37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

64°
H -°
L 60°
W
9mph
Low tide
6:43 am

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

TIDE TIMES for Friday, September 4, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 13m at 6:43 am (0.3 ft)
Next high tide : 12:49 pm (2.2 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 - Sep 1896

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:572.26:510.63:591.95:366:34Third Quarter1Tue
2Wed1:582.27:460.46:531.95:366:33Waning Crescent2Wed
3Thu12:593.72:492.48:360.37:591.75:376:31Waning Crescent3Thu
4Fri2:013.83:312.59:210.18:571.45:386:29Waning Crescent4Fri
5Sat2:583.84:102.810:040.09:531.15:396:28Waning Crescent5Sat
6Sun3:523.84:473.110:450.010:480.75:406:26New Moon6Sun
7Mon4:453.75:233.411:240.211:420.45:416:25New Moon7Mon
8Tue5:393.56:013.612:020.45:426:23New Moon8Tue
9Wed6:333.26:403.912:360.212:390.75:426:22Waxing Crescent9Wed
10Thu7:313.07:234.11:310.01:161.05:436:20Waxing Crescent10Thu
11Fri8:312.78:104.12:280.01:541.35:446:19Waxing Crescent11Fri
12Sat9:342.59:024.13:280.12:371.55:456:17First Quarter12Sat
13Sun10:402.310:014.04:320.23:351.75:466:16First Quarter13Sun
14Mon11:492.311:063.85:380.34:541.85:476:14First Quarter14Mon
15Tue12:582.36:400.36:111.85:486:12First Quarter15Tue
16Wed12:123.72:002.37:380.37:181.65:486:11Waxing Gibbous16Wed
17Thu1:173.52:472.58:280.38:181.35:496:09Waxing Gibbous17Thu
18Fri2:163.43:262.69:130.29:121.15:506:08Waxing Gibbous18Fri
19Sat3:093.34:012.79:530.310:020.85:516:06Waxing Gibbous19Sat
20Sun3:573.14:342.910:310.310:480.65:526:05Full Moon20Sun
21Mon4:433.05:053.111:080.511:320.45:536:03Full Moon21Mon
22Tue5:272.95:363.211:420.75:546:01Full Moon22Tue
23Wed6:102.86:063.312:150.312:150.95:546:00Full Moon23Wed
24Thu6:552.76:353.412:570.312:461.15:555:58Waning Gibbous24Thu
25Fri7:422.67:043.41:400.31:111.45:565:57Waning Gibbous25Fri
26Sat8:322.57:363.42:260.41:221.65:575:55Waning Gibbous26Sat
27Sun9:272.38:143.43:160.41:241.75:585:54Waning Gibbous27Sun
28Mon10:262.29:033.44:130.51:481.85:595:52Third Quarter28Mon
29Tue11:282.110:043.35:130.42:331.86:005:51Third Quarter29Tue
30Wed12:282.16:130.35:261.86:015:49Third Quarter30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

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

Collapse All
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