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 1h 51m at 3:38 am (1.4 ft)
Next high tide : 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 - Aug 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:384.55:002.910:530.010:221.56:088:15Waning Crescent1Wed
2Thu4:334.65:503.011:44-0.111:211.46:098:14New Moon2Thu
3Fri5:254.66:373.212:32-0.16:108:13New Moon3Fri
4Sat6:174.57:243.312:191.31:18-0.16:118:12New Moon4Sat
5Sun7:084.28:093.41:151.22:030.06:128:11Waxing Crescent5Sun
6Mon7:593.88:553.42:111.12:460.26:138:09Waxing Crescent6Mon
7Tue8:523.49:413.43:071.03:300.46:148:08Waxing Crescent7Tue
8Wed9:473.010:283.44:040.94:140.66:148:07Waxing Crescent8Wed
9Thu10:442.711:153.45:040.95:000.96:158:06First Quarter9Thu
10Fri11:442.46:040.85:501.16:168:05First Quarter10Fri
11Sat12:033.412:472.37:040.76:421.36:178:04First Quarter11Sat
12Sun12:523.41:502.28:010.77:361.46:188:02First Quarter12Sun
13Mon1:433.52:522.38:540.68:291.56:198:01Waxing Gibbous13Mon
14Tue2:343.63:472.49:430.59:191.56:208:00Waxing Gibbous14Tue
15Wed3:233.74:342.610:290.410:081.56:217:59Waxing Gibbous15Wed
16Thu4:093.85:172.711:130.310:551.56:217:57Waxing Gibbous16Thu
17Fri4:533.85:572.811:550.311:411.46:227:56Full Moon17Fri
18Sat5:343.86:362.912:350.26:237:55Full Moon18Sat
19Sun6:153.87:133.012:271.31:130.26:247:54Full Moon19Sun
20Mon6:553.67:503.11:121.21:500.36:257:52Full Moon20Mon
21Tue7:383.48:273.21:571.12:250.46:267:51Waning Gibbous21Tue
22Wed8:243.29:053.32:440.92:590.66:277:49Waning Gibbous22Wed
23Thu9:162.99:463.43:360.83:320.86:287:48Waning Gibbous23Thu
24Fri10:162.710:303.54:340.74:061.06:287:47Third Quarter24Fri
25Sat11:222.511:213.75:370.64:501.26:297:45Third Quarter25Sat
26Sun12:312.46:420.55:551.46:307:44Third Quarter26Sun
27Mon12:193.81:412.47:450.47:101.56:317:42Third Quarter27Mon
28Tue1:213.92:472.58:440.38:181.56:327:41Waning Crescent28Tue
29Wed2:244.03:452.79:380.19:201.46:337:40Waning Crescent29Wed
30Thu3:254.14:372.910:300.110:191.26:347:38Waning Crescent30Thu
31Fri4:224.25:233.111:180.111:151.16:347:37New Moon31Fri
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 6:28 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 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