37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

58°
H 96°
L 60°
SW
2mph
Low tide
11:03 am

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

TIDE TIMES for Thursday, September 24, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 52m at 11:03 am (0.2 ft)
Next high tide : 5:05 pm (2.8 ft)
Sunset today : 6:59 pm
Sunrise tomorrow : 6:55 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1854

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:033.61:542.47:350.07:231.56:085:56Waxing Gibbous1Sun
2Mon1:153.62:432.68:280.08:271.26:095:54Waxing Gibbous2Mon
3Tue2:223.53:262.99:160.09:250.86:105:53Waxing Gibbous3Tue
4Wed3:223.44:063.110:000.110:200.56:115:51Full Moon4Wed
5Thu4:173.34:443.310:420.211:110.26:115:50Full Moon5Thu
6Fri5:093.15:223.511:230.46:125:48Full Moon6Fri
7Sat5:592.95:583.612:010.012:020.76:135:47Full Moon7Sat
8Sun6:502.86:353.612:49-0.112:401.06:145:45Waning Gibbous8Sun
9Mon7:412.67:123.61:36-0.11:191.26:155:44Waning Gibbous9Mon
10Tue8:352.57:513.52:240.01:581.56:165:42Waning Gibbous10Tue
11Wed9:302.48:343.43:150.12:411.66:175:41Waning Gibbous11Wed
12Thu10:272.29:253.24:090.23:371.86:185:39Third Quarter12Thu
13Fri11:262.210:243.05:070.34:481.86:195:38Third Quarter13Fri
14Sat12:242.26:050.35:581.76:205:37Third Quarter14Sat
15Sun1:172.26:580.37:001.56:215:35Third Quarter15Sun
16Mon12:332.82:022.37:460.27:551.26:225:34Waning Crescent16Mon
17Tue1:342.82:422.58:300.28:460.96:235:32Waning Crescent17Tue
18Wed2:312.73:182.79:100.29:330.66:245:31Waning Crescent18Wed
19Thu3:232.73:512.99:480.310:190.36:255:30Waning Crescent19Thu
20Fri4:122.74:233.210:240.511:040.16:265:28New Moon20Fri
21Sat5:002.84:543.510:580.711:48-0.16:275:27New Moon21Sat
22Sun5:492.75:263.711:301.06:285:26New Moon22Sun
23Mon6:402.75:593.912:34-0.312:001.26:295:24Waxing Crescent23Mon
24Tue7:342.66:374.01:21-0.312:291.46:305:23Waxing Crescent24Tue
25Wed8:322.57:214.02:13-0.31:001.66:315:22Waxing Crescent25Wed
26Thu9:322.48:143.83:08-0.31:401.76:325:21Waxing Crescent26Thu
27Fri10:342.39:193.64:08-0.23:031.86:335:19First Quarter27Fri
28Sat11:352.310:333.35:10-0.14:531.76:345:18First Quarter28Sat
29Sun12:332.46:10-0.16:151.46:355:17First Quarter29Sun
30Mon1:252.67:04-0.17:241.06:365:16Waxing Gibbous30Mon
31Tue1:042.92:112.87:540.08:250.66:375:15Waxing Gibbous31Tue
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 96% 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 Gibbous (96% 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