37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

62°
H 80°
L 52°
WSW
6mph
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 26m 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 - Sep 1895

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:543.74:112.610:010.39:421.45:356:35Waxing Gibbous1Sun
2Mon3:413.64:452.710:400.310:301.25:366:34Full Moon2Mon
3Tue4:253.55:172.811:160.311:161.05:376:32Full Moon3Tue
4Wed5:073.35:492.911:510.35:376:31Full Moon4Wed
5Thu5:483.26:193.012:000.812:240.55:386:29Full Moon5Thu
6Fri6:313.06:493.112:440.712:540.75:396:28Waning Gibbous6Fri
7Sat7:162.87:173.31:270.61:201.05:406:26Waning Gibbous7Sat
8Sun8:052.67:463.42:120.61:361.25:416:25Waning Gibbous8Sun
9Mon8:592.48:193.53:010.61:391.55:426:23Waning Gibbous9Mon
10Tue10:002.39:023.63:580.61:531.65:436:21Third Quarter10Tue
11Wed11:072.29:563.65:010.62:251.85:436:20Third Quarter11Wed
12Thu12:162.26:060.53:151.95:446:18Third Quarter12Thu
13Fri1:212.27:060.35:511.95:456:17Third Quarter13Fri
14Sat12:153.72:172.38:010.17:261.75:466:15Waning Crescent14Sat
15Sun1:273.83:032.58:510.08:321.35:476:14Waning Crescent15Sun
16Mon2:333.83:442.89:370.09:330.95:486:12Waning Crescent16Mon
17Tue3:333.74:233.110:200.010:300.55:496:11New Moon17Tue
18Wed4:303.65:023.411:010.211:260.25:496:09New Moon18Wed
19Thu5:253.45:413.711:410.45:506:07New Moon19Thu
20Fri6:203.26:213.912:20-0.112:210.75:516:06Waxing Crescent20Fri
21Sat7:162.97:034.01:14-0.21:001.05:526:04Waxing Crescent21Sat
22Sun8:142.77:484.02:08-0.11:401.35:536:03Waxing Crescent22Sun
23Mon9:132.58:373.93:040.02:241.55:546:01Waxing Crescent23Mon
24Tue10:152.39:313.74:030.23:181.75:556:00First Quarter24Tue
25Wed11:202.210:313.55:050.34:271.85:565:58First Quarter25Wed
26Thu12:252.26:060.45:411.85:565:56First Quarter26Thu
27Fri1:262.27:030.46:481.65:575:55Waxing Gibbous27Fri
28Sat12:383.22:152.37:540.37:471.45:585:53Waxing Gibbous28Sat
29Sun1:383.12:532.48:390.38:401.15:595:52Waxing Gibbous29Sun
30Mon2:333.03:282.69:200.39:290.86:005:50Waxing Gibbous30Mon
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