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 2h 59m 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 - Apr 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:082.21:402.88:011.28:500.16:497:29Waxing Gibbous1Sun
2Mon2:572.42:462.89:000.99:360.26:477:30Waxing Gibbous2Mon
3Tue3:412.63:472.99:540.610:190.26:467:30Waxing Gibbous3Tue
4Wed4:223.04:443.010:470.311:010.46:447:31Waxing Gibbous4Wed
5Thu5:013.35:393.011:380.011:430.56:437:32Full Moon5Thu
6Fri5:413.76:323.012:30-0.36:427:33Full Moon6Fri
7Sat6:223.97:252.912:250.71:21-0.46:407:34Full Moon7Sat
8Sun7:054.18:202.81:080.92:13-0.56:397:35Waning Gibbous8Sun
9Mon7:524.19:162.71:521.13:06-0.46:377:36Waning Gibbous9Mon
10Tue8:424.010:142.52:411.24:01-0.36:367:37Waning Gibbous10Tue
11Wed9:383.811:122.43:371.34:59-0.26:347:38Third Quarter11Wed
12Thu10:393.54:441.35:58-0.16:337:39Third Quarter12Thu
13Fri12:112.411:44 AM3.25:571.36:560.06:317:40Third Quarter13Fri
14Sat1:092.412:512.97:081.17:500.16:307:41Third Quarter14Sat
15Sun2:042.51:572.68:130.98:400.26:297:42Waning Crescent15Sun
16Mon2:532.63:012.59:110.69:260.36:277:42Waning Crescent16Mon
17Tue3:372.83:582.510:030.410:100.46:267:43Waning Crescent17Tue
18Wed4:173.04:502.510:520.210:510.66:247:44Waning Crescent18Wed
19Thu4:543.25:372.511:370.011:310.86:237:45New Moon19Thu
20Fri5:293.36:222.512:20-0.16:227:46New Moon20Fri
21Sat6:043.57:052.612:110.91:02-0.16:207:47New Moon21Sat
22Sun6:373.57:492.512:491.11:44-0.16:197:48New Moon22Sun
23Mon7:103.58:342.51:261.32:26-0.16:187:49Waxing Crescent23Mon
24Tue7:433.49:212.42:011.43:09-0.16:167:50Waxing Crescent24Tue
25Wed8:173.310:102.32:331.53:540.06:157:51Waxing Crescent25Wed
26Thu8:553.211:002.23:061.54:410.06:147:52Waxing Crescent26Thu
27Fri9:423.011:502.23:561.55:310.06:137:53First Quarter27Fri
28Sat10:402.75:211.46:220.16:117:54First Quarter28Sat
29Sun12:392.211:50 AM2.66:381.27:120.16:107:55First Quarter29Sun
30Mon1:262.41:072.47:440.98:000.26:097:55First Quarter30Mon
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