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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 9:17 pm (1.9 ft)
Next high tide : in 4h 14m at 4:29 pm (2.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jun 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:503.211:222.32:521.84:50-0.15:448:22Waxing Crescent1Sat
2Sun9:442.94:251.65:34-0.15:448:23First Quarter2Sun
3Mon12:052.410:50 AM2.65:531.46:180.05:438:23First Quarter3Mon
4Tue12:462.612:092.37:051.17:000.25:438:24First Quarter4Tue
5Wed1:262.91:322.28:080.67:420.55:438:25First Quarter5Wed
6Thu2:063.22:502.29:060.28:240.85:438:25Waxing Gibbous6Thu
7Fri2:493.74:012.310:00-0.19:071.25:428:26Waxing Gibbous7Fri
8Sat3:334.15:052.410:54-0.49:531.55:428:26Waxing Gibbous8Sat
9Sun4:194.56:022.511:46-0.510:441.75:428:27Full Moon9Sun
10Mon5:064.86:572.612:38-0.65:428:27Full Moon10Mon
11Tue5:554.87:492.71:29-0.65:428:28Full Moon11Tue
12Wed6:454.78:422.712:371.92:20-0.55:428:28Waning Gibbous12Wed
13Thu7:374.49:332.71:381.83:09-0.45:428:29Waning Gibbous13Thu
14Fri8:324.010:242.72:421.73:57-0.35:428:29Waning Gibbous14Fri
15Sat9:293.511:122.73:501.64:45-0.15:428:29Waning Gibbous15Sat
16Sun10:292.911:582.85:001.45:310.05:428:30Third Quarter16Sun
17Mon11:332.56:101.16:170.35:428:30Third Quarter17Mon
18Tue12:422.912:402.17:160.87:010.55:428:30Third Quarter18Tue
19Wed1:243.01:501.98:160.67:450.85:428:31Waning Crescent19Wed
20Thu2:053.22:591.99:090.48:281.15:438:31Waning Crescent20Thu
21Fri2:463.44:022.09:570.29:101.45:438:31Waning Crescent21Fri
22Sat3:263.74:562.210:430.19:531.65:438:31Waning Crescent22Sat
23Sun4:063.95:442.411:280.110:351.85:438:32Waning Crescent23Sun
24Mon4:454.16:282.512:120.15:448:32New Moon24Mon
25Tue5:234.27:112.612:540.05:448:32New Moon25Tue
26Wed5:594.27:542.612:002.01:360.05:448:32New Moon26Wed
27Thu6:354.18:372.612:422.02:17-0.15:458:32New Moon27Thu
28Fri7:123.99:202.51:261.92:56-0.15:458:32Waxing Crescent28Fri
29Sat7:523.610:012.62:151.83:34-0.15:458:32Waxing Crescent29Sat
30Sun8:383.310:412.63:131.64:110.05:468:32Waxing Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

Common Questions About Blackslough Landing, San Joaquin River, CA Tides

Show All
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 6:53 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 87% 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 (87% 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