37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

58°
H 85°
L 54°
NW
3mph
Low tide
7:48 am

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

TIDE TIMES for Saturday, September 5, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 38m at 7:48 am (0.3 ft)
Next high tide : 2:00 pm (2.2 ft)
Sunset today : 7:29 pm
Sunrise tomorrow : 6:39 am
Moon phase : Third Quarter (34% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Aug 1888

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:043.31:002.27:140.76:411.45:097:14Third Quarter1Wed
2Thu12:523.52:032.38:060.67:311.65:097:13Waning Crescent2Thu
3Fri1:403.72:592.48:550.58:201.75:107:12Waning Crescent3Fri
4Sat2:273.93:492.69:420.39:071.75:117:11Waning Crescent4Sat
5Sun3:124.04:342.710:270.29:541.75:127:10Waning Crescent5Sun
6Mon3:554.15:162.811:100.110:421.65:137:09New Moon6Mon
7Tue4:374.15:562.911:510.111:291.55:147:08New Moon7Tue
8Wed5:194.16:373.012:310.05:157:06New Moon8Wed
9Thu6:033.97:173.112:181.41:100.15:167:05Waxing Crescent9Thu
10Fri6:513.77:583.21:101.21:490.25:167:04Waxing Crescent10Fri
11Sat7:443.38:403.32:051.12:270.45:177:03Waxing Crescent11Sat
12Sun8:443.09:253.53:050.93:070.65:187:02Waxing Crescent12Sun
13Mon9:502.710:133.74:100.73:500.95:197:00First Quarter13Mon
14Tue11:002.511:063.85:170.64:421.25:206:59First Quarter14Tue
15Wed12:122.46:220.45:431.45:216:58First Quarter15Wed
16Thu12:024.01:232.47:240.36:471.65:226:57Waxing Gibbous16Thu
17Fri1:014.12:292.58:210.27:491.65:226:55Waxing Gibbous17Fri
18Sat2:004.23:252.79:140.18:471.65:236:54Waxing Gibbous18Sat
19Sun2:554.34:142.810:040.19:441.55:246:53Waxing Gibbous19Sun
20Mon3:474.34:583.010:510.110:371.45:256:51Full Moon20Mon
21Tue4:364.25:393.111:350.111:291.25:266:50Full Moon21Tue
22Wed5:234.06:193.112:170.25:276:49Full Moon22Wed
23Thu6:083.76:593.212:191.112:570.35:286:47Waning Gibbous23Thu
24Fri6:543.47:383.21:081.01:360.45:296:46Waning Gibbous24Fri
25Sat7:423.18:173.11:570.92:140.65:296:44Waning Gibbous25Sat
26Sun8:322.88:583.12:470.82:530.85:306:43Waning Gibbous26Sun
27Mon9:262.69:403.13:410.83:331.15:316:41Third Quarter27Mon
28Tue10:242.410:243.24:380.84:181.35:326:40Third Quarter28Tue
29Wed11:262.311:133.25:380.75:111.55:336:39Third Quarter29Wed
30Thu12:302.26:360.76:081.65:346:37Third Quarter30Thu
31Fri12:063.31:322.37:300.67:051.65:356:36Waning Crescent31Fri
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 34% 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 Third Quarter (34% 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