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

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 8:26 pm (1.8 ft)
Next high tide : in 4h 19m at 3:34 pm (2.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waxing Gibbous (80% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:412.21:023.37:131.38:16-0.15:506:28Waning Crescent1Wed
2Thu2:302.52:133.28:200.99:03-0.15:496:29Waning Crescent2Thu
3Fri3:132.83:163.19:200.59:470.05:476:30Waning Crescent3Fri
4Sat3:533.14:153.010:160.110:290.25:466:31New Moon4Sat
5Sun4:323.45:102.911:09-0.211:100.55:446:32New Moon5Sun
6Mon5:103.76:022.812:00-0.45:436:32New Moon6Mon
7Tue5:493.86:542.612:49-0.45:416:33New Moon7Tue
8Wed6:283.97:462.512:301.01:37-0.35:406:34Waxing Crescent8Wed
9Thu7:083.88:392.41:091.32:27-0.25:386:35Waxing Crescent9Thu
10Fri7:513.79:332.31:501.53:180.05:376:36Waxing Crescent10Fri
11Sat8:393.510:292.12:361.64:130.15:356:37First Quarter11Sat
12Sun9:323.211:272.03:341.75:110.25:346:38First Quarter12Sun
13Mon10:323.04:471.66:070.25:326:39First Quarter13Mon
14Tue12:232.011:36 AM2.85:591.56:590.25:316:40First Quarter14Tue
15Wed1:142.012:412.67:031.27:460.25:306:41Waxing Gibbous15Wed
16Thu1:592.21:432.58:000.98:290.25:286:42Waxing Gibbous16Thu
17Fri2:382.42:412.48:520.69:080.35:276:43Waxing Gibbous17Fri
18Sat3:132.63:342.49:400.39:450.55:256:44Waxing Gibbous18Sat
19Sun3:462.94:232.510:250.110:200.75:246:44Full Moon19Sun
20Mon4:183.25:112.511:09-0.110:540.95:236:45Full Moon20Mon
21Tue4:483.45:592.511:53-0.211:251.25:216:46Full Moon21Tue
22Wed5:193.76:472.512:36-0.35:206:47Full Moon22Wed
23Thu5:513.87:382.51:22-0.35:196:48Waning Gibbous23Thu
24Fri6:273.98:322.412:171.62:10-0.35:176:49Waning Gibbous24Fri
25Sat7:103.99:292.312:431.73:03-0.35:166:50Waning Gibbous25Sat
26Sun9:013.711:262.21:211.75:00-0.26:157:51Waning Gibbous26Sun
27Mon10:033.53:311.75:58-0.26:147:52Third Quarter27Mon
28Tue12:232.211:16 AM3.25:361.66:55-0.26:127:53Third Quarter28Tue
29Wed1:162.312:342.97:041.27:47-0.16:117:54Third Quarter29Wed
30Thu2:062.51:522.68:150.88:360.06:107:55Waning Crescent30Thu
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 6:00 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 spring phase. Tonight's moon is 80% 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 Gibbous (80% 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