37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

65°
H 72°
L 46°
NNW
6mph
High tide
4:50 pm

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

TIDE TIMES for Saturday, October 24, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 11:44 pm (-0.2 ft)
Next high tide : in 4h 20m at 4:50 pm (3.5 ft)
Sunset today : 6:16 pm
Sunrise tomorrow : 7:23 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 1801

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:293.77:492.612:311.01:41-0.25:576:35Waning Gibbous1Wed
2Thu7:053.88:472.412:571.22:33-0.25:566:36Waning Gibbous2Thu
3Fri7:493.99:492.31:221.43:31-0.25:546:37Waning Gibbous3Fri
4Sat8:423.810:532.21:511.64:34-0.15:536:38Third Quarter4Sat
5Sun9:453.711:592.12:401.75:39-0.15:516:39Third Quarter5Sun
6Mon10:583.54:551.76:41-0.15:506:39Third Quarter6Mon
7Tue1:022.212:133.36:261.57:37-0.15:486:40Third Quarter7Tue
8Wed1:562.31:263.17:371.28:26-0.15:476:41Waning Crescent8Wed
9Thu2:432.52:323.08:400.89:120.05:456:42Waning Crescent9Thu
10Fri3:232.83:322.89:360.49:540.25:446:43Waning Crescent10Fri
11Sat4:013.14:262.710:290.110:340.35:426:44New Moon11Sat
12Sun4:373.35:172.711:17-0.111:130.65:416:45New Moon12Sun
13Mon5:123.56:052.612:04-0.25:406:46New Moon13Mon
14Tue5:473.66:532.512:48-0.35:386:47New Moon14Tue
15Wed6:213.67:422.412:281.11:32-0.25:376:48Waxing Crescent15Wed
16Thu6:553.68:322.41:041.42:18-0.15:356:49Waxing Crescent16Thu
17Fri7:323.59:232.21:371.53:060.05:346:50Waxing Crescent17Fri
18Sat8:123.310:172.12:091.73:580.25:336:50Waxing Crescent18Sat
19Sun9:003.211:132.02:461.74:540.25:316:51First Quarter19Sun
20Mon9:582.94:161.75:500.25:306:52First Quarter20Mon
21Tue12:082.011:03 AM2.75:391.56:430.15:286:53First Quarter21Tue
22Wed12:592.012:122.66:471.37:300.15:276:54First Quarter22Wed
23Thu1:442.21:192.57:451.08:120.15:266:55Waxing Gibbous23Thu
24Fri2:232.42:212.48:380.78:510.25:246:56Waxing Gibbous24Fri
25Sat2:592.73:192.59:270.39:290.45:236:57Waxing Gibbous25Sat
26Sun3:333.04:132.510:150.010:050.75:226:58Waxing Gibbous26Sun
27Mon4:063.45:062.611:02-0.310:391.05:216:59Full Moon27Mon
28Tue4:393.75:582.611:49-0.411:141.25:197:00Full Moon28Tue
29Wed5:154.06:512.612:37-0.55:187:01Full Moon29Wed
30Thu5:544.27:462.51:27-0.65:177:02Waning Gibbous30Thu
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 98% 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 Full Moon (98% 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