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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 30m at 2:57 am (1.1 ft)
Next high tide : 8:28 am (3.0 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:09 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:433.28:203.01:580.92:220.56:367:34Waxing Crescent1Thu
2Fri8:282.98:543.02:430.82:550.76:377:33Waxing Crescent2Fri
3Sat9:172.79:283.13:300.73:261.06:377:31Waxing Crescent3Sat
4Sun10:102.510:043.14:210.73:521.26:387:30Waxing Crescent4Sun
5Mon11:092.310:433.25:170.74:021.56:397:28First Quarter5Mon
6Tue12:132.26:180.74:121.66:407:27First Quarter6Tue
7Wed1:202.27:180.65:001.86:417:25First Quarter7Wed
8Thu12:273.42:252.38:160.57:281.86:427:24First Quarter8Thu
9Fri1:303.63:222.49:090.38:341.86:437:22Waxing Gibbous9Fri
10Sat2:333.74:112.69:590.29:321.66:437:21Waxing Gibbous10Sat
11Sun3:323.94:542.710:450.010:281.36:447:19Waxing Gibbous11Sun
12Mon4:283.95:343.011:290.011:231.06:457:18Full Moon12Mon
13Tue5:213.96:133.212:120.06:467:16Full Moon13Tue
14Wed6:143.86:523.412:180.712:530.16:477:14Full Moon14Wed
15Thu7:093.57:323.61:130.41:330.36:487:13Waning Gibbous15Thu
16Fri8:053.28:153.82:070.12:130.66:487:11Waning Gibbous16Fri
17Sat9:042.99:003.93:040.02:540.96:497:10Waning Gibbous17Sat
18Sun10:062.79:493.94:020.03:391.26:507:08Waning Gibbous18Sun
19Mon11:112.510:443.85:040.14:311.56:517:07Third Quarter19Mon
20Tue12:182.36:080.15:371.66:527:05Third Quarter20Tue
21Wed1:262.37:110.26:481.76:537:03Third Quarter21Wed
22Thu12:463.62:312.38:110.27:551.66:547:02Waning Crescent22Thu
23Fri1:503.53:262.49:050.28:551.56:547:00Waning Crescent23Fri
24Sat2:503.44:102.69:530.29:491.36:556:59Waning Crescent24Sat
25Sun3:453.44:472.710:370.210:391.06:566:57Waning Crescent25Sun
26Mon4:353.35:222.811:170.311:260.86:576:56New Moon26Mon
27Tue5:213.25:552.911:560.36:586:54New Moon27Tue
28Wed6:043.16:283.012:110.612:320.46:596:53New Moon28Wed
29Thu6:472.96:593.112:550.41:070.67:006:51New Moon29Thu
30Fri7:312.87:293.21:370.31:410.87:016:49Waxing Crescent30Fri
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 5:42 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 spring phase. Tonight's moon is 83% 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 Waning Gibbous (83% 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