37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

63°
H -°
L 58°
WNW
4mph
High tide
6:51 am

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

TIDE TIMES for Saturday, August 29, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 1:30 pm (0.4 ft)
Next high tide : in 4h 34m at 6:51 am (3.3 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:33 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Dec 1911

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:022.11:363.07:170.48:280.37:024:46Waxing Gibbous1Fri
2Sat2:122.12:143.47:560.79:17-0.17:034:46Waxing Gibbous2Sat
3Sun3:162.22:523.88:341.010:06-0.47:044:46Waxing Gibbous3Sun
4Mon4:142.43:324.29:131.310:56-0.67:054:46Full Moon4Mon
5Tue5:092.54:154.59:551.511:46-0.77:064:46Full Moon5Tue
6Wed6:022.64:594.710:411.77:064:46Full Moon6Wed
7Thu6:552.65:474.612:36-0.711:33 AM1.77:074:46Waning Gibbous7Thu
8Fri7:492.66:394.41:27-0.712:331.77:084:46Waning Gibbous8Fri
9Sat8:432.67:354.02:18-0.61:411.77:094:46Waning Gibbous9Sat
10Sun9:362.68:373.53:09-0.52:551.57:104:46Waning Gibbous10Sun
11Mon10:282.69:443.04:01-0.34:141.37:114:46Third Quarter11Mon
12Tue11:182.710:552.54:51-0.15:291.07:114:46Third Quarter12Tue
13Wed12:052.95:410.16:390.77:124:46Third Quarter13Wed
14Thu12:072.112:513.16:280.47:400.47:134:46Waning Crescent14Thu
15Fri1:201.91:343.37:140.68:340.17:144:47Waning Crescent15Fri
16Sat2:301.92:163.57:580.99:23-0.17:144:47Waning Crescent16Sat
17Sun3:312.02:563.78:421.210:09-0.17:154:47Waning Crescent17Sun
18Mon4:232.23:343.99:251.410:52-0.27:164:48New Moon18Mon
19Tue5:082.34:124.010:081.611:35-0.17:164:48New Moon19Tue
20Wed5:512.44:494.010:511.87:174:48New Moon20Wed
21Thu6:332.55:254.012:17-0.111:33 AM1.87:174:49New Moon21Thu
22Fri7:162.56:003.812:58-0.112:141.87:184:49Waxing Crescent22Fri
23Sat8:002.46:353.61:39-0.112:571.87:184:50Waxing Crescent23Sat
24Sun8:442.47:133.32:19-0.21:441.77:194:50Waxing Crescent24Sun
25Mon9:262.47:562.92:59-0.12:421.67:194:51Waxing Crescent25Mon
26Tue10:072.48:492.63:37-0.13:511.47:204:52First Quarter26Tue
27Wed10:462.59:542.34:150.15:021.27:204:52First Quarter27Wed
28Thu11:242.711:142.04:520.36:080.87:204:53First Quarter28Thu
29Fri12:033.05:280.67:070.57:214:54First Quarter29Fri
30Sat12:362.012:443.46:060.98:030.27:214:54Waxing Gibbous30Sat
31Sun1:532.01:293.86:491.28:56-0.17:214:55Waxing Gibbous31Sun
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 97% 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 (97% 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