37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

55°
H -°
L 51°
W
6mph
Low tide
7:48 am

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

TIDE TIMES for Saturday, September 5, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 5h 04m at 7:48 am (0.3 ft)
Next high tide : 2:00 pm (2.2 ft)
Sunset today : 7:29 pm
Sunrise tomorrow : 6:39 am
Moon phase : Third Quarter (34% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 1889

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:343.06:064.112:25-0.312:141.37:095:29New Moon1Fri
2Sat7:173.06:543.71:08-0.21:081.17:085:30Waxing Crescent2Sat
3Sun8:013.07:443.31:50-0.12:021.07:075:31Waxing Crescent3Sun
4Mon8:433.08:372.82:310.12:580.97:065:32Waxing Crescent4Mon
5Tue9:263.09:322.53:120.33:560.87:055:33Waxing Crescent5Tue
6Wed10:093.010:312.23:530.64:560.77:055:35First Quarter6Wed
7Thu10:533.111:352.04:380.95:560.67:035:36First Quarter7Thu
8Fri11:403.25:271.16:540.57:025:37First Quarter8Fri
9Sat12:422.012:303.36:191.37:490.47:015:38First Quarter9Sat
10Sun1:482.01:213.47:131.58:400.37:005:39Waxing Gibbous10Sun
11Mon2:472.12:113.68:051.69:280.26:595:40Waxing Gibbous11Mon
12Tue3:382.32:583.78:551.610:130.16:585:41Waxing Gibbous12Tue
13Wed4:212.43:433.89:431.510:560.06:575:42Waxing Gibbous13Wed
14Thu5:022.64:253.910:301.411:36-0.16:565:43Full Moon14Thu
15Fri5:402.75:073.811:161.36:555:45Full Moon15Fri
16Sat6:182.85:493.612:15-0.112:031.16:535:46Full Moon16Sat
17Sun6:552.96:333.412:52-0.112:501.06:525:47Waning Gibbous17Sun
18Mon7:323.07:213.21:270.01:390.86:515:48Waning Gibbous18Mon
19Tue8:103.18:162.92:020.22:340.66:505:49Waning Gibbous19Tue
20Wed8:503.29:182.62:350.53:340.56:485:50Waning Gibbous20Wed
21Thu9:343.410:262.33:100.84:390.46:475:51Third Quarter21Thu
22Fri10:243.611:382.23:501.15:470.36:465:52Third Quarter22Fri
23Sat11:203.74:491.36:520.26:445:53Third Quarter23Sat
24Sun12:522.212:233.86:051.57:520.16:435:54Waning Crescent24Sun
25Mon2:022.31:274.07:161.58:490.06:425:55Waning Crescent25Mon
26Tue3:022.42:284.08:211.59:41-0.16:405:56Waning Crescent26Tue
27Wed3:532.63:254.09:211.310:29-0.16:395:57Waning Crescent27Wed
28Thu4:382.84:174.010:171.111:14-0.16:375:58New Moon28Thu
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 transitional phase. Tonight's moon is 34% 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 Third Quarter (34% 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