37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

66°
H 95°
L 56°
WNW
5mph
Low tide
1:41 pm

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

TIDE TIMES for Tuesday, September 29, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 18m at 1:41 pm (1.3 ft)
Next high tide : 7:49 pm (4.0 ft)
Sunset today : 6:51 pm
Sunrise tomorrow : 6:59 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Nov 1844

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:132.28:562.83:530.13:371.56:395:13Third Quarter1Fri
2Sat11:032.29:592.64:430.14:531.46:405:12Third Quarter2Sat
3Sun11:512.311:112.45:330.16:011.26:415:11Third Quarter3Sun
4Mon12:362.56:210.27:020.86:425:10Third Quarter4Mon
5Tue12:252.31:182.87:060.37:560.56:435:09Waning Crescent5Tue
6Wed1:352.32:003.17:490.58:470.26:445:08Waning Crescent6Wed
7Thu2:392.42:403.58:310.79:37-0.26:455:07Waning Crescent7Thu
8Fri3:382.53:213.99:120.910:27-0.46:465:06New Moon8Fri
9Sat4:332.64:044.29:551.111:17-0.66:475:05New Moon9Sat
10Sun5:262.74:474.410:411.36:485:04New Moon10Sun
11Mon6:182.75:334.512:07-0.711:30 AM1.46:495:04New Moon11Mon
12Tue7:112.76:234.412:58-0.712:221.46:505:03Waxing Crescent12Tue
13Wed8:062.77:164.11:49-0.61:211.46:525:02Waxing Crescent13Wed
14Thu9:012.68:143.72:41-0.52:261.46:535:01Waxing Crescent14Thu
15Fri9:552.69:183.23:34-0.33:381.36:545:01First Quarter15Fri
16Sat10:492.610:252.84:27-0.24:521.16:555:00First Quarter16Sat
17Sun11:412.711:342.45:200.06:020.86:564:59First Quarter17Sun
18Mon12:302.96:110.27:060.56:574:59First Quarter18Mon
19Tue12:432.11:163.06:590.48:030.36:584:58Waxing Gibbous19Tue
20Wed1:502.12:003.27:460.68:540.16:594:57Waxing Gibbous20Wed
21Thu2:512.12:413.48:300.89:40-0.17:004:57Waxing Gibbous21Thu
22Fri3:452.23:213.69:131.010:25-0.17:014:56Waxing Gibbous22Fri
23Sat4:322.33:583.79:561.211:07-0.27:024:56Full Moon23Sat
24Sun5:162.44:353.810:381.411:49-0.27:034:55Full Moon24Sun
25Mon5:592.55:103.811:191.57:044:55Full Moon25Mon
26Tue6:422.55:443.712:31-0.212:001.67:054:55Full Moon26Tue
27Wed7:262.56:183.61:12-0.212:411.67:064:54Waning Gibbous27Wed
28Thu8:112.46:543.31:53-0.21:241.67:074:54Waning Gibbous28Thu
29Fri8:562.47:333.12:34-0.22:131.57:084:54Waning Gibbous29Fri
30Sat9:402.48:212.73:15-0.13:161.47:094:54Waning Gibbous30Sat
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 88% 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 Gibbous (88% 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