37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

58°
H 90°
L 53°
WNW
6mph
High tide
8:36 am

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

TIDE TIMES for Monday, September 14, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 2:27 pm (1.1 ft)
Next high tide : in 1h 50m at 8:36 am (2.8 ft)
Sunset today : 7:15 pm
Sunrise tomorrow : 6:46 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1871

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:343.57:123.312:430.81:110.45:426:42Waning Gibbous1Fri
2Sat7:233.27:523.31:340.71:500.65:436:41Waning Gibbous2Sat
3Sun8:152.88:323.32:250.62:290.85:436:39Waning Gibbous3Sun
4Mon9:102.69:143.33:180.63:091.15:446:38Waning Gibbous4Mon
5Tue10:072.49:593.24:140.63:531.35:456:36Third Quarter5Tue
6Wed11:082.210:473.35:130.64:461.55:466:35Third Quarter6Wed
7Thu12:122.26:120.65:451.75:476:33Third Quarter7Thu
8Fri1:152.27:090.66:451.75:486:32Third Quarter8Fri
9Sat12:383.42:122.38:010.57:401.75:496:30Waning Crescent9Sat
10Sun1:343.43:002.48:490.48:311.55:496:29Waning Crescent10Sun
11Mon2:263.53:422.69:340.39:201.45:506:27Waning Crescent11Mon
12Tue3:153.64:212.710:160.210:081.25:516:26Waning Crescent12Tue
13Wed4:013.64:572.910:560.210:541.05:526:24New Moon13Wed
14Thu4:463.55:323.111:330.211:410.85:536:23New Moon14Thu
15Fri5:313.46:063.212:100.35:546:21New Moon15Fri
16Sat6:193.36:413.412:280.512:440.55:556:19Waxing Crescent16Sat
17Sun7:113.07:183.51:170.41:180.75:556:18Waxing Crescent17Sun
18Mon8:072.87:583.72:090.31:511.05:566:16Waxing Crescent18Mon
19Tue9:092.68:443.73:060.22:251.35:576:15Waxing Crescent19Tue
20Wed10:142.49:393.84:090.23:091.55:586:13First Quarter20Wed
21Thu11:222.310:413.85:140.24:241.75:596:12First Quarter21Thu
22Fri12:312.36:190.15:501.76:006:10First Quarter22Fri
23Sat1:352.47:190.17:021.66:016:08Waxing Gibbous23Sat
24Sun12:583.72:302.68:140.18:061.46:026:07Waxing Gibbous24Sun
25Mon2:033.73:182.89:050.19:041.16:026:05Waxing Gibbous25Mon
26Tue3:023.63:593.09:510.19:590.86:036:04Waxing Gibbous26Tue
27Wed3:563.54:383.110:340.210:500.66:046:02Full Moon27Wed
28Thu4:463.45:153.311:150.311:390.46:056:01Full Moon28Thu
29Fri5:343.25:513.311:550.56:065:59Full Moon29Fri
30Sat6:223.06:273.412:260.312:330.76:075:58Waning Gibbous30Sat
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 14% 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 (14% 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