37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

76°
H -°
L 50°
WSW
14mph
High tide
6:40 pm

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

TIDE TIMES for Sunday, September 27, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 1:34 am (0.0 ft)
Next high tide : in 51m at 6:40 pm (3.6 ft)
Sunset today : 6:54 pm
Sunrise tomorrow : 6:58 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1848

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:363.07:573.21:480.71:580.85:426:42Waxing Crescent1Fri
2Sat8:252.88:373.22:360.72:371.05:436:40Waxing Crescent2Sat
3Sun9:172.69:203.23:280.73:171.25:446:39First Quarter3Sun
4Mon10:132.410:063.24:230.74:021.35:456:37First Quarter4Mon
5Tue11:122.310:573.25:220.74:581.55:466:36First Quarter5Tue
6Wed12:132.26:200.65:591.55:466:34First Quarter6Wed
7Thu1:132.37:140.56:571.55:476:32First Quarter7Thu
8Fri12:493.32:082.48:050.47:521.45:486:31Waxing Gibbous8Fri
9Sat1:453.42:562.68:510.38:431.35:496:29Waxing Gibbous9Sat
10Sun2:383.53:392.89:360.29:331.15:506:28Waxing Gibbous10Sun
11Mon3:293.64:203.110:180.210:230.95:516:26Full Moon11Mon
12Tue4:183.74:593.311:000.211:130.65:526:25Full Moon12Tue
13Wed5:073.65:383.511:410.35:526:23Full Moon13Wed
14Thu5:573.56:183.712:030.412:210.55:536:22Full Moon14Thu
15Fri6:503.37:003.812:540.31:020.75:546:20Waning Gibbous15Fri
16Sat7:463.17:463.91:480.21:440.95:556:18Waning Gibbous16Sat
17Sun8:452.98:373.82:440.12:301.15:566:17Waning Gibbous17Sun
18Mon9:472.79:333.83:450.23:251.35:576:15Third Quarter18Mon
19Tue10:512.510:343.74:480.24:311.45:586:14Third Quarter19Tue
20Wed11:562.511:383.65:510.25:411.45:596:12Third Quarter20Wed
21Thu12:592.56:510.26:481.35:596:11Waning Crescent21Thu
22Fri12:433.51:572.67:460.27:491.26:006:09Waning Crescent22Fri
23Sat1:453.42:472.88:360.28:451.06:016:08Waning Crescent23Sat
24Sun2:423.33:302.99:230.39:360.86:026:06Waning Crescent24Sun
25Mon3:343.34:103.110:060.310:250.66:036:04New Moon25Mon
26Tue4:213.24:473.210:480.411:110.56:046:03New Moon26Tue
27Wed5:063.25:233.311:280.511:560.46:056:01New Moon27Wed
28Thu5:503.15:583.312:060.76:066:00New Moon28Thu
29Fri6:342.96:333.312:390.312:440.96:065:58Waxing Crescent29Fri
30Sat7:202.87:083.31:220.31:211.06:075:57Waxing Crescent30Sat
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 99% 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 Full Moon (99% 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