37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

73°
H 76°
L 46°
SW
12mph
Low tide
11:56 am

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

TIDE TIMES for Saturday, October 10, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 5m at 11:56 am (0.7 ft)
Next high tide : 5:56 pm (3.6 ft)
Sunset today : 6:35 pm
Sunrise tomorrow : 7:09 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jun 1825

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:524.56:262.712:12-0.54:517:29Full Moon1Wed
2Thu5:384.37:142.712:59-0.44:507:29Waning Gibbous2Thu
3Fri6:244.18:022.712:341.61:44-0.34:507:30Waning Gibbous3Fri
4Sat7:103.78:492.61:281.52:29-0.24:507:31Waning Gibbous4Sat
5Sun7:593.39:352.62:251.53:13-0.14:507:31Waning Gibbous5Sun
6Mon8:522.910:202.63:251.33:570.14:497:32Third Quarter6Mon
7Tue9:492.511:032.74:281.24:420.24:497:32Third Quarter7Tue
8Wed10:512.211:462.85:321.05:270.44:497:33Third Quarter8Wed
9Thu11:562.06:310.76:110.74:497:33Third Quarter9Thu
10Fri12:293.01:031.97:260.56:550.94:497:34Waning Crescent10Fri
11Sat1:113.22:082.08:170.37:391.14:497:34Waning Crescent11Sat
12Sun1:533.53:062.19:060.28:211.44:497:35Waning Crescent12Sun
13Mon2:353.73:592.39:520.19:041.54:487:35Waning Crescent13Mon
14Tue3:153.94:472.410:370.09:471.74:487:36New Moon14Tue
15Wed3:554.15:332.611:21-0.110:311.74:497:36New Moon15Wed
16Thu4:344.26:172.612:05-0.24:497:36New Moon16Thu
17Fri5:144.27:022.712:47-0.34:497:37New Moon17Fri
18Sat5:574.07:472.712:081.71:29-0.34:497:37Waxing Crescent18Sat
19Sun6:433.88:312.81:031.62:11-0.34:497:37Waxing Crescent19Sun
20Mon7:353.49:162.92:041.42:52-0.24:497:38Waxing Crescent20Mon
21Tue8:363.110:013.13:111.23:350.04:497:38First Quarter21Tue
22Wed9:442.710:473.34:221.04:190.34:507:38First Quarter22Wed
23Thu10:572.411:343.65:310.75:060.64:507:38First Quarter23Thu
24Fri12:132.26:370.45:560.94:507:38First Quarter24Fri
25Sat12:243.91:272.17:380.26:501.24:507:38Waxing Gibbous25Sat
26Sun1:164.12:372.28:350.07:451.44:517:39Waxing Gibbous26Sun
27Mon2:084.33:382.49:28-0.18:401.64:517:39Waxing Gibbous27Mon
28Tue2:594.54:322.510:19-0.29:361.74:517:39Full Moon28Tue
29Wed3:484.55:202.711:07-0.210:301.74:527:39Full Moon29Wed
30Thu4:354.46:042.811:52-0.211:241.74:527:39Full 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 0% 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 (0% 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