37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

54°
H 92°
L 57°
WNW
4mph
Low tide
9:41 am

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

TIDE TIMES for Monday, September 7, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 3h 23m at 9:41 am (0.1 ft)
Next high tide : 3:56 pm (2.5 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waning Crescent (14% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jun 1884

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:412.36:120.86:110.44:447:22First Quarter1Sun
2Mon12:303.012:472.17:120.66:590.64:437:23Waxing Gibbous2Mon
3Tue1:163.21:512.18:060.47:460.84:437:23Waxing Gibbous3Tue
4Wed2:003.32:502.18:550.28:301.04:437:24Waxing Gibbous4Wed
5Thu2:413.53:432.29:420.19:141.24:427:25Waxing Gibbous5Thu
6Fri3:213.74:302.410:260.09:581.34:427:25Full Moon6Fri
7Sat4:003.85:152.511:090.010:411.44:427:26Full Moon7Sat
8Sun4:373.95:582.611:51-0.111:241.54:427:26Full Moon8Sun
9Mon5:133.86:422.612:32-0.14:427:27Full Moon9Mon
10Tue5:483.87:252.612:061.61:13-0.14:427:27Full Moon10Tue
11Wed6:223.68:092.612:491.61:52-0.14:427:28Waning Gibbous11Wed
12Thu6:593.48:532.61:341.62:32-0.14:427:28Waning Gibbous12Thu
13Fri7:413.19:372.72:251.53:110.04:427:29Waning Gibbous13Fri
14Sat8:312.910:202.83:251.43:520.14:427:29Third Quarter14Sat
15Sun9:342.611:032.94:321.24:340.34:427:29Third Quarter15Sun
16Mon10:472.411:483.25:391.05:200.54:427:30Third Quarter16Mon
17Tue12:052.36:410.76:080.74:427:30Third Quarter17Tue
18Wed12:353.51:202.37:390.47:001.04:427:30Waning Crescent18Wed
19Thu1:243.92:292.48:350.17:531.24:427:31Waning Crescent19Thu
20Fri2:144.23:312.69:28-0.18:471.34:427:31Waning Crescent20Fri
21Sat3:054.54:282.710:21-0.39:431.44:437:31New Moon21Sat
22Sun3:554.65:202.911:12-0.410:401.54:437:31New Moon22Sun
23Mon4:454.76:113.012:01-0.44:437:31New Moon23Mon
24Tue5:364.57:013.012:49-0.44:437:32New Moon24Tue
25Wed6:264.37:503.112:361.41:36-0.34:447:32Waxing Crescent25Wed
26Thu7:193.98:393.11:351.32:22-0.24:447:32Waxing Crescent26Thu
27Fri8:133.49:283.12:351.33:080.04:457:32Waxing Crescent27Fri
28Sat9:103.010:163.23:371.13:540.24:457:32First Quarter28Sat
29Sun10:092.611:023.24:401.04:410.54:457:32First Quarter29Sun
30Mon11:112.311:493.35:430.95:290.74:467:32First Quarter30Mon
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 14% 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 Crescent (14% 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