37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

68°
H -°
L 58°
WSW
5mph
Low tide
1:01 am

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

TIDE TIMES for Saturday, September 12, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 2h 46m at 1:01 am (0.4 ft)
Next high tide : 6:56 am (3.2 ft)
Sunset today : 7:20 pm
Sunrise tomorrow : 6:44 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Nov 1876

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:042.64:303.910:271.111:45-0.46:395:13Full Moon1Wed
2Thu5:552.65:054.110:591.46:405:12Full Moon2Thu
3Fri6:472.65:434.312:32-0.511:31 AM1.66:415:11Waning Gibbous3Fri
4Sat7:412.56:274.21:21-0.512:061.76:425:10Waning Gibbous4Sat
5Sun8:382.47:174.12:14-0.412:501.86:435:09Waning Gibbous5Sun
6Mon9:372.38:163.83:09-0.41:571.86:445:08Waning Gibbous6Mon
7Tue10:352.39:253.44:06-0.33:381.76:455:07Third Quarter7Tue
8Wed11:302.410:403.05:04-0.25:091.46:465:06Third Quarter8Wed
9Thu12:222.55:59-0.16:261.06:475:05Third Quarter9Thu
10Fri1:092.76:490.07:320.66:495:04Waning Crescent10Fri
11Sat1:112.41:533.07:360.28:300.26:505:03Waning Crescent11Sat
12Sun2:202.22:343.38:190.49:23-0.16:515:03Waning Crescent12Sun
13Mon3:222.23:133.69:010.710:12-0.36:525:02Waning Crescent13Mon
14Tue4:182.33:513.89:431.010:58-0.46:535:01New Moon14Tue
15Wed5:082.44:273.910:241.311:42-0.46:545:00New Moon15Wed
16Thu5:552.45:034.011:051.56:555:00New Moon16Thu
17Fri6:412.55:394.012:25-0.311:45 AM1.76:564:59New Moon17Fri
18Sat7:272.56:143.81:08-0.212:251.86:574:58Waxing Crescent18Sat
19Sun8:152.46:523.61:53-0.11:051.86:584:58Waxing Crescent19Sun
20Mon9:032.37:323.32:38-0.11:511.86:594:57Waxing Crescent20Mon
21Tue9:532.28:193.03:250.02:531.77:004:57Waxing Crescent21Tue
22Wed10:402.29:152.74:120.04:091.67:014:56First Quarter22Wed
23Thu11:252.210:212.34:590.05:231.37:024:56First Quarter23Thu
24Fri12:082.35:440.16:281.07:034:55First Quarter24Fri
25Sat12:472.56:270.27:250.77:044:55First Quarter25Sat
26Sun12:492.01:242.97:060.58:160.37:054:55Waxing Gibbous26Sun
27Mon1:592.02:013.27:440.79:050.07:064:54Waxing Gibbous27Mon
28Tue3:022.12:383.68:201.09:53-0.27:074:54Waxing Gibbous28Tue
29Wed4:002.33:164.08:561.310:40-0.47:084:54Full Moon29Wed
30Thu4:542.43:574.49:341.511:29-0.57:094:53Full Moon30Thu
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 1% 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 (1% 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