37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

99°
H -°
L 60°
WNW
10mph
Low tide
10:18 pm

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

TIDE TIMES for Wednesday, October 7, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 5h 35m at 10:18 pm (0.5 ft)
Next high tide (tomorrow) : 4:14 am (3.0 ft)
Sunset today : 6:39 pm
Sunrise tomorrow : 7:07 am
Moon phase : Waning Crescent (9% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1830

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:163.44:423.510:430.311:110.26:085:56Full Moon1Fri
2Sat5:093.45:233.811:250.46:095:55Full Moon2Sat
3Sun6:023.36:053.912:030.012:080.66:095:53Full Moon3Sun
4Mon6:563.26:494.012:55-0.212:520.86:105:52Waning Gibbous4Mon
5Tue7:533.07:384.01:49-0.21:381.06:115:50Waning Gibbous5Tue
6Wed8:532.88:313.82:45-0.22:301.26:125:49Waning Gibbous6Wed
7Thu9:542.69:293.63:43-0.13:301.36:135:47Third Quarter7Thu
8Fri10:562.510:313.44:440.04:391.46:145:46Third Quarter8Fri
9Sat11:582.511:353.25:450.15:481.36:155:44Third Quarter9Sat
10Sun12:572.56:420.26:531.26:165:43Waning Crescent10Sun
11Mon12:403.01:492.67:350.27:521.06:175:41Waning Crescent11Mon
12Tue1:422.92:362.88:240.28:450.86:185:40Waning Crescent12Tue
13Wed2:382.93:162.99:080.39:350.56:195:38Waning Crescent13Wed
14Thu3:292.93:543.19:500.410:210.46:205:37New Moon14Thu
15Fri4:162.84:293.210:310.511:040.26:215:35New Moon15Fri
16Sat5:012.85:043.311:100.711:470.16:225:34New Moon16Sat
17Sun5:442.85:373.411:480.86:235:33New Moon17Sun
18Mon6:282.76:103.412:290.112:251.06:245:31New Moon18Mon
19Tue7:132.66:413.31:110.11:001.26:255:30Waxing Crescent19Tue
20Wed8:002.57:133.31:540.11:341.36:265:29Waxing Crescent20Wed
21Thu8:502.47:483.22:390.12:071.56:275:27Waxing Crescent21Thu
22Fri9:432.38:313.03:270.22:451.56:285:26Waxing Crescent22Fri
23Sat10:372.39:252.94:200.24:001.56:295:25First Quarter23Sat
24Sun11:322.310:332.85:150.25:201.56:305:23First Quarter24Sun
25Mon12:242.46:100.26:281.36:315:22First Quarter25Mon
26Tue1:142.67:010.17:271.06:325:21Waxing Gibbous26Tue
27Wed1:002.72:002.87:490.28:220.66:335:20Waxing Gibbous27Wed
28Thu2:062.82:433.28:350.29:140.36:345:19Waxing Gibbous28Thu
29Fri3:082.93:263.59:200.410:06-0.16:355:17Waxing Gibbous29Fri
30Sat4:053.04:073.810:040.510:58-0.36:365:16Full Moon30Sat
31Sun4:593.04:504.110:490.711:49-0.56:375:15Full Moon31Sun
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 9% 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 (9% 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