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

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 4:25 pm (-0.2 ft)
Next high tide : in 1h 30m at 9:18 am (3.5 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 - Sep 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:303.57:003.412:370.71:010.46:367:34Full Moon1Sat
2Sun7:173.37:383.51:250.61:400.66:377:33Waning Gibbous2Sun
3Mon8:033.18:153.52:120.62:180.86:377:31Waning Gibbous3Mon
4Tue8:512.88:543.42:590.52:551.06:387:30Waning Gibbous4Tue
5Wed9:412.69:343.43:480.63:321.36:397:28Waning Gibbous5Wed
6Thu10:352.410:193.34:410.64:111.46:407:27Third Quarter6Thu
7Fri11:322.311:083.35:370.75:001.66:417:25Third Quarter7Fri
8Sat12:312.26:360.66:041.66:427:24Third Quarter8Sat
9Sun12:033.21:312.27:330.67:101.66:427:22Third Quarter9Sun
10Mon1:023.22:282.38:260.58:101.56:437:20Waning Crescent10Mon
11Tue2:013.33:182.49:140.49:041.36:447:19Waning Crescent11Tue
12Wed2:573.34:022.69:580.39:561.16:457:17Waning Crescent12Wed
13Thu3:503.34:422.810:400.310:450.96:467:16Waning Crescent13Thu
14Fri4:413.45:193.111:200.311:340.66:477:14New Moon14Fri
15Sat5:303.45:563.411:580.46:487:13New Moon15Sat
16Sun6:183.36:323.612:230.412:360.66:487:11New Moon16Sun
17Mon7:083.27:103.81:120.21:130.86:497:10Waxing Crescent17Mon
18Tue8:013.17:514.02:020.11:511.06:507:08Waxing Crescent18Tue
19Wed8:572.98:374.02:550.02:301.26:517:06Waxing Crescent19Wed
20Thu9:562.79:294.03:510.03:151.46:527:05Waxing Crescent20Thu
21Fri10:582.510:283.94:520.14:131.56:537:03First Quarter21Fri
22Sat12:022.45:550.15:291.56:547:02First Quarter22Sat
23Sun1:052.46:570.26:461.56:547:00First Quarter23Sun
24Mon12:403.52:062.57:560.27:551.36:556:59Waxing Gibbous24Mon
25Tue1:483.33:002.68:490.28:571.06:566:57Waxing Gibbous25Tue
26Wed2:523.23:472.89:370.29:540.86:576:55Waxing Gibbous26Wed
27Thu3:513.14:293.010:220.310:460.56:586:54Waxing Gibbous27Thu
28Fri4:443.15:083.211:050.411:350.36:596:52Full Moon28Fri
29Sat5:323.05:453.411:450.67:006:51Full Moon29Sat
30Sun6:183.06:203.512:210.212:250.77:016:49Full Moon30Sun
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 12:51 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