37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

55°
H 83°
L 52°
WNW
2mph
Low tide
9:44 am

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

TIDE TIMES for Tuesday, September 22, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 2h 16m at 9:44 am (0.3 ft)
Next high tide : 3:55 pm (2.4 ft)
Sunset today : 7:02 pm
Sunrise tomorrow : 6:53 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jan 1859

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:062.13:084.08:521.710:310.07:295:04Waning Crescent1Sat
2Sun4:492.33:504.19:401.711:140.07:295:04New Moon2Sun
3Mon5:292.44:304.110:271.811:56-0.17:295:05New Moon3Mon
4Tue6:082.45:094.011:131.77:295:06New Moon4Tue
5Wed6:472.55:463.812:35-0.111:59 AM1.67:295:07New Moon5Wed
6Thu7:262.56:233.51:13-0.112:451.57:295:08Waxing Crescent6Thu
7Fri8:042.57:013.21:49-0.11:331.47:295:09Waxing Crescent7Fri
8Sat8:422.57:432.82:23-0.12:251.27:295:10Waxing Crescent8Sat
9Sun9:182.68:342.52:540.13:241.17:295:11Waxing Crescent9Sun
10Mon9:532.89:372.23:210.44:290.97:295:12First Quarter10Mon
11Tue10:293.010:532.03:410.65:340.77:285:13First Quarter11Tue
12Wed11:083.33:561.06:370.57:285:14First Quarter12Wed
13Thu12:141.911:54 AM3.74:251.37:360.27:285:15First Quarter13Thu
14Fri1:332.012:474.05:161.58:330.07:285:16Waxing Gibbous14Fri
15Sat2:442.11:454.36:401.79:27-0.27:275:17Waxing Gibbous15Sat
16Sun3:442.32:424.68:051.810:19-0.37:275:18Waxing Gibbous16Sun
17Mon4:362.53:384.79:161.811:08-0.57:275:19Full Moon17Mon
18Tue5:222.64:324.610:221.611:55-0.57:265:20Full Moon18Tue
19Wed6:072.85:254.411:261.47:265:21Full Moon19Wed
20Thu6:502.96:194.012:40-0.512:271.27:255:22Waning Gibbous20Thu
21Fri7:343.07:133.61:22-0.41:280.97:255:23Waning Gibbous21Fri
22Sat8:183.28:103.02:03-0.22:280.77:245:24Waning Gibbous22Sat
23Sun9:023.39:092.62:430.13:310.67:245:25Waning Gibbous23Sun
24Mon9:473.410:122.23:230.44:350.57:235:26Third Quarter24Mon
25Tue10:323.511:192.04:050.85:400.47:225:27Third Quarter25Tue
26Wed11:203.54:521.16:420.47:225:29Third Quarter26Wed
27Thu12:301.912:113.65:451.47:400.47:215:30Third Quarter27Thu
28Fri1:441.91:033.76:421.68:330.37:205:31Waning Crescent28Fri
29Sat2:522.01:563.87:391.79:220.37:195:32Waning Crescent29Sat
30Sun3:432.22:453.98:331.710:080.27:195:33Waning Crescent30Sun
31Mon4:232.33:313.99:241.710:500.17:185:34Waning Crescent31Mon
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 84% 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 (84% 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