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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 11m at 7:26 pm (0.9 ft)
Next high tide (tomorrow) : 1:49 am (3.4 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - May 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:502.311:52 AM3.16:181.57:20-0.26:087:56Third Quarter1Sun
2Mon1:432.41:092.87:361.28:12-0.16:077:57Third Quarter2Mon
3Tue2:322.62:232.68:430.78:590.16:067:58Waning Crescent3Tue
4Wed3:162.93:322.49:430.39:430.36:057:59Waning Crescent4Wed
5Thu3:573.24:342.410:370.010:260.56:048:00Waning Crescent5Thu
6Fri4:363.55:302.411:27-0.311:070.86:038:01New Moon6Fri
7Sat5:133.76:212.412:15-0.46:028:02New Moon7Sat
8Sun5:503.97:102.51:00-0.46:018:03New Moon8Sun
9Mon6:263.97:592.512:291.31:44-0.46:008:03New Moon9Mon
10Tue7:023.98:472.41:091.52:29-0.35:598:04Waxing Crescent10Tue
11Wed7:393.89:362.41:491.73:14-0.15:588:05Waxing Crescent11Wed
12Thu8:183.610:262.32:301.84:010.05:578:06Waxing Crescent12Thu
13Fri9:023.311:172.23:171.84:510.05:568:07Waxing Crescent13Fri
14Sat9:513.04:201.75:410.15:558:08First Quarter14Sat
15Sun12:062.110:50 AM2.75:361.66:310.15:548:09First Quarter15Sun
16Mon12:542.111:56 AM2.46:481.37:180.15:538:10First Quarter16Mon
17Tue1:382.31:072.27:511.08:020.25:538:11First Quarter17Tue
18Wed2:182.52:172.18:470.78:420.45:528:11Waxing Gibbous18Wed
19Thu2:562.73:222.19:380.49:200.65:518:12Waxing Gibbous19Thu
20Fri3:313.14:222.210:260.19:560.95:508:13Waxing Gibbous20Fri
21Sat4:063.55:182.311:13-0.210:311.25:508:14Waxing Gibbous21Sat
22Sun4:413.86:112.511:59-0.411:071.55:498:15Full Moon22Sun
23Mon5:184.17:032.612:47-0.55:488:16Full Moon23Mon
24Tue5:584.47:552.61:35-0.55:488:16Full Moon24Tue
25Wed6:414.48:492.612:261.82:25-0.65:478:17Waning Gibbous25Wed
26Thu7:284.39:432.51:161.83:15-0.55:478:18Waning Gibbous26Thu
27Fri8:224.110:372.52:181.84:07-0.55:468:19Waning Gibbous27Fri
28Sat9:223.711:292.53:341.75:00-0.45:468:19Waning Gibbous28Sat
29Sun10:303.24:581.55:52-0.25:458:20Third Quarter29Sun
30Mon12:192.611:43 AM2.86:181.26:430.05:458:21Third Quarter30Mon
31Tue1:072.812:572.47:300.87:310.25:448:21Third Quarter31Tue
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 10:37 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 69% 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 First Quarter (69% 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