37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

55°
H -°
L 49°
NNW
8mph
High tide
12:55 am

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

TIDE TIMES for Tuesday, November 3, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 7:30 am (0.1 ft)
Next high tide (tomorrow) : in 5h 00m at 12:55 am (2.5 ft)
Sunset today : 5:04 pm
Sunrise tomorrow : 6:33 am
Moon phase : Waning Crescent (29% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1786

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:452.16:340.36:201.66:085:55First Quarter1Sun
2Mon1:352.37:240.27:231.36:095:54Waxing Gibbous2Mon
3Tue1:023.02:182.58:090.28:180.96:105:52Waxing Gibbous3Tue
4Wed2:063.02:572.88:510.29:110.66:115:51Waxing Gibbous4Wed
5Thu3:053.03:343.29:310.310:020.26:125:49Waxing Gibbous5Thu
6Fri4:003.04:113.510:100.510:53-0.16:135:48Full Moon6Fri
7Sat4:543.04:483.910:480.711:44-0.36:145:46Full Moon7Sat
8Sun5:483.05:274.111:271.06:155:45Full Moon8Sun
9Mon6:422.96:104.312:35-0.412:071.26:165:43Waning Gibbous9Mon
10Tue7:382.76:564.31:28-0.412:491.46:175:42Waning Gibbous10Tue
11Wed8:372.67:484.22:23-0.31:371.66:185:40Waning Gibbous11Wed
12Thu9:382.58:473.93:20-0.22:381.66:185:39Third Quarter12Thu
13Fri10:392.49:533.64:21-0.13:551.66:195:37Third Quarter13Fri
14Sat11:402.311:013.25:210.05:151.56:205:36Third Quarter14Sat
15Sun12:372.46:190.16:281.26:215:35Third Quarter15Sun
16Mon12:112.91:282.57:110.17:320.96:225:33Waning Crescent16Mon
17Tue1:182.72:132.77:580.28:290.66:235:32Waning Crescent17Tue
18Wed2:202.62:522.98:410.39:190.36:245:30Waning Crescent18Wed
19Thu3:152.53:283.19:210.510:060.16:255:29Waning Crescent19Thu
20Fri4:052.54:023.310:000.710:500.06:265:28New Moon20Fri
21Sat4:522.54:353.510:380.911:32-0.16:275:26New Moon21Sat
22Sun5:362.65:083.611:151.26:285:25New Moon22Sun
23Mon6:202.65:393.612:14-0.111:51 AM1.46:295:24New Moon23Mon
24Tue7:052.56:103.612:560.012:241.56:305:23Waxing Crescent24Tue
25Wed7:522.46:423.51:390.012:531.66:315:21Waxing Crescent25Wed
26Thu8:412.37:183.42:240.11:111.76:325:20Waxing Crescent26Thu
27Fri9:332.28:003.23:120.11:301.76:335:19Waxing Crescent27Fri
28Sat10:262.18:533.04:030.12:291.76:355:18First Quarter28Sat
29Sun11:172.19:582.74:550.14:481.56:365:17First Quarter29Sun
30Mon12:052.25:460.16:041.36:375:15First Quarter30Mon
31Tue12:492.46:330.17:070.96:385:14First Quarter31Tue
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 transitional phase. Tonight's moon is 29% 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 shifting between spring and neap.

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 Waning Crescent (29% illuminated). This places Blackslough Landing, San Joaquin River, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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