37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

81°
H -°
L 62°
W
9mph
High tide
3:06 am

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

TIDE TIMES for Monday, August 24, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 10:25 am (0.4 ft)
Next high tide : in 5h 58m at 3:06 am (3.7 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Gibbous (82% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jun 1921

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:173.01:532.18:120.47:450.84:447:22Waning Crescent1Wed
2Thu1:593.32:542.39:010.28:281.04:447:22Waning Crescent2Thu
3Fri2:403.73:492.49:480.09:111.24:437:23Waning Crescent3Fri
4Sat3:224.04:412.610:36-0.29:561.44:437:24New Moon4Sat
5Sun4:044.25:312.711:23-0.410:441.54:437:24New Moon5Sun
6Mon4:474.36:212.812:10-0.54:437:25New Moon6Mon
7Tue5:334.37:112.912:57-0.54:427:25New Moon7Tue
8Wed6:224.28:022.912:311.51:45-0.54:427:26Waxing Crescent8Wed
9Thu7:153.98:532.91:311.42:33-0.44:427:26Waxing Crescent9Thu
10Fri8:133.69:443.02:351.33:21-0.24:427:27Waxing Crescent10Fri
11Sat9:163.110:343.13:441.24:110.04:427:27First Quarter11Sat
12Sun10:242.711:253.24:541.05:030.24:427:28First Quarter12Sun
13Mon11:332.46:020.75:540.44:427:28First Quarter13Mon
14Tue12:153.412:432.27:060.56:450.74:427:29Waxing Gibbous14Tue
15Wed1:053.61:522.28:030.27:360.94:427:29Waxing Gibbous15Wed
16Thu1:533.82:552.28:560.18:251.14:427:29Waxing Gibbous16Thu
17Fri2:393.93:512.49:460.09:131.34:427:30Waxing Gibbous17Fri
18Sat3:244.04:402.510:320.010:011.54:427:30Full Moon18Sat
19Sun4:064.15:252.611:16-0.110:491.54:427:30Full Moon19Sun
20Mon4:464.16:082.711:59-0.111:351.64:427:31Full Moon20Mon
21Tue5:254.06:512.712:41-0.14:437:31Full Moon21Tue
22Wed6:043.87:332.712:221.61:210.04:437:31Waning Gibbous22Wed
23Thu6:423.68:162.71:091.62:010.04:437:31Waning Gibbous23Thu
24Fri7:233.38:592.71:571.52:400.14:437:31Waning Gibbous24Fri
25Sat8:063.09:412.72:501.43:190.24:447:32Waning Gibbous25Sat
26Sun8:562.710:232.83:481.33:590.44:447:32Third Quarter26Sun
27Mon9:542.411:042.94:491.24:380.54:447:32Third Quarter27Mon
28Tue11:012.211:463.25:501.05:190.84:457:32Third Quarter28Tue
29Wed12:132.16:480.86:031.04:457:32Third Quarter29Wed
30Thu12:303.41:232.27:420.56:501.24:457:32Waning Crescent30Thu
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 82% 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 (82% 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