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

TIDE TIMES for Thursday, June 18, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 3:39 pm (-0.3 ft)
Next high tide : in 4h 24m at 8:19 am (4.0 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:302.411:073.55:410.74:081.46:357:35First Quarter1Mon
2Tue12:362.36:430.65:191.56:367:33First Quarter2Tue
3Wed12:073.61:412.47:430.47:051.66:377:32First Quarter3Wed
4Thu1:123.72:422.58:400.38:171.56:387:30Waxing Gibbous4Thu
5Fri2:193.83:372.79:320.29:201.36:397:29Waxing Gibbous5Fri
6Sat3:213.94:263.010:210.110:191.06:407:27Waxing Gibbous6Sat
7Sun4:203.95:113.311:090.111:160.76:407:26Full Moon7Sun
8Mon5:163.95:553.511:540.26:417:24Full Moon8Mon
9Tue6:093.86:383.712:110.512:390.36:427:23Full Moon9Tue
10Wed7:023.67:223.91:050.31:220.56:437:21Waning Gibbous10Wed
11Thu7:553.48:073.91:590.22:060.76:447:20Waning Gibbous11Thu
12Fri8:503.18:533.92:520.22:510.96:457:18Waning Gibbous12Fri
13Sat9:462.89:423.73:470.23:381.16:457:17Waning Gibbous13Sat
14Sun10:442.610:343.64:440.34:301.36:467:15Third Quarter14Sun
15Mon11:432.411:293.45:430.45:291.46:477:13Third Quarter15Mon
16Tue12:442.36:420.56:321.56:487:12Third Quarter16Tue
17Wed12:273.31:432.37:390.57:331.46:497:10Third Quarter17Wed
18Thu1:253.22:382.48:310.48:301.36:507:09Waning Crescent18Thu
19Fri2:233.13:262.59:190.49:221.16:517:07Waning Crescent19Fri
20Sat3:173.14:082.610:040.410:110.96:517:06Waning Crescent20Sat
21Sun4:073.14:472.810:450.410:580.86:527:04Waning Crescent21Sun
22Mon4:533.15:233.011:250.411:430.66:537:02New Moon22Mon
23Tue5:373.15:583.212:030.56:547:01New Moon23Tue
24Wed6:203.16:313.312:260.512:390.76:556:59New Moon24Wed
25Thu7:023.07:043.41:090.41:140.86:566:58New Moon25Thu
26Fri7:462.97:363.41:520.31:471.06:576:56Waxing Crescent26Fri
27Sat8:332.88:093.52:360.32:161.26:586:55Waxing Crescent27Sat
28Sun9:242.68:473.53:220.32:411.36:586:53Waxing Crescent28Sun
29Mon10:202.59:333.54:140.33:091.46:596:52Waxing Crescent29Mon
30Tue11:192.410:303.45:110.34:011.57:006:50First Quarter30Tue
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 11:59 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 19% 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 (19% 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