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

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 09m at 2:22 am (1.3 ft)
Next high tide : 8:08 am (3.8 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jun 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:513.59:502.62:171.63:28-0.25:448:22Waxing Crescent1Tue
2Wed8:363.310:362.63:091.54:10-0.25:448:23Waxing Crescent2Wed
3Thu9:303.011:212.74:141.44:54-0.15:438:23First Quarter3Thu
4Fri10:362.75:261.25:410.15:438:24First Quarter4Fri
5Sat12:072.911:52 AM2.56:370.96:290.35:438:25First Quarter5Sat
6Sun12:543.21:102.37:420.67:200.65:438:25First Quarter6Sun
7Mon1:423.52:242.38:420.38:110.85:428:26Waxing Gibbous7Mon
8Tue2:313.83:342.39:380.09:021.05:428:26Waxing Gibbous8Tue
9Wed3:214.14:362.510:32-0.29:551.25:428:27Waxing Gibbous9Wed
10Thu4:114.45:322.611:24-0.410:491.45:428:27Full Moon10Thu
11Fri5:004.56:252.812:15-0.45:428:28Full Moon11Fri
12Sat5:484.57:152.81:04-0.45:428:28Full Moon12Sat
13Sun6:354.48:042.912:391.51:51-0.45:428:29Full Moon13Sun
14Mon7:234.18:522.91:341.52:37-0.35:428:29Waning Gibbous14Mon
15Tue8:123.89:402.92:301.43:21-0.25:428:29Waning Gibbous15Tue
16Wed9:033.310:272.93:271.44:060.05:428:30Waning Gibbous16Wed
17Thu9:572.911:132.94:271.34:510.25:428:30Third Quarter17Thu
18Fri10:542.511:572.95:291.15:360.45:428:30Third Quarter18Fri
19Sat11:552.36:320.96:230.65:428:31Third Quarter19Sat
20Sun12:423.012:582.17:310.87:090.85:438:31Third Quarter20Sun
21Mon1:263.22:042.08:260.67:561.05:438:31Waning Crescent21Mon
22Tue2:113.33:062.19:170.48:411.25:438:31Waning Crescent22Tue
23Wed2:553.54:042.210:050.39:271.45:438:32Waning Crescent23Wed
24Thu3:383.84:552.310:510.210:111.55:448:32Waning Crescent24Thu
25Fri4:193.95:422.511:350.110:571.65:448:32New Moon25Fri
26Sat4:594.06:262.612:190.05:448:32New Moon26Sat
27Sun5:384.17:092.71:00-0.15:458:32New Moon27Sun
28Mon6:174.07:522.812:281.71:41-0.25:458:32New Moon28Mon
29Tue6:573.98:352.81:161.62:21-0.25:458:32Waxing Crescent29Tue
30Wed7:403.79:182.92:061.53:01-0.15:468:32Waxing Crescent30Wed
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 5:15 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 8% 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 Crescent (8% 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