37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

63°
H 80°
L 52°
WSW
8mph
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 1h 25m 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 - Jan 1896

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:272.65:194.312:11-0.411:14 AM1.77:214:57Full Moon1Wed
2Thu7:102.66:074.112:54-0.512:131.67:224:57Waning Gibbous2Thu
3Fri7:542.76:583.71:36-0.51:151.47:224:58Waning Gibbous3Fri
4Sat8:372.87:553.32:17-0.42:211.17:224:59Waning Gibbous4Sat
5Sun9:213.08:592.82:57-0.23:300.97:225:00Waning Gibbous5Sun
6Mon10:053.210:102.33:380.14:420.67:225:01Third Quarter6Mon
7Tue10:513.411:252.04:200.55:520.47:225:02Third Quarter7Tue
8Wed11:393.75:050.86:570.27:225:03Third Quarter8Wed
9Thu12:431.912:313.95:571.27:580.07:225:04Waning Crescent9Thu
10Fri2:011.91:244.16:541.48:530.07:215:05Waning Crescent10Fri
11Sat3:112.12:174.27:531.69:45-0.17:215:06Waning Crescent11Sat
12Sun4:082.33:084.38:501.710:34-0.17:215:07Waning Crescent12Sun
13Mon4:542.43:564.39:461.811:19-0.17:215:08New Moon13Mon
14Tue5:352.54:414.210:391.77:215:09New Moon14Tue
15Wed6:142.65:244.012:01-0.111:30 AM1.67:205:10New Moon15Wed
16Thu6:522.66:063.712:41-0.112:201.57:205:11New Moon16Thu
17Fri7:302.66:473.31:19-0.11:091.37:195:12Waxing Crescent17Fri
18Sat8:082.67:313.01:550.01:591.27:195:13Waxing Crescent18Sat
19Sun8:442.78:192.62:290.12:521.07:195:14Waxing Crescent19Sun
20Mon9:212.89:122.33:020.43:490.97:185:15Waxing Crescent20Mon
21Tue9:572.910:142.03:310.64:500.87:185:16First Quarter21Tue
22Wed10:353.111:221.93:540.95:510.77:175:17First Quarter22Wed
23Thu11:163.33:551.26:510.67:165:18First Quarter23Thu
24Fri12:361.912:033.54:111.57:470.47:165:19First Quarter24Fri
25Sat1:482.012:553.75:021.78:390.27:155:20Waxing Gibbous25Sat
26Sun2:532.11:494.06:581.89:300.17:145:21Waxing Gibbous26Sun
27Mon3:462.32:424.28:141.810:17-0.17:145:23Waxing Gibbous27Mon
28Tue4:322.43:334.39:161.711:02-0.37:135:24Full Moon28Tue
29Wed5:142.64:234.310:161.611:45-0.47:125:25Full Moon29Wed
30Thu5:542.75:134.211:151.37:115:26Full Moon30Thu
31Fri6:342.96:043.912:26-0.412:141.07:115:27Full Moon31Fri
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