37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

74°
H -°
L 55°
WSW
6mph
Low tide
3:15 am

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

TIDE TIMES for Tuesday, September 29, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : in 6h 52m at 3:15 am (-0.1 ft)
Next high tide (tomorrow) : 9:26 am (2.6 ft)
Sunset today : 6:51 pm
Sunrise tomorrow : 6:59 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Nov 1843

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:292.41:242.67:080.37:500.66:385:14Waxing Gibbous1Wed
2Thu1:332.22:052.87:530.48:410.36:395:13Waxing Gibbous2Thu
3Fri2:332.22:443.08:350.69:280.16:405:12Waxing Gibbous3Fri
4Sat3:262.23:203.39:150.810:120.06:415:11Waxing Gibbous4Sat
5Sun4:142.33:553.59:541.010:55-0.16:425:10Full Moon5Sun
6Mon5:002.44:283.610:331.211:37-0.16:435:09Full Moon6Mon
7Tue5:432.55:013.711:101.46:445:08Full Moon7Tue
8Wed6:272.55:333.712:18-0.111:45 AM1.56:455:07Full Moon8Wed
9Thu7:132.56:053.71:00-0.112:181.66:465:06Waning Gibbous9Thu
10Fri8:002.46:383.51:43-0.112:461.76:475:05Waning Gibbous10Fri
11Sat8:482.37:173.32:27-0.11:161.66:495:04Waning Gibbous11Sat
12Sun9:382.38:053.13:12-0.12:141.66:505:03Waning Gibbous12Sun
13Mon10:262.39:052.83:59-0.13:511.56:515:03Third Quarter13Mon
14Tue11:132.410:192.54:480.05:141.26:525:02Third Quarter14Tue
15Wed11:582.611:412.35:360.16:240.96:535:01Third Quarter15Wed
16Thu12:422.96:240.27:250.56:545:00Third Quarter16Thu
17Fri1:002.21:273.37:100.58:210.16:555:00Waning Crescent17Fri
18Sat2:122.32:113.77:560.79:15-0.36:564:59Waning Crescent18Sat
19Sun3:172.42:574.18:421.010:08-0.56:574:58Waning Crescent19Sun
20Mon4:162.53:424.49:291.210:59-0.76:584:58New Moon20Mon
21Tue5:102.64:294.610:181.411:50-0.76:594:57New Moon21Tue
22Wed6:032.75:164.611:101.57:004:57New Moon22Wed
23Thu6:542.76:054.412:40-0.712:051.57:014:56Waxing Crescent23Thu
24Fri7:462.66:554.11:29-0.61:021.57:024:56Waxing Crescent24Fri
25Sat8:382.67:483.72:18-0.42:021.57:044:55Waxing Crescent25Sat
26Sun9:302.68:453.23:07-0.33:081.47:054:55Waxing Crescent26Sun
27Mon10:202.69:452.73:56-0.14:171.27:064:55First Quarter27Mon
28Tue11:082.610:492.34:450.05:251.07:074:54First Quarter28Tue
29Wed11:542.711:562.05:330.26:290.77:084:54First Quarter29Wed
30Thu12:382.86:200.47:260.57:094:54Waxing Gibbous30Thu
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 88% 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 Waning Gibbous (88% 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