37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

82°
H 87°
L 56°
WSW
9mph
Low tide
1:14 pm

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 20m at 1:14 pm (0.5 ft)
Next high tide : 7:13 pm (3.5 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 6:45 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jun 1875

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:343.93:562.49:48-0.48:571.34:517:29Waning Crescent1Tue
2Wed3:184.34:552.510:41-0.69:441.54:517:29New Moon2Wed
3Thu4:044.65:502.611:33-0.710:351.74:507:30New Moon3Thu
4Fri4:514.86:442.712:24-0.74:507:31New Moon4Fri
5Sat5:404.77:372.71:15-0.64:507:31Waxing Crescent5Sat
6Sun6:314.58:302.612:301.82:05-0.54:497:32Waxing Crescent6Sun
7Mon7:254.19:222.61:331.82:55-0.34:497:32Waxing Crescent7Mon
8Tue8:223.610:122.62:401.63:44-0.24:497:33Waxing Crescent8Tue
9Wed9:233.111:002.73:511.54:330.04:497:33First Quarter9Wed
10Thu10:272.611:452.75:031.25:200.24:497:34First Quarter10Thu
11Fri11:332.26:110.96:050.44:497:34First Quarter11Fri
12Sat12:282.912:422.07:110.66:480.64:497:35First Quarter12Sat
13Sun1:093.11:511.98:050.47:310.94:497:35Waxing Gibbous13Sun
14Mon1:483.32:542.08:540.28:121.24:497:36Waxing Gibbous14Mon
15Tue2:273.53:502.19:400.18:541.54:497:36Waxing Gibbous15Tue
16Wed3:063.84:392.310:240.09:351.74:497:36Waxing Gibbous16Wed
17Thu3:434.05:242.411:080.010:161.94:497:37Full Moon17Thu
18Fri4:204.16:082.511:510.010:562.04:497:37Full Moon18Fri
19Sat4:564.16:512.612:33-0.14:497:37Full Moon19Sat
20Sun5:314.17:362.51:14-0.14:497:38Full Moon20Sun
21Mon6:073.98:202.512:162.01:55-0.24:497:38Waning Gibbous21Mon
22Tue6:463.79:032.51:021.92:35-0.24:507:38Waning Gibbous22Tue
23Wed7:303.39:442.52:001.73:14-0.14:507:38Waning Gibbous23Wed
24Thu8:243.010:232.73:101.53:520.04:507:38Third Quarter24Thu
25Fri9:292.611:022.94:261.34:300.24:517:39Third Quarter25Fri
26Sat10:472.311:433.25:371.05:080.54:517:39Third Quarter26Sat
27Sun12:092.16:420.65:490.94:517:39Third Quarter27Sun
28Mon12:263.61:302.17:420.26:341.24:527:39Waning Crescent28Mon
29Tue1:124.02:432.28:390.07:241.54:527:39Waning Crescent29Tue
30Wed2:024.43:482.49:34-0.28:201.84:527:39Waning Crescent30Wed
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 3% 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 (3% 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