37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

74°
H -°
L 58°
WNW
8mph
Low tide
1:05 am

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

TIDE TIMES for Friday, August 28, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : in 5h 52m at 1:05 am (0.9 ft)
Next high tide (tomorrow) : 6:51 am (3.3 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 6:32 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jul 1912

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:504.07:412.612:011.91:240.04:467:32Waning Gibbous1Mon
2Tue6:283.88:232.512:471.92:030.04:467:32Waning Gibbous2Tue
3Wed7:063.49:032.51:361.72:410.04:477:31Waning Gibbous3Wed
4Thu7:493.19:422.62:311.63:170.14:477:31Waning Gibbous4Thu
5Fri8:392.710:192.73:321.43:510.34:487:31Third Quarter5Fri
6Sat9:392.410:552.94:381.24:230.54:497:31Third Quarter6Sat
7Sun10:512.211:323.25:421.04:520.84:497:31Third Quarter7Sun
8Mon12:092.16:420.75:191.24:507:30Third Quarter8Mon
9Tue12:123.51:272.17:380.55:551.54:507:30Waning Crescent9Tue
10Wed12:563.92:382.28:320.26:461.74:517:30Waning Crescent10Wed
11Thu1:454.33:402.49:250.07:481.94:527:29Waning Crescent11Thu
12Fri2:374.64:342.610:17-0.18:532.04:527:29Waning Crescent12Fri
13Sat3:304.85:242.711:07-0.310:002.04:537:28New Moon13Sat
14Sun4:224.96:122.811:57-0.411:061.84:547:28New Moon14Sun
15Mon5:154.86:582.912:44-0.44:547:28New Moon15Mon
16Tue6:094.57:443.012:121.71:29-0.34:557:27Waxing Crescent16Tue
17Wed7:054.08:303.11:161.42:13-0.24:567:26Waxing Crescent17Wed
18Thu8:033.59:153.22:221.22:550.04:577:26Waxing Crescent18Thu
19Fri9:063.010:013.43:291.03:380.34:577:25First Quarter19Fri
20Sat10:112.510:473.54:370.84:220.74:587:25First Quarter20Sat
21Sun11:212.211:343.75:440.65:081.04:597:24First Quarter21Sun
22Mon12:332.16:460.55:581.35:007:23First Quarter22Mon
23Tue12:223.81:472.17:440.46:501.65:007:22Waxing Gibbous23Tue
24Wed1:123.92:562.28:370.37:431.85:017:22Waxing Gibbous24Wed
25Thu2:014.13:502.49:260.38:341.95:027:21Waxing Gibbous25Thu
26Fri2:494.24:322.510:130.39:242.05:037:20Waxing Gibbous26Fri
27Sat3:344.25:112.610:560.310:131.95:047:19Full Moon27Sat
28Sun4:164.25:482.611:370.211:001.85:057:18Full Moon28Sun
29Mon4:564.16:252.712:170.15:057:18Full Moon29Mon
30Tue5:353.97:022.712:540.15:067:17Full Moon30Tue
31Wed6:143.67:382.712:341.61:290.15:077:16Waning Gibbous31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

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

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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 100% 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 Full Moon (100% 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