37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

66°
H 81°
L 59°
SW
3mph
High tide
11:37 am

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

TIDE TIMES for Thursday, September 3, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 3:31 pm (1.7 ft)
Next high tide : in 2h 40m at 11:37 am (2.3 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (56% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 1901

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:042.53:354.19:301.410:400.07:105:28Full Moon1Fri
2Sat4:482.74:234.010:231.311:230.07:095:29Full Moon2Sat
3Sun5:292.85:083.811:151.27:085:30Full Moon3Sun
4Mon6:082.95:523.612:040.012:041.07:075:31Full Moon4Mon
5Tue6:463.06:353.312:420.112:510.97:065:32Waning Gibbous5Tue
6Wed7:243.07:193.01:200.21:380.87:055:34Waning Gibbous6Wed
7Thu8:023.08:052.71:560.42:270.87:045:35Waning Gibbous7Thu
8Fri8:403.18:552.52:310.63:180.77:035:36Waning Gibbous8Fri
9Sat9:203.19:492.33:050.84:130.77:025:37Third Quarter9Sat
10Sun10:023.110:492.13:391.05:130.77:015:38Third Quarter10Sun
11Mon10:483.211:532.04:141.26:120.67:005:39Third Quarter11Mon
12Tue11:383.35:081.47:090.56:595:40Third Quarter12Tue
13Wed12:592.012:333.46:171.58:020.46:585:41Waning Crescent13Wed
14Thu2:012.11:283.67:201.58:520.26:575:42Waning Crescent14Thu
15Fri2:562.32:233.78:171.49:380.16:565:43Waning Crescent15Fri
16Sat3:432.53:143.89:121.310:220.06:545:45Waning Crescent16Sat
17Sun4:252.74:043.810:051.111:04-0.16:535:46New Moon17Sun
18Mon5:052.94:533.810:580.911:44-0.16:525:47New Moon18Mon
19Tue5:453.25:433.711:510.76:515:48New Moon19Tue
20Wed6:253.46:353.412:240.112:440.56:495:49Waxing Crescent20Wed
21Thu7:063.67:293.21:040.21:380.36:485:50Waxing Crescent21Thu
22Fri7:503.78:272.91:430.52:350.26:475:51Waxing Crescent22Fri
23Sat8:383.89:282.62:240.73:350.26:465:52Waxing Crescent23Sat
24Sun9:303.810:322.43:101.04:390.26:445:53First Quarter24Sun
25Mon10:263.811:392.24:051.25:450.26:435:54First Quarter25Mon
26Tue11:263.75:121.36:470.26:415:55First Quarter26Tue
27Wed12:482.212:293.66:221.47:450.26:405:56Waxing Gibbous27Wed
28Thu1:532.31:313.67:261.38:380.26:395:57Waxing 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 neap phase. Tonight's moon is 56% 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 minimum.

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 Third Quarter (56% illuminated). This places Blackslough Landing, San Joaquin River, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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