37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

56°
H 80°
L 59°
SW
2mph
High tide
11:37 am

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

TIDE TIMES for Thursday, September 3, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 3:31 pm (1.7 ft)
Next high tide : in 5h 24m at 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 - Feb 1902

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:513.35:361.27:070.57:105:28Third Quarter1Sat
2Sun12:522.012:423.46:311.38:000.47:095:29Waning Crescent2Sun
3Mon1:552.01:343.57:251.48:490.37:085:30Waning Crescent3Mon
4Tue2:512.22:243.68:171.49:350.27:085:31Waning Crescent4Tue
5Wed3:402.33:103.79:071.410:190.17:075:32Waning Crescent5Wed
6Thu4:232.53:543.89:561.311:000.07:065:33New Moon6Thu
7Fri5:032.74:373.810:431.211:400.07:055:34New Moon7Fri
8Sat5:412.85:193.711:301.17:045:36New Moon8Sat
9Sun6:193.06:023.512:180.012:181.07:035:37New Moon9Sun
10Mon6:573.16:483.312:540.11:060.87:025:38Waxing Crescent10Mon
11Tue7:353.27:383.11:300.21:570.77:005:39Waxing Crescent11Tue
12Wed8:163.48:342.82:040.42:520.66:595:40Waxing Crescent12Wed
13Thu8:593.59:362.52:400.73:540.56:585:41Waxing Crescent13Thu
14Fri9:483.610:442.33:190.94:590.46:575:42First Quarter14Fri
15Sat10:433.711:542.24:091.16:050.36:565:43First Quarter15Sat
16Sun11:433.85:201.37:080.26:555:44First Quarter16Sun
17Mon1:052.212:463.96:331.48:060.16:535:45Waxing Gibbous17Mon
18Tue2:102.41:483.97:401.48:590.06:525:46Waxing Gibbous18Tue
19Wed3:072.52:473.98:421.29:490.06:515:48Waxing Gibbous19Wed
20Thu3:572.73:423.99:391.110:360.06:505:49Full Moon20Thu
21Fri4:412.94:323.810:340.911:200.06:485:50Full Moon21Fri
22Sat5:233.15:203.611:260.86:475:51Full Moon22Sat
23Sun6:033.26:073.412:010.112:160.66:465:52Full Moon23Sun
24Mon6:423.36:533.212:420.21:050.56:455:53Waning Gibbous24Mon
25Tue7:223.37:402.91:200.41:520.56:435:54Waning Gibbous25Tue
26Wed8:023.38:292.61:590.62:410.56:425:55Waning Gibbous26Wed
27Thu8:423.29:212.42:370.83:330.56:405:56Waning Gibbous27Thu
28Fri9:253.210:162.23:171.04:290.66:395:57Third Quarter28Fri
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 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