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

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 39m at 4:25 pm (-0.2 ft)
Next high tide : 10:50 pm (2.9 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:191.912:073.45:461.47:330.57:105:28First Quarter1Wed
2Thu1:252.012:593.56:441.58:250.47:095:29Waxing Gibbous2Thu
3Fri2:262.11:513.67:401.59:130.27:085:30Waxing Gibbous3Fri
4Sat3:182.22:413.88:341.59:580.17:075:31Waxing Gibbous4Sat
5Sun4:042.43:283.89:251.410:400.07:065:32Waxing Gibbous5Sun
6Mon4:452.64:143.910:161.311:21-0.17:055:33Full Moon6Mon
7Tue5:242.84:593.811:071.17:045:35Full Moon7Tue
8Wed6:023.05:463.712:00-0.111:57 AM0.97:035:36Full Moon8Wed
9Thu6:403.16:343.412:370.012:480.77:025:37Waning Gibbous9Thu
10Fri7:193.37:273.11:140.11:420.67:015:38Waning Gibbous10Fri
11Sat8:013.58:242.81:510.42:390.47:005:39Waning Gibbous11Sat
12Sun8:453.69:262.52:270.63:400.46:595:40Waning Gibbous12Sun
13Mon9:353.710:332.33:070.94:450.36:585:41Third Quarter13Mon
14Tue10:293.811:432.23:561.25:520.36:565:42Third Quarter14Tue
15Wed11:283.95:031.46:560.26:555:43Third Quarter15Wed
16Thu12:542.212:313.96:161.57:550.16:545:44Waning Crescent16Thu
17Fri2:012.21:343.97:241.48:490.16:535:46Waning Crescent17Fri
18Sat3:002.42:333.88:261.39:380.06:525:47Waning Crescent18Sat
19Sun3:482.63:273.89:241.210:240.06:505:48Waning Crescent19Sun
20Mon4:302.84:173.710:181.011:060.06:495:49New Moon20Mon
21Tue5:102.95:033.511:090.911:460.16:485:50New Moon21Tue
22Wed5:473.15:483.311:570.76:475:51New Moon22Wed
23Thu6:243.16:323.112:240.212:440.66:455:52New Moon23Thu
24Fri7:013.27:172.91:010.41:300.56:445:53Waxing Crescent24Fri
25Sat7:373.28:042.71:370.62:160.56:435:54Waxing Crescent25Sat
26Sun8:143.28:532.42:110.83:050.56:415:55Waxing Crescent26Sun
27Mon8:533.29:462.22:441.03:580.66:405:56Waxing Crescent27Mon
28Tue9:353.210:442.13:151.24:560.66:385:57First Quarter28Tue
29Wed10:233.211:452.03:461.45:560.56:375:58First Quarter29Wed
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 7:37 pm — 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 28% 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 Waxing Crescent (28% 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