37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

79°
H -°
L 60°
W
11mph
High tide
10:51 pm

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 (tomorrow) : 6:43 am (0.3 ft)
Next high tide : in 6h 58m at 10:51 pm (4.0 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 - Mar 1899

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:413.38:312.51:350.92:400.46:375:59Waning Gibbous1Wed
2Thu8:163.49:292.31:511.13:350.46:356:00Waning Gibbous2Thu
3Fri8:583.510:332.22:061.34:370.46:346:01Third Quarter3Fri
4Sat9:513.611:412.12:351.45:420.36:326:02Third Quarter4Sat
5Sun10:543.63:261.56:450.26:316:03Third Quarter5Sun
6Mon12:492.112:053.75:441.67:420.06:296:04Third Quarter6Mon
7Tue1:512.21:163.77:131.48:350.06:286:05Waning Crescent7Tue
8Wed2:452.52:233.78:211.29:24-0.16:276:06Waning Crescent8Wed
9Thu3:322.73:243.69:230.810:10-0.16:256:07Waning Crescent9Thu
10Fri4:153.04:203.510:210.510:540.06:246:08New Moon10Fri
11Sat4:563.35:143.411:160.211:360.26:226:09New Moon11Sat
12Sun5:373.56:063.212:090.06:216:09New Moon12Sun
13Mon6:183.76:573.012:180.41:00-0.16:196:10Waxing Crescent13Mon
14Tue6:593.87:502.712:580.71:510.06:186:11Waxing Crescent14Tue
15Wed7:423.78:432.51:390.92:430.16:166:12Waxing Crescent15Wed
16Thu8:273.69:382.32:211.13:370.26:146:13Waxing Crescent16Thu
17Fri9:153.510:352.23:061.34:340.36:136:14First Quarter17Fri
18Sat10:083.311:352.14:021.45:330.46:116:15First Quarter18Sat
19Sun11:053.15:071.56:310.46:106:16First Quarter19Sun
20Mon12:352.012:063.06:141.47:240.36:086:17First Quarter20Mon
21Tue1:312.11:062.97:151.38:130.36:076:18Waxing Gibbous21Tue
22Wed2:202.22:042.98:101.18:570.26:056:19Waxing Gibbous22Wed
23Thu3:022.32:572.99:020.89:380.36:046:20Waxing Gibbous23Thu
24Fri3:402.63:462.99:500.610:160.36:026:21Waxing Gibbous24Fri
25Sat4:152.84:322.810:370.410:530.46:016:22Full Moon25Sat
26Sun4:483.05:172.811:210.211:280.65:596:23Full Moon26Sun
27Mon5:203.26:012.812:040.15:586:24Full Moon27Mon
28Tue5:523.46:482.712:010.812:480.05:566:24Full Moon28Tue
29Wed6:233.67:372.612:311.01:330.05:556:25Waning Gibbous29Wed
30Thu6:573.68:292.512:571.22:210.05:536:26Waning Gibbous30Thu
31Fri7:373.79:252.31:201.43:140.05:526:27Waning Gibbous31Fri
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