37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

55°
H 73°
L 46°
WSW
4mph
Low tide
11:55 am

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

TIDE TIMES for Monday, October 26, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 3h 06m at 11:55 am (1.2 ft)
Next high tide : 5:59 pm (4.1 ft)
Sunset today : 6:13 pm
Sunrise tomorrow : 7:25 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jul 1798

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:493.88:392.61:091.82:180.04:537:38Waning Gibbous1Sun
2Mon7:323.49:212.62:011.72:590.14:537:38Waning Gibbous2Mon
3Tue8:193.110:032.62:581.63:390.24:547:38Waning Gibbous3Tue
4Wed9:132.710:432.74:011.44:190.34:547:38Third Quarter4Wed
5Thu10:142.411:222.85:051.24:590.64:557:38Third Quarter5Thu
6Fri11:222.16:071.05:390.84:567:38Third Quarter6Fri
7Sat12:023.112:342.17:040.76:191.14:567:37Third Quarter7Sat
8Sun12:423.31:442.17:570.56:591.44:577:37Waning Crescent8Sun
9Mon1:243.72:492.28:470.37:401.64:577:37Waning Crescent9Mon
10Tue2:074.03:472.49:360.28:241.84:587:36Waning Crescent10Tue
11Wed2:524.34:382.610:240.09:131.94:597:36Waning Crescent11Wed
12Thu3:374.55:262.711:12-0.110:062.04:597:36New Moon12Thu
13Fri4:244.66:132.811:58-0.211:041.95:007:35New Moon13Fri
14Sat5:114.66:592.912:44-0.35:017:35New Moon14Sat
15Sun6:014.47:452.912:041.81:29-0.35:027:34Waxing Crescent15Sun
16Mon6:544.18:313.01:071.62:13-0.25:027:34Waxing Crescent16Mon
17Tue7:523.69:173.12:121.42:560.05:037:33Waxing Crescent17Tue
18Wed8:563.210:033.33:211.13:400.25:047:32First Quarter18Wed
19Thu10:042.710:503.54:310.94:250.55:047:32First Quarter19Thu
20Fri11:152.411:383.75:400.65:130.95:057:31First Quarter20Fri
21Sat12:292.26:450.46:041.25:067:30First Quarter21Sat
22Sun12:283.91:432.27:450.36:571.55:077:30Waxing Gibbous22Sun
23Mon1:194.12:532.38:410.27:511.75:087:29Waxing Gibbous23Mon
24Tue2:104.23:502.49:320.28:441.85:087:28Waxing Gibbous24Tue
25Wed2:594.34:382.610:200.29:361.95:097:27Full Moon25Wed
26Thu3:464.45:192.711:050.110:271.95:107:27Full Moon26Thu
27Fri4:294.35:592.811:480.111:161.85:117:26Full Moon27Fri
28Sat5:114.26:382.812:280.15:127:25Full Moon28Sat
29Sun5:524.07:162.812:041.71:070.15:137:24Waning Gibbous29Sun
30Mon6:323.77:552.812:511.61:440.25:137:23Waning Gibbous30Mon
31Tue7:143.38:332.81:401.42:200.35:147:22Waning Gibbous31Tue
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 99% 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 (99% 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