37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

59°
H -°
L 55°
WSW
5mph
Low tide
5:36 am

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

TIDE TIMES for Thursday, September 3, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 2h 26m at 5:36 am (0.4 ft)
Next high tide : 11:37 am (2.3 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (56% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 1903

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:243.68:422.61:271.02:37-0.15:516:27Waxing Crescent1Wed
2Thu8:103.69:402.42:051.23:320.05:506:28Waxing Crescent2Thu
3Fri9:033.510:412.42:541.34:320.05:486:29First Quarter3Fri
4Sat10:063.411:422.44:071.35:340.05:476:30First Quarter4Sat
5Sun11:153.35:271.36:330.05:456:31First Quarter5Sun
6Mon12:432.412:263.16:401.17:290.05:446:32Waxing Gibbous6Mon
7Tue1:392.61:353.17:440.98:210.15:426:33Waxing Gibbous7Tue
8Wed2:312.82:383.08:440.69:100.15:416:34Waxing Gibbous8Wed
9Thu3:173.13:363.09:390.39:560.35:396:35Waxing Gibbous9Thu
10Fri4:003.34:303.010:310.110:410.45:386:35Full Moon10Fri
11Sat4:423.55:202.911:20-0.111:240.65:366:36Full Moon11Sat
12Sun5:213.66:082.912:08-0.25:356:37Full Moon12Sun
13Mon6:013.66:562.812:060.712:54-0.25:346:38Full Moon13Mon
14Tue6:403.67:442.612:480.91:39-0.15:326:39Waning Gibbous14Tue
15Wed7:203.58:332.51:311.12:26-0.15:316:40Waning Gibbous15Wed
16Thu8:013.39:242.42:141.23:140.05:296:41Waning Gibbous16Thu
17Fri8:463.110:162.23:031.34:050.15:286:42Third Quarter17Fri
18Sat9:362.911:082.23:591.34:590.25:276:43Third Quarter18Sat
19Sun10:332.75:031.35:530.25:256:44Third Quarter19Sun
20Mon12:012.211:35 AM2.56:061.26:440.25:246:45Third Quarter20Mon
21Tue12:522.312:392.57:051.07:320.35:226:46Third Quarter21Tue
22Wed1:402.41:402.47:590.88:170.35:216:47Waning Crescent22Wed
23Thu2:232.62:372.58:490.59:000.45:206:47Waning Crescent23Thu
24Fri3:042.93:302.69:370.39:400.55:186:48Waning Crescent24Fri
25Sat3:413.24:212.710:240.110:200.75:176:49New Moon25Sat
26Sun4:183.45:092.711:09-0.111:000.85:166:50New Moon26Sun
27Mon4:553.75:582.811:55-0.311:391.05:156:51New Moon27Mon
28Tue5:323.86:482.812:42-0.45:136:52New Moon28Tue
29Wed6:123.97:402.712:201.11:30-0.45:126:53Waxing Crescent29Wed
30Thu6:563.98:352.61:041.32:20-0.45:116:54Waxing Crescent30Thu
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 56% 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 (56% 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