37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

76°
H 89°
L 54°
WSW
2mph
Low tide
3:02 pm

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

TIDE TIMES for Tuesday, September 15, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 3h 18m at 3:02 pm (1.4 ft)
Next high tide : 9:05 pm (3.6 ft)
Sunset today : 7:13 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (22% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1868

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:333.65:232.911:240.311:251.15:426:41Full Moon1Tue
2Wed5:143.55:583.012:020.45:436:40Full Moon2Wed
3Thu5:553.46:333.112:080.912:380.45:446:38Full Moon3Thu
4Fri6:363.27:083.112:520.81:120.65:456:37Waning Gibbous4Fri
5Sat7:203.07:423.21:350.81:440.85:466:35Waning Gibbous5Sat
6Sun8:082.88:173.22:220.72:121.05:476:34Waning Gibbous6Sun
7Mon9:022.68:563.33:130.72:361.25:486:32Waning Gibbous7Mon
8Tue10:032.49:423.44:110.63:011.45:486:31Third Quarter8Tue
9Wed11:092.410:383.55:140.53:521.55:496:29Third Quarter9Wed
10Thu12:152.46:160.45:341.65:506:28Third Quarter10Thu
11Fri1:192.57:150.36:511.55:516:26Waning Crescent11Fri
12Sat12:503.72:172.68:100.27:561.45:526:25Waning Crescent12Sat
13Sun1:553.83:082.99:010.18:551.15:536:23Waning Crescent13Sun
14Mon2:563.93:553.19:500.09:520.95:536:21Waning Crescent14Mon
15Tue3:523.94:393.310:370.110:480.65:546:20New Moon15Tue
16Wed4:473.85:223.611:220.211:420.45:556:18New Moon16Wed
17Thu5:393.76:053.712:060.35:566:17New Moon17Thu
18Fri6:323.46:483.812:350.212:500.55:576:15Waxing Crescent18Fri
19Sat7:263.27:333.71:280.21:330.75:586:14Waxing Crescent19Sat
20Sun8:222.98:193.62:220.22:191.05:596:12Waxing Crescent20Sun
21Mon9:192.79:093.53:170.23:081.26:006:10First Quarter21Mon
22Tue10:182.510:013.44:140.34:031.46:006:09First Quarter22Tue
23Wed11:182.310:573.25:130.45:051.56:016:07First Quarter23Wed
24Thu12:182.36:110.46:071.56:026:06First Quarter24Thu
25Fri1:162.37:060.47:061.46:036:04Waxing Gibbous25Fri
26Sat12:543.12:062.47:560.47:591.26:046:03Waxing Gibbous26Sat
27Sun1:503.12:512.68:420.38:491.06:056:01Waxing Gibbous27Sun
28Mon2:423.13:302.79:260.39:360.86:066:00Waxing Gibbous28Mon
29Tue3:303.14:072.910:060.310:220.76:075:58Full Moon29Tue
30Wed4:153.14:433.010:450.411:060.56:075:56Full Moon30Wed
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 transitional phase. Tonight's moon is 22% 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 shifting between spring and neap.

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 Waxing Crescent (22% illuminated). This places Blackslough Landing, San Joaquin River, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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