37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

82°
H 90°
L 53°
NW
9mph
Low tide
2:27 pm

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

TIDE TIMES for Monday, September 14, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 2h 05m at 2:27 pm (1.1 ft)
Next high tide : 8:26 pm (3.6 ft)
Sunset today : 7:15 pm
Sunrise tomorrow : 6:46 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 1871

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:042.22:233.78:131.69:430.27:175:35Waxing Gibbous1Wed
2Thu3:542.33:083.99:021.610:280.17:165:36Waxing Gibbous2Thu
3Fri4:382.53:524.09:491.611:110.07:155:38Full Moon3Fri
4Sat5:192.64:334.010:361.611:51-0.17:145:39Full Moon4Sat
5Sun5:592.75:143.911:231.57:135:40Full Moon5Sun
6Mon6:372.75:563.812:31-0.212:101.37:125:41Full Moon6Mon
7Tue7:162.86:413.51:08-0.212:591.17:115:42Waning Gibbous7Tue
8Wed7:552.97:313.21:45-0.11:521.07:105:43Waning Gibbous8Wed
9Thu8:343.08:272.92:200.12:500.87:095:44Waning Gibbous9Thu
10Fri9:153.29:322.52:560.43:540.67:085:45Waning Gibbous10Fri
11Sat10:003.410:432.33:320.75:020.57:075:47Third Quarter11Sat
12Sun10:493.611:582.14:151.06:100.37:065:48Third Quarter12Sun
13Mon11:443.85:121.37:140.27:055:49Third Quarter13Mon
14Tue1:132.112:444.06:221.58:130.07:045:50Waning Crescent14Tue
15Wed2:242.21:454.17:301.69:090.07:025:51Waning Crescent15Wed
16Thu3:242.42:444.28:331.610:00-0.17:015:52Waning Crescent16Thu
17Fri4:142.63:394.29:331.510:48-0.17:005:53New Moon17Fri
18Sat4:582.74:304.110:291.311:33-0.16:595:54New Moon18Sat
19Sun5:402.95:183.911:231.26:575:55New Moon19Sun
20Mon6:202.96:043.712:15-0.112:141.06:565:56New Moon20Mon
21Tue6:593.06:513.312:550.01:040.86:555:57Waxing Crescent21Tue
22Wed7:373.07:383.01:330.11:530.76:545:58Waxing Crescent22Wed
23Thu8:163.08:282.72:110.42:430.66:525:59Waxing Crescent23Thu
24Fri8:553.09:212.42:480.63:360.66:516:00Waxing Crescent24Fri
25Sat9:353.010:192.23:250.94:330.66:506:01First Quarter25Sat
26Sun10:173.111:212.04:051.15:330.56:486:02First Quarter26Sun
27Mon11:043.14:541.36:320.56:476:04First Quarter27Mon
28Tue12:262.011:57 AM3.25:531.57:280.46:456:05First Quarter28Tue
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 spring phase. Tonight's moon is 14% 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 maximum.

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 (14% illuminated). This places Blackslough Landing, San Joaquin River, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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