37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

66°
H -°
L 52°
W
12mph
High tide
11:56 pm

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

TIDE TIMES for Saturday, September 5, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 7:48 am (0.3 ft)
Next high tide (tomorrow) : in 2h 39m at 11:56 pm (4.0 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 6:38 am
Moon phase : Third Quarter (45% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jul 1890

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:374.65:212.711:07-0.310:071.84:467:32Full Moon1Tue
2Wed4:254.86:112.811:57-0.411:051.84:477:31Full Moon2Wed
3Thu5:144.87:022.912:45-0.54:477:31Full Moon3Thu
4Fri6:054.67:512.912:061.81:33-0.44:487:31Waning Gibbous4Fri
5Sat7:004.38:413.01:091.72:21-0.34:487:31Waning Gibbous5Sat
6Sun7:583.89:303.12:151.53:08-0.24:497:31Waning Gibbous6Sun
7Mon9:003.310:193.23:251.33:550.14:497:30Third Quarter7Mon
8Tue10:062.811:073.34:351.14:430.34:507:30Third Quarter8Tue
9Wed11:152.411:543.55:450.85:310.64:517:30Third Quarter9Wed
10Thu12:262.26:490.66:200.94:517:30Third Quarter10Thu
11Fri12:423.61:372.17:470.47:091.24:527:29Waning Crescent11Fri
12Sat1:293.82:442.28:410.37:581.44:527:29Waning Crescent12Sat
13Sun2:154.03:422.39:300.28:461.64:537:28Waning Crescent13Sun
14Mon2:594.14:302.510:160.29:341.84:547:28Waning Crescent14Mon
15Tue3:424.25:132.611:000.210:211.94:557:27New Moon15Tue
16Wed4:234.25:542.711:430.111:071.94:557:27New Moon16Wed
17Thu5:024.26:342.712:240.14:567:26New Moon17Thu
18Fri5:404.07:152.71:030.14:577:26New Moon18Fri
19Sat6:183.87:552.712:381.71:420.14:587:25Waxing Crescent19Sat
20Sun6:563.58:352.71:251.62:190.14:587:24Waxing Crescent20Sun
21Mon7:383.29:142.72:151.52:550.34:597:24Waxing Crescent21Mon
22Tue8:252.99:522.83:101.43:290.45:007:23Waxing Crescent22Tue
23Wed9:212.610:303.04:121.24:010.75:017:22First Quarter23Wed
24Thu10:292.311:093.25:151.04:310.95:017:21First Quarter24Thu
25Fri11:442.211:513.56:170.85:041.25:027:21First Quarter25Fri
26Sat1:002.27:150.65:511.55:037:20First Quarter26Sat
27Sun12:393.92:112.38:110.46:511.75:047:19Waxing Gibbous27Sun
28Mon1:314.23:142.59:040.27:551.85:057:18Waxing Gibbous28Mon
29Tue2:254.54:092.79:560.08:571.85:067:17Waxing Gibbous29Tue
30Wed3:194.74:582.810:47-0.210:001.85:067:16Full Moon30Wed
31Thu4:134.85:453.011:36-0.311:011.65:077:15Full Moon31Thu
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 neap phase. Tonight's moon is 45% 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 minimum.

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 Third Quarter (45% illuminated). This places Blackslough Landing, San Joaquin River, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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