37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

64°
H 80°
L 52°
WSW
8mph
High tide
12:49 pm

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

TIDE TIMES for Friday, September 4, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 4:16 pm (1.8 ft)
Next high tide : in 5h 10m at 12:49 pm (2.2 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 6:38 am
Moon phase : Third Quarter (45% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Mar 1895

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:103.29:142.31:511.03:210.46:375:59Waxing Crescent1Fri
2Sat8:443.410:182.11:571.24:210.46:356:00First Quarter2Sat
3Sun9:293.511:282.02:141.45:270.46:346:01First Quarter3Sun
4Mon10:243.72:481.66:320.36:326:02First Quarter4Mon
5Tue12:412.011:32 AM3.73:401.77:330.16:316:03First Quarter5Tue
6Wed1:492.112:463.86:151.88:290.06:306:04Waxing Gibbous6Wed
7Thu2:462.21:563.97:491.69:19-0.26:286:05Waxing Gibbous7Thu
8Fri3:322.53:003.88:571.210:06-0.26:276:06Waxing Gibbous8Fri
9Sat4:142.73:593.89:580.910:50-0.26:256:07Full Moon9Sat
10Sun4:533.04:553.610:570.511:31-0.16:246:08Full Moon10Sun
11Mon5:323.35:493.311:520.26:226:08Full Moon11Mon
12Tue6:123.56:433.012:110.212:460.06:216:09Waning Gibbous12Tue
13Wed6:513.77:372.812:490.41:39-0.16:196:10Waning Gibbous13Wed
14Thu7:333.88:332.51:280.82:32-0.16:186:11Waning Gibbous14Thu
15Fri8:163.79:312.32:061.13:280.06:166:12Waning Gibbous15Fri
16Sat9:033.710:322.12:471.34:260.26:156:13Third Quarter16Sat
17Sun9:553.511:352.03:371.55:280.36:136:14Third Quarter17Sun
18Mon10:523.44:431.76:290.46:116:15Third Quarter18Mon
19Tue12:422.011:54 AM3.25:561.77:260.46:106:16Third Quarter19Tue
20Wed1:452.012:573.17:021.58:170.36:086:17Waning Crescent20Wed
21Thu2:352.11:563.18:011.39:020.26:076:18Waning Crescent21Thu
22Fri3:142.22:503.08:541.19:430.26:056:19Waning Crescent22Fri
23Sat3:492.43:392.99:440.810:200.26:046:20Waning Crescent23Sat
24Sun4:222.64:252.910:310.610:560.36:026:21New Moon24Sun
25Mon4:542.85:092.811:150.411:300.46:016:22New Moon25Mon
26Tue5:243.05:532.711:580.25:596:23New Moon26Tue
27Wed5:523.26:382.612:010.612:410.15:586:23New Moon27Wed
28Thu6:203.37:262.512:290.91:230.05:566:24Waxing Crescent28Thu
29Fri6:483.58:172.412:511.22:090.05:556:25Waxing Crescent29Fri
30Sat7:213.69:132.31:021.42:590.15:536:26Waxing Crescent30Sat
31Sun8:023.610:142.21:171.53:570.15:526:27Waxing Crescent31Sun
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 45% 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 (45% 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