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 12m 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 - Apr 1890

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:082.32:513.08:591.09:410.15:506:28Waxing Gibbous1Tue
2Wed3:462.53:403.09:480.810:200.25:486:29Waxing Gibbous2Wed
3Thu4:212.74:262.910:340.510:570.25:476:30Full Moon3Thu
4Fri4:552.95:122.911:190.311:330.45:456:31Full Moon4Fri
5Sat5:273.15:582.812:030.15:446:32Full Moon5Sat
6Sun5:583.36:462.712:060.612:470.05:426:33Full Moon6Sun
7Mon6:293.47:382.612:380.81:33-0.15:416:34Waning Gibbous7Mon
8Tue7:043.68:342.51:061.12:23-0.25:396:35Waning Gibbous8Tue
9Wed7:433.69:332.31:321.33:17-0.25:386:36Waning Gibbous9Wed
10Thu8:323.610:362.32:021.54:17-0.15:366:37Third Quarter10Thu
11Fri9:303.511:392.22:511.65:21-0.15:356:37Third Quarter11Fri
12Sat10:403.44:431.66:23-0.15:336:38Third Quarter12Sat
13Sun12:422.311:55 AM3.36:131.57:20-0.15:326:39Third Quarter13Sun
14Mon1:392.41:093.27:241.28:13-0.15:316:40Waning Crescent14Mon
15Tue2:282.62:173.18:270.99:010.05:296:41Waning Crescent15Tue
16Wed3:132.93:193.09:240.59:460.15:286:42Waning Crescent16Wed
17Thu3:543.14:152.910:180.210:290.35:266:43New Moon17Thu
18Fri4:333.45:082.811:09-0.111:110.55:256:44New Moon18Fri
19Sat5:113.55:582.711:57-0.211:520.75:246:45New Moon19Sat
20Sun5:483.66:482.612:44-0.35:226:46New Moon20Sun
21Mon6:243.67:382.512:321.01:30-0.35:216:47Waxing Crescent21Mon
22Tue7:023.68:292.41:121.22:16-0.25:206:48Waxing Crescent22Tue
23Wed7:403.59:212.31:521.43:04-0.15:186:49Waxing Crescent23Wed
24Thu8:223.310:152.22:361.53:560.05:176:49Waxing Crescent24Thu
25Fri9:113.111:102.13:311.64:500.15:166:50First Quarter25Fri
26Sat10:072.94:391.65:460.25:146:51First Quarter26Sat
27Sun12:042.111:10 AM2.75:481.56:380.25:136:52First Quarter27Sun
28Mon12:552.212:172.66:511.37:270.25:126:53First Quarter28Mon
29Tue1:422.31:212.57:471.08:110.25:116:54Waxing Gibbous29Tue
30Wed2:232.52:212.58:390.78:520.35:106:55Waxing Gibbous30Wed
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