37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

85°
H -°
L 56°
W
17mph
High tide
7:13 pm

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

TIDE TIMES for Saturday, September 12, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 1:50 am (0.3 ft)
Next high tide : in 3h 06m at 7:13 pm (3.5 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 6:45 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jan 1875

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:351.812:423.26:210.97:540.37:295:04Waning Crescent1Fri
2Sat1:451.81:243.47:051.28:440.27:295:04Waning Crescent2Sat
3Sun2:501.92:073.77:491.59:310.17:295:05Waning Crescent3Sun
4Mon3:452.12:493.98:331.710:170.07:295:06Waning Crescent4Mon
5Tue4:332.33:314.19:171.811:01-0.17:295:07New Moon5Tue
6Wed5:172.44:114.210:011.911:44-0.27:295:08New Moon6Wed
7Thu5:592.54:504.210:451.97:295:09New Moon7Thu
8Fri6:412.55:294.112:26-0.311:31 AM1.87:295:10New Moon8Fri
9Sat7:222.56:103.91:06-0.312:211.67:295:11Waxing Crescent9Sat
10Sun8:032.66:553.51:44-0.31:161.57:295:12Waxing Crescent10Sun
11Mon8:432.67:473.12:21-0.32:171.37:285:13Waxing Crescent11Mon
12Tue9:232.88:482.72:58-0.13:261.07:285:14Waxing Crescent12Tue
13Wed10:033.010:002.33:330.24:380.87:285:15First Quarter13Wed
14Thu10:453.311:182.14:090.55:480.57:285:16First Quarter14Thu
15Fri11:323.64:490.96:540.27:275:17First Quarter15Fri
16Sat12:392.012:233.95:381.27:550.07:275:18Waxing Gibbous16Sat
17Sun1:592.01:184.26:391.58:53-0.17:265:19Waxing Gibbous17Sun
18Mon3:102.22:154.47:451.79:47-0.27:265:20Waxing Gibbous18Mon
19Tue4:082.43:104.58:481.810:38-0.27:265:21Waxing Gibbous19Tue
20Wed4:582.54:024.59:491.811:26-0.37:255:22Full Moon20Wed
21Thu5:422.64:514.410:471.77:255:23Full Moon21Thu
22Fri6:242.75:384.212:11-0.311:43 AM1.57:245:24Full Moon22Fri
23Sat7:052.76:253.812:53-0.212:371.47:235:25Waning Gibbous23Sat
24Sun7:452.87:113.41:32-0.21:311.27:235:26Waning Gibbous24Sun
25Mon8:252.88:002.92:100.02:251.07:225:28Waning Gibbous25Mon
26Tue9:032.88:522.52:470.23:210.97:225:29Waning Gibbous26Tue
27Wed9:422.99:502.23:230.44:200.87:215:30Third Quarter27Wed
28Thu10:213.010:532.03:590.75:210.77:205:31Third Quarter28Thu
29Fri11:023.14:351.16:210.67:195:32Third Quarter29Fri
30Sat12:021.911:47 AM3.35:161.37:180.57:195:33Third Quarter30Sat
31Sun1:131.912:363.56:091.68:120.47:185:34Waning 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 spring phase. Tonight's moon is 3% 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 New Moon (3% 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