter18Fri
19Sat9:373.42:381.75:40-0.15:306:52Third Quarter19Sat
20Sun12:032.210:52 AM3.25:101.76:38-0.15:296:53Third Quarter20Sun
21Mon1:002.312:133.16:371.47:32-0.15:286:54Third Quarter21Mon
22Tue1:502.51:282.97:461.08:21-0.15:266:55Waning Crescent22Tue
23Wed2:352.82:372.98:470.59:060.05:256:56Waning Crescent23Wed
24Thu3:173.13:392.89:430.19:500.35:246:57Waning Crescent24Thu
25Fri3:573.44:372.710:37-0.210:320.55:236:57New Moon25Fri
26Sat4:363.75:312.711:28-0.411:140.85:216:58New Moon26Sat
27Sun5:153.96:242.612:17-0.55:206:59New Moon27Sun
28Mon5:544.07:162.61:05-0.55:197:00Waxing Crescent28Mon
29Tue6:333.98:092.512:381.31:53-0.45:187:01Waxing Crescent29Tue
30Wed7:153.89:022.41:211.52:42-0.25:167:02Waxing Crescent30Wed
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 8% 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 Crescent (8% 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