37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

60°
H 92°
L 58°
WNW
3mph
High tide
11:33 am

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

TIDE TIMES for Friday, October 2, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 3:25 pm (1.8 ft)
Next high tide : in 4h 18m at 11:33 am (2.3 ft)
Sunset today : 6:47 pm
Sunrise tomorrow : 7:02 am
Moon phase : Third Quarter (59% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 1839

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:362.77:123.11:280.01:331.07:175:35Waning Gibbous1Fri
2Sat8:122.87:582.72:020.22:230.97:165:36Waning Gibbous2Sat
3Sun8:472.98:492.42:350.43:160.87:155:37Waning Gibbous3Sun
4Mon9:232.99:462.23:050.74:120.77:145:39Third Quarter4Mon
5Tue10:003.110:492.03:291.05:130.77:135:40Third Quarter5Tue
6Wed10:413.211:581.93:331.36:140.67:135:41Third Quarter6Wed
7Thu11:273.43:351.57:120.57:125:42Third Quarter7Thu
8Fri1:111.912:203.64:121.78:080.47:105:43Waning Crescent8Fri
9Sat2:192.01:163.86:271.88:590.27:095:44Waning Crescent9Sat
10Sun3:162.22:123.97:511.89:470.07:085:45Waning Crescent10Sun
11Mon4:032.33:054.18:521.710:32-0.17:075:46Waning Crescent11Mon
12Tue4:442.53:554.19:491.511:14-0.37:065:47New Moon12Tue
13Wed5:222.64:444.010:461.311:54-0.37:055:49New Moon13Wed
14Thu5:592.85:343.811:411.07:045:50New Moon14Thu
15Fri6:373.06:263.512:33-0.212:370.77:035:51Waxing Crescent15Fri
16Sat7:153.27:213.11:090.01:330.47:015:52Waxing Crescent16Sat
17Sun7:553.58:212.81:450.32:320.37:005:53Waxing Crescent17Sun
18Mon8:373.69:242.42:200.63:340.26:595:54Waxing Crescent18Mon
19Tue9:243.810:322.22:550.94:390.26:585:55First Quarter19Tue
20Wed10:163.911:452.03:341.35:470.26:575:56First Quarter20Wed
21Thu11:143.94:321.56:530.26:555:57First Quarter21Thu
22Fri1:022.012:173.95:531.77:540.26:545:58Waxing Gibbous22Fri
23Sat2:172.11:213.97:071.78:490.26:535:59Waxing Gibbous23Sat
24Sun3:162.22:213.88:121.69:380.16:516:00Waxing Gibbous24Sun
25Mon3:592.43:153.89:111.510:230.16:506:01Waxing Gibbous25Mon
26Tue4:352.54:043.610:051.311:030.06:496:02Full Moon26Tue
27Wed5:102.64:493.510:551.011:400.16:476:03Full Moon27Wed
28Thu5:432.75:333.311:420.86:466:04Full Moon28Thu
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 neap phase. Tonight's moon is 59% 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 minimum.

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 (59% illuminated). This places Blackslough Landing, San Joaquin River, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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