37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

76°
H 89°
L 54°
WSW
2mph
Low tide
3:02 pm

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

TIDE TIMES for Tuesday, September 15, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 07m at 3:02 pm (1.4 ft)
Next high tide : 9:05 pm (3.6 ft)
Sunset today : 7:13 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (22% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1868

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:583.15:163.211:230.511:490.46:085:55Full Moon1Thu
2Fri5:413.05:493.311:580.76:095:53Full Moon2Fri
3Sat6:252.96:213.412:310.312:320.86:105:52Waning Gibbous3Sat
4Sun7:122.86:533.41:140.21:031.06:115:50Waning Gibbous4Sun
5Mon8:022.77:283.52:000.21:311.26:125:49Waning Gibbous5Mon
6Tue8:572.58:103.42:490.21:581.46:135:47Waning Gibbous6Tue
7Wed9:562.49:023.43:440.22:381.56:145:46Third Quarter7Wed
8Thu10:572.410:063.34:450.14:071.66:155:44Third Quarter8Thu
9Fri11:592.411:183.35:460.15:381.56:165:43Third Quarter9Fri
10Sat12:572.56:450.16:501.36:175:41Third Quarter10Sat
11Sun12:323.21:512.77:390.07:531.06:185:40Waning Crescent11Sun
12Mon1:413.22:393.08:300.18:510.66:195:39Waning Crescent12Mon
13Tue2:453.23:243.39:180.19:460.36:205:37Waning Crescent13Tue
14Wed3:433.24:073.510:040.310:390.16:215:36New Moon14Wed
15Thu4:383.24:493.710:480.411:30-0.16:215:34New Moon15Thu
16Fri5:303.15:303.911:330.66:225:33New Moon16Fri
17Sat6:223.06:113.912:20-0.212:170.86:235:32Waxing Crescent17Sat
18Sun7:142.86:533.81:09-0.21:011.16:245:30Waxing Crescent18Sun
19Mon8:072.77:373.61:58-0.21:471.26:255:29Waxing Crescent19Mon
20Tue9:012.58:243.42:48-0.12:371.46:265:28Waxing Crescent20Tue
21Wed9:562.49:163.23:410.03:341.56:275:26First Quarter21Wed
22Thu10:512.310:122.94:350.14:381.56:285:25First Quarter22Thu
23Fri11:462.311:132.75:310.25:431.46:295:24First Quarter23Fri
24Sat12:382.36:240.26:431.26:305:22First Quarter24Sat
25Sun12:152.61:262.47:140.27:381.06:315:21Waxing Gibbous25Sun
26Mon1:162.52:102.67:590.38:290.76:335:20Waxing Gibbous26Mon
27Tue2:132.52:502.88:420.39:160.56:345:19Waxing Gibbous27Tue
28Wed3:062.63:273.09:230.410:010.36:355:18Waxing Gibbous28Wed
29Thu3:552.64:023.210:020.610:450.16:365:16Full Moon29Thu
30Fri4:422.74:363.410:400.711:29-0.16:375:15Full Moon30Fri
31Sat5:272.75:093.611:160.96:385:14Full Moon31Sat
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 transitional phase. Tonight's moon is 22% 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 shifting between spring and neap.

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 Crescent (22% illuminated). This places Blackslough Landing, San Joaquin River, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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