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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 2h 58m at 4:26 pm (0.3 ft)
Next high tide : 10:57 pm (2.9 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:003.64:242.410:180.39:541.56:357:35Waxing Gibbous1Sat
2Sun3:543.65:062.611:000.210:421.26:367:34Waxing Gibbous2Sun
3Mon4:423.65:422.811:360.211:361.06:377:32Full Moon3Mon
4Tue5:243.56:123.112:120.26:387:31Full Moon4Tue
5Wed6:123.46:483.312:240.712:480.46:387:29Full Moon5Wed
6Thu7:003.37:183.51:120.51:240.66:397:28Full Moon6Thu
7Fri7:543.17:543.82:000.31:540.96:407:26Waning Gibbous7Fri
8Sat8:482.88:363.92:540.22:241.16:417:25Waning Gibbous8Sat
9Sun9:482.69:244.03:480.22:541.46:427:23Waning Gibbous9Sun
10Mon10:542.410:184.04:540.23:301.66:437:21Third Quarter10Mon
11Tue12:062.36:000.24:241.86:447:20Third Quarter11Tue
12Wed1:122.37:060.26:121.86:447:18Third Quarter12Wed
13Thu12:303.92:182.38:060.27:361.76:457:17Waning Crescent13Thu
14Fri1:363.83:182.59:000.28:421.56:467:15Waning Crescent14Fri
15Sat2:423.74:062.69:480.19:481.26:477:14Waning Crescent15Sat
16Sun3:423.54:422.810:360.210:420.96:487:12Waning Crescent16Sun
17Mon4:423.45:243.111:180.211:360.66:497:11New Moon17Mon
18Tue5:303.36:003.211:540.46:507:09New Moon18Tue
19Wed6:183.16:303.412:240.412:360.56:507:07New Moon19Wed
20Thu7:063.07:063.51:060.31:120.86:517:06New Moon20Thu
21Fri7:482.87:423.51:540.21:481.06:527:04Waxing Crescent21Fri
22Sat8:362.78:123.52:360.32:181.36:537:03Waxing Crescent22Sat
23Sun9:302.58:483.53:240.32:541.56:547:01Waxing Crescent23Sun
24Mon10:242.49:303.44:120.43:181.76:557:00Waxing Crescent24Mon
25Tue11:182.210:183.35:120.53:241.86:566:58First Quarter25Tue
26Wed12:182.16:120.55:061.86:566:56First Quarter26Wed
27Thu1:182.17:060.56:421.76:576:55First Quarter27Thu
28Fri12:243.12:122.18:000.47:481.56:586:53First Quarter28Fri
29Sat1:303.03:002.38:480.38:481.36:596:52Waxing Gibbous29Sat
30Sun2:303.03:422.59:300.29:361.07:006:50Waxing Gibbous30Sun
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 7:41 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 71% 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 Waning Gibbous (71% 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