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

TIDE TIMES for Thursday, June 18, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 32m at 2:30 am (1.6 ft)
Next high tide : 8:19 am (4.0 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:022.53:343.99:301.410:380.17:095:28Waxing Gibbous1Sun
2Mon4:442.64:183.810:191.311:190.17:095:29Full Moon2Mon
3Tue5:232.75:003.711:071.311:590.17:085:30Full Moon3Tue
4Wed6:012.85:403.611:531.27:075:31Full Moon4Wed
5Thu6:392.86:203.412:370.112:371.17:065:33Full Moon5Thu
6Fri7:172.97:013.11:140.21:221.07:055:34Waning Gibbous6Fri
7Sat7:542.97:432.91:490.32:080.97:045:35Waning Gibbous7Sat
8Sun8:312.98:292.62:230.42:570.97:035:36Waning Gibbous8Sun
9Mon9:093.09:212.42:550.63:520.87:025:37Waning Gibbous9Mon
10Tue9:483.110:212.23:230.84:510.77:015:38Third Quarter10Tue
11Wed10:313.211:282.13:461.15:520.67:005:39Third Quarter11Wed
12Thu11:203.34:191.26:510.56:585:40Third Quarter12Thu
13Fri12:372.112:163.55:451.47:470.36:575:41Third Quarter13Fri
14Sat1:432.21:153.77:011.48:390.16:565:43Waning Crescent14Sat
15Sun2:422.42:133.98:041.49:290.06:555:44Waning Crescent15Sun
16Mon3:342.63:094.09:041.310:17-0.16:545:45Waning Crescent16Mon
17Tue4:212.84:034.110:011.111:03-0.26:535:46New Moon17Tue
18Wed5:063.14:564.110:580.911:48-0.26:515:47New Moon18Wed
19Thu5:503.35:483.911:540.76:505:48New Moon19Thu
20Fri6:343.56:413.612:31-0.112:490.56:495:49Waxing Crescent20Fri
21Sat7:193.67:363.31:140.11:450.36:475:50Waxing Crescent21Sat
22Sun8:053.78:343.01:580.32:420.36:465:51Waxing Crescent22Sun
23Mon8:543.79:332.62:430.63:420.36:455:52Waxing Crescent23Mon
24Tue9:453.610:362.43:320.84:450.36:445:53First Quarter24Tue
25Wed10:393.611:402.24:271.05:480.36:425:54First Quarter25Wed
26Thu11:363.55:271.26:490.36:415:55First Quarter26Thu
27Fri12:462.212:343.46:291.37:450.36:395:56Waxing Gibbous27Fri
28Sat1:502.21:323.47:281.38:360.36:385:57Waxing Gibbous28Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

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

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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 5:24 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 spring phase. Tonight's moon is 10% 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 Waxing Crescent (10% 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