37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

66°
H -°
L 61°
WNW
5mph
High tide
4:41 am

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

TIDE TIMES for Wednesday, August 26, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 11:47 am (0.2 ft)
Next high tide : in 48m at 4:41 am (3.7 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 6:30 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - May 1916

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:173.75:262.411:19-0.310:541.15:096:56New Moon1Mon
2Tue4:533.86:122.512:03-0.35:086:57New Moon2Tue
3Wed5:293.86:582.512:46-0.35:066:57New Moon3Wed
4Thu6:053.87:442.412:151.51:29-0.25:056:58Waxing Crescent4Thu
5Fri6:423.78:312.312:541.62:14-0.15:046:59Waxing Crescent5Fri
6Sat7:203.59:202.21:341.63:000.05:037:00Waxing Crescent6Sat
7Sun8:033.210:092.12:211.63:480.05:027:01Waxing Crescent7Sun
8Mon8:522.910:582.13:231.64:370.05:017:02First Quarter8Mon
9Tue9:502.611:442.24:371.45:260.15:007:03First Quarter9Tue
10Wed10:572.35:481.26:120.24:597:04First Quarter10Wed
11Thu12:282.312:092.26:500.96:550.34:587:05First Quarter11Thu
12Fri1:092.51:202.17:460.67:360.54:577:06Waxing Gibbous12Fri
13Sat1:482.92:262.18:370.38:150.74:567:07Waxing Gibbous13Sat
14Sun2:263.23:262.39:260.08:531.04:557:07Waxing Gibbous14Sun
15Mon3:043.64:222.410:14-0.39:321.34:547:08Waxing Gibbous15Mon
16Tue3:434.05:152.511:03-0.510:131.54:547:09Full Moon16Tue
17Wed4:244.36:072.611:52-0.610:581.64:537:10Full Moon17Wed
18Thu5:084.46:592.612:42-0.64:527:11Full Moon18Thu
19Fri5:544.47:522.61:32-0.64:517:12Waning Gibbous19Fri
20Sat6:464.28:462.612:441.72:23-0.64:517:13Waning Gibbous20Sat
21Sun7:423.99:392.61:491.63:14-0.54:507:13Waning Gibbous21Sun
22Mon8:443.510:312.63:021.54:06-0.34:497:14Third Quarter22Mon
23Tue9:523.011:212.74:191.24:57-0.14:497:15Third Quarter23Tue
24Wed11:022.55:340.95:470.14:487:16Third Quarter24Wed
25Thu12:092.912:152.26:430.66:350.34:477:17Third Quarter25Thu
26Fri12:553.11:272.07:440.37:210.64:477:17Waning Crescent26Fri
27Sat1:403.42:352.08:390.08:060.94:467:18Waning Crescent27Sat
28Sun2:233.63:352.19:29-0.18:511.14:467:19Waning Crescent28Sun
29Mon3:043.84:272.210:16-0.29:351.44:457:20Waning Crescent29Mon
30Tue3:443.95:142.411:00-0.210:191.64:457:20New Moon30Tue
31Wed4:234.05:582.511:43-0.211:031.74:447:21New Moon31Wed
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 98% 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 (98% 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