37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

79°
H -°
L 72°
W
4mph
High tide
5:15 am

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

TIDE TIMES for Thursday, September 10, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 11:56 am (0.1 ft)
Next high tide : in 4h 22m at 5:15 am (3.7 ft)
Sunset today : 7:21 pm
Sunrise tomorrow : 6:43 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jun 1878

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:484.16:442.512:26-0.34:517:29New Moon1Sat
2Sun5:264.17:322.51:10-0.34:507:29New Moon2Sun
3Mon6:064.08:192.512:031.81:54-0.44:507:30Waxing Crescent3Mon
4Tue6:523.89:062.512:571.82:39-0.44:507:31Waxing Crescent4Tue
5Wed7:443.59:522.62:051.63:23-0.34:507:31Waxing Crescent5Wed
6Thu8:463.110:372.73:231.44:08-0.24:497:32First Quarter6Thu
7Fri9:582.611:212.94:421.14:540.14:497:33First Quarter7Fri
8Sat11:162.35:550.85:400.34:497:33First Quarter8Sat
9Sun12:063.312:352.17:000.46:270.74:497:34First Quarter9Sun
10Mon12:523.61:512.18:000.17:141.04:497:34Waxing Gibbous10Mon
11Tue1:404.03:012.28:56-0.28:031.34:497:35Waxing Gibbous11Tue
12Wed2:284.34:032.39:49-0.38:541.54:497:35Waxing Gibbous12Wed
13Thu3:154.54:572.510:40-0.49:471.74:497:35Full Moon13Thu
14Fri4:024.65:462.611:29-0.310:401.84:497:36Full Moon14Fri
15Sat4:484.56:332.612:16-0.34:497:36Full Moon15Sat
16Sun5:334.47:192.61:01-0.24:497:37Waning Gibbous16Sun
17Mon6:184.18:042.612:281.81:44-0.24:497:37Waning Gibbous17Mon
18Tue7:033.78:482.61:221.72:26-0.14:497:37Waning Gibbous18Tue
19Wed7:503.39:312.62:181.63:080.04:497:38Waning Gibbous19Wed
20Thu8:412.810:122.63:191.43:480.14:497:38Third Quarter20Thu
21Fri9:382.410:522.74:221.24:290.34:507:38Third Quarter21Fri
22Sat10:412.111:322.95:251.05:090.64:507:38Third Quarter22Sat
23Sun11:491.96:260.85:500.94:507:38Third Quarter23Sun
24Mon12:123.112:591.97:210.66:311.24:507:38Third Quarter24Mon
25Tue12:543.42:082.08:130.47:131.44:517:39Waning Crescent25Tue
26Wed1:363.73:092.29:020.37:551.74:517:39Waning Crescent26Wed
27Thu2:193.94:032.39:490.18:381.84:517:39Waning Crescent27Thu
28Fri3:024.24:512.510:360.09:241.94:527:39New Moon28Fri
29Sat3:454.35:372.611:21-0.110:142.04:527:39New Moon29Sat
30Sun4:284.46:212.712:05-0.24:537:39New Moon30Sun
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