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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 1h 56m at 4:26 pm (0.3 ft)
Next high tide : 10:57 pm (2.9 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Aug 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:473.73:262.29:180.68:231.96:088:15Waxing Gibbous1Wed
2Thu2:393.94:202.310:070.59:161.96:098:14Waxing Gibbous2Thu
3Fri3:284.05:052.510:530.310:071.86:108:13Waxing Gibbous3Fri
4Sat4:154.05:452.611:350.210:571.76:118:12Full Moon4Sat
5Sun4:594.06:222.712:160.16:128:11Full Moon5Sun
6Mon5:414.06:592.812:540.16:138:10Full Moon6Mon
7Tue6:233.87:343.012:361.41:290.16:138:08Full Moon7Tue
8Wed7:073.68:093.11:251.22:030.26:148:07Waning Gibbous8Wed
9Thu7:553.38:453.32:161.02:350.46:158:06Waning Gibbous9Thu
10Fri8:493.09:223.53:090.83:050.76:168:05Waning Gibbous10Fri
11Sat9:492.710:033.74:080.73:321.06:178:04Waning Gibbous11Sat
12Sun10:562.510:503.95:120.63:571.36:188:03Third Quarter12Sun
13Mon12:082.36:190.54:271.66:198:01Third Quarter13Mon
14Tue1:232.27:250.45:321.86:198:00Third Quarter14Tue
15Wed12:454.22:362.38:280.37:211.96:207:59Waning Crescent15Wed
16Thu1:504.33:402.49:250.28:371.86:217:58Waning Crescent16Thu
17Fri2:544.34:332.610:180.19:431.76:227:56Waning Crescent17Fri
18Sat3:534.35:182.811:070.110:431.56:237:55New Moon18Sat
19Sun4:484.25:582.911:510.111:401.26:247:54New Moon19Sun
20Mon5:394.06:373.112:330.16:257:52New Moon20Mon
21Tue6:273.77:153.212:341.01:120.26:267:51New Moon21Tue
22Wed7:153.47:523.31:260.81:500.46:267:50Waxing Crescent22Wed
23Thu8:033.18:303.42:160.72:260.66:277:48Waxing Crescent23Thu
24Fri8:532.89:073.43:050.63:020.96:287:47Waxing Crescent24Fri
25Sat9:462.69:473.43:560.63:361.26:297:45Waxing Crescent25Sat
26Sun10:412.410:293.44:500.74:111.46:307:44First Quarter26Sun
27Mon11:412.211:163.55:490.74:481.76:317:43First Quarter27Mon
28Tue12:442.26:490.75:481.86:327:41First Quarter28Tue
29Wed12:093.51:502.17:480.77:001.86:327:40First Quarter29Wed
30Thu1:073.52:512.28:430.68:041.86:337:38Waxing Gibbous30Thu
31Fri2:053.53:432.39:320.49:011.76:347:37Waxing Gibbous31Fri
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 7:41 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 71% 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 Waning Gibbous (71% 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