37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

69°
H -°
L 59°
W
6mph
Low tide
1:05 am

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

TIDE TIMES for Saturday, August 29, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 3h 41m at 1:05 am (0.9 ft)
Next high tide : 6:51 am (3.3 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 6:32 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - May 1912

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:523.76:032.511:56-0.411:311.25:096:56Full Moon1Wed
2Thu5:283.86:522.512:40-0.45:086:57Full Moon2Thu
3Fri6:033.87:402.412:101.41:25-0.35:066:57Waning Gibbous3Fri
4Sat6:393.78:302.412:491.62:10-0.25:056:58Waning Gibbous4Sat
5Sun7:173.69:212.31:281.72:580.05:046:59Waning Gibbous5Sun
6Mon8:003.410:132.22:101.73:480.05:037:00Waning Gibbous6Mon
7Tue8:483.111:042.13:081.74:400.15:027:01Third Quarter7Tue
8Wed9:462.811:542.14:251.65:320.15:017:02Third Quarter8Wed
9Thu10:522.55:391.46:210.15:007:03Third Quarter9Thu
10Fri12:402.212:012.36:441.17:060.24:597:04Third Quarter10Fri
11Sat1:222.31:102.27:410.87:470.34:587:05Waning Crescent11Sat
12Sun2:002.62:152.28:330.58:260.54:577:06Waning Crescent12Sun
13Mon2:362.93:152.29:220.29:020.74:567:07Waning Crescent13Mon
14Tue3:103.34:112.410:08-0.19:381.04:557:07Waning Crescent14Tue
15Wed3:443.65:042.510:55-0.310:131.34:557:08New Moon15Wed
16Thu4:204.05:562.611:42-0.510:491.54:547:09New Moon16Thu
17Fri4:574.26:482.612:30-0.54:537:10New Moon17Fri
18Sat5:384.37:422.61:19-0.64:527:11Waxing Crescent18Sat
19Sun6:244.38:372.512:101.82:10-0.54:517:12Waxing Crescent19Sun
20Mon7:154.19:332.41:041.83:03-0.54:517:13Waxing Crescent20Mon
21Tue8:143.810:272.42:171.83:58-0.44:507:13Waxing Crescent21Tue
22Wed9:213.411:192.53:431.64:52-0.34:497:14First Quarter22Wed
23Thu10:342.95:061.35:44-0.14:497:15First Quarter23Thu
24Fri12:092.711:48 AM2.56:211.06:330.14:487:16First Quarter24Fri
25Sat12:562.91:032.27:270.67:200.34:477:17Waxing Gibbous25Sat
26Sun1:403.22:142.18:260.28:040.64:477:17Waxing Gibbous26Sun
27Mon2:223.43:182.19:19-0.18:470.94:467:18Waxing Gibbous27Mon
28Tue3:023.74:152.210:07-0.29:301.24:467:19Waxing Gibbous28Tue
29Wed3:413.95:062.310:53-0.310:121.44:457:20Full Moon29Wed
30Thu4:194.05:532.411:38-0.310:551.74:457:20Full Moon30Thu
31Fri4:564.16:382.512:21-0.24:447:21Full Moon31Fri
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 100% 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 (100% 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