37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

85°
H 87°
L 56°
WSW
8mph
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 1h 37m 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 - May 1875

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:592.51:572.58:160.68:270.25:167:03Waning Crescent1Sat
2Sun2:382.93:032.59:100.29:070.45:157:04Waning Crescent2Sun
3Mon3:153.34:042.610:03-0.29:470.75:147:04Waning Crescent3Mon
4Tue3:533.75:022.610:55-0.510:271.05:127:05New Moon4Tue
5Wed4:334.15:582.611:46-0.711:091.35:117:06New Moon5Wed
6Thu5:154.46:542.612:38-0.85:107:07New Moon6Thu
7Fri5:594.47:502.61:30-0.75:097:08Waxing Crescent7Fri
8Sat6:484.38:482.512:421.62:24-0.65:087:09Waxing Crescent8Sat
9Sun7:424.19:462.41:381.73:19-0.45:077:10Waxing Crescent9Sun
10Mon8:413.710:432.42:451.74:15-0.25:067:11First Quarter10Mon
11Tue9:453.311:382.44:021.65:11-0.15:057:12First Quarter11Tue
12Wed10:522.95:201.46:040.05:047:13First Quarter12Wed
13Thu12:292.412:012.56:311.16:530.15:037:13First Quarter13Thu
14Fri1:152.61:102.27:340.77:380.35:027:14Waxing Gibbous14Fri
15Sat1:562.72:142.18:290.48:190.55:027:15Waxing Gibbous15Sat
16Sun2:343.03:132.19:180.18:590.75:017:16Waxing Gibbous16Sun
17Mon3:093.24:062.210:030.09:381.05:007:17Waxing Gibbous17Mon
18Tue3:433.44:542.310:47-0.210:161.24:597:18Full Moon18Tue
19Wed4:163.65:402.411:29-0.210:541.54:587:19Full Moon19Wed
20Thu4:493.76:242.412:10-0.24:587:19Full Moon20Thu
21Fri5:213.87:102.512:52-0.24:577:20Full Moon21Fri
22Sat5:523.87:572.412:021.81:35-0.14:567:21Waning Gibbous22Sat
23Sun6:253.78:462.312:281.92:18-0.14:567:22Waning Gibbous23Sun
24Mon7:023.59:342.312:481.93:03-0.14:557:23Waning Gibbous24Mon
25Tue7:453.310:222.21:261.83:49-0.14:547:24Waning Gibbous25Tue
26Wed8:373.011:072.32:531.74:36-0.14:547:24Third Quarter26Wed
27Thu9:412.711:502.44:401.55:220.04:537:25Third Quarter27Thu
28Fri10:592.45:571.26:060.14:537:26Third Quarter28Fri
29Sat12:302.712:222.27:020.86:490.34:527:27Third Quarter29Sat
30Sun1:113.01:412.28:000.37:310.64:527:27Waning Crescent30Sun
31Mon1:523.52:522.38:55-0.18:131.04:517:28Waning Crescent31Mon
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