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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 3h 15m at 8:05 am (0.5 ft)
Next high tide : 1:42 pm (1.9 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:523.27:443.21:41-0.21:590.77:095:28Waxing Crescent1Wed
2Thu8:353.38:452.82:200.03:020.57:085:29Waxing Crescent2Thu
3Fri9:203.59:492.32:590.44:070.47:075:31First Quarter3Fri
4Sat10:063.610:582.13:400.75:130.37:075:32First Quarter4Sat
5Sun10:563.74:251.16:190.37:065:33First Quarter5Sun
6Mon12:111.911:49 AM3.85:201.47:210.37:055:34First Quarter6Mon
7Tue1:281.912:463.86:231.68:180.37:045:35Waxing Gibbous7Tue
8Wed2:432.11:433.97:261.79:110.27:035:36Waxing Gibbous8Wed
9Thu3:392.22:363.98:241.79:580.27:025:37Waxing Gibbous9Thu
10Fri4:192.33:253.99:181.710:410.17:005:38Waxing Gibbous10Fri
11Sat4:542.44:103.810:091.511:210.16:595:39Full Moon11Sat
12Sun5:282.54:523.710:571.411:580.06:585:41Full Moon12Sun
13Mon6:022.65:323.511:441.26:575:42Full Moon13Mon
14Tue6:352.66:123.212:330.012:291.06:565:43Full Moon14Tue
15Wed7:082.76:543.01:060.11:140.96:555:44Waning Gibbous15Wed
16Thu7:402.87:382.71:370.31:590.76:545:45Waning Gibbous16Thu
17Fri8:112.98:262.42:030.52:470.76:525:46Waning Gibbous17Fri
18Sat8:413.09:222.22:220.83:400.66:515:47Waning Gibbous18Sat
19Sun9:133.210:262.12:251.14:400.66:505:48Third Quarter19Sun
20Mon9:533.411:382.02:351.35:450.56:495:49Third Quarter20Mon
21Tue10:443.63:041.56:480.46:475:50Third Quarter21Tue
22Wed12:532.011:45 AM3.73:501.77:480.26:465:51Third Quarter22Wed
23Thu2:032.112:543.95:191.88:430.06:455:52Waning Crescent23Thu
24Fri3:012.22:014.07:421.79:33-0.26:435:53Waning Crescent24Fri
25Sat3:482.43:034.18:531.510:20-0.36:425:54Waning Crescent25Sat
26Sun4:302.64:004.19:561.211:05-0.36:415:56New Moon26Sun
27Mon5:102.94:553.910:560.811:46-0.26:395:57New Moon27Mon
28Tue5:493.15:493.611:540.56:385:58New Moon28Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

Common Questions About Blackslough Landing, San Joaquin River, CA Tides

Show All
What time does the tide turn (slack tide) in Blackslough Landing, San Joaquin River, CA today?

Slack tide in Blackslough Landing, San Joaquin River, CA is approximately 10:53 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 transitional phase. Tonight's moon is 69% 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 shifting between spring and neap.

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 First Quarter (69% illuminated). This places Blackslough Landing, San Joaquin River, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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