37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

90°
H 90°
L 57°
WNW
5mph
High tide
3:56 pm

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

TIDE TIMES for Monday, September 7, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 9:18 pm (1.5 ft)
Next high tide : in 40m at 3:56 pm (2.5 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waning Crescent (14% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jul 1883

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:564.33:162.59:120.08:311.44:537:39Waning Crescent1Sun
2Mon2:484.54:122.610:04-0.19:271.54:537:39Waning Crescent2Mon
3Tue3:394.55:032.810:53-0.210:231.64:547:38New Moon3Tue
4Wed4:284.55:502.911:40-0.211:181.54:547:38New Moon4Wed
5Thu5:154.46:353.012:25-0.24:557:38New Moon5Thu
6Fri6:014.17:203.012:121.51:09-0.14:567:38Waxing Crescent6Fri
7Sat6:473.88:043.01:051.41:500.04:567:38Waxing Crescent7Sat
8Sun7:353.48:483.01:591.32:320.24:577:37Waxing Crescent8Sun
9Mon8:253.09:313.02:541.23:130.34:577:37Waxing Crescent9Mon
10Tue9:182.710:143.13:511.13:540.64:587:37First Quarter10Tue
11Wed10:162.410:573.24:511.04:370.84:597:36First Quarter11Wed
12Thu11:182.211:423.35:510.95:231.04:597:36First Quarter12Thu
13Fri12:232.16:480.76:111.25:007:35First Quarter13Fri
14Sat12:283.41:282.17:420.67:001.45:017:35Waxing Gibbous14Sat
15Sun1:153.62:282.28:320.57:491.55:017:34Waxing Gibbous15Sun
16Mon2:023.83:222.49:200.38:371.65:027:34Waxing Gibbous16Mon
17Tue2:484.04:112.610:050.29:261.75:037:33Waxing Gibbous17Tue
18Wed3:324.14:552.710:490.110:151.65:047:33Full Moon18Wed
19Thu4:154.25:372.811:310.011:041.65:047:32Full Moon19Thu
20Fri4:574.16:183.012:120.05:057:32Full Moon20Fri
21Sat5:424.07:003.112:520.05:067:31Full Moon21Sat
22Sun6:283.87:423.212:471.31:310.15:077:30Waning Gibbous22Sun
23Mon7:203.58:253.41:431.12:100.25:077:29Waning Gibbous23Mon
24Tue8:173.29:103.52:421.02:500.45:087:29Waning Gibbous24Tue
25Wed9:202.89:583.73:450.83:320.75:097:28Third Quarter25Wed
26Thu10:282.610:493.94:520.74:201.05:107:27Third Quarter26Thu
27Fri11:392.411:434.05:580.55:171.25:117:26Third Quarter27Fri
28Sat12:502.37:010.46:191.45:127:25Waning Crescent28Sat
29Sun12:404.11:592.47:590.37:211.55:127:25Waning Crescent29Sun
30Mon1:384.33:002.58:540.28:211.65:137:24Waning Crescent30Mon
31Tue2:334.33:532.79:440.19:181.55:147:23Waning Crescent31Tue
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 Waning 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