37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

52°
H 68°
L 43°
W
6mph
High tide
11:18 am

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

TIDE TIMES for Sunday, November 1, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 4:49 pm (1.5 ft)
Next high tide : in 5h 10m at 11:18 am (2.3 ft)
Sunset today : 5:06 pm
Sunrise tomorrow : 6:31 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 1791

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:142.73:504.29:461.310:53-0.17:175:36New Moon1Tue
2Wed5:002.94:394.110:401.211:38-0.17:165:37New Moon2Wed
3Thu5:433.05:263.911:331.17:155:38New Moon3Thu
4Fri6:253.16:113.712:20-0.112:241.07:145:39New Moon4Fri
5Sat7:053.16:573.31:000.01:130.97:135:40Waxing Crescent5Sat
6Sun7:463.17:443.01:400.22:020.87:125:42Waxing Crescent6Sun
7Mon8:273.18:322.72:180.42:530.87:115:43Waxing Crescent7Mon
8Tue9:083.19:252.42:570.63:470.77:105:44Waxing Crescent8Tue
9Wed9:513.110:212.23:370.84:450.77:095:45First Quarter9Wed
10Thu10:363.111:222.14:201.05:440.77:085:46First Quarter10Thu
11Fri11:243.25:111.26:420.67:075:47First Quarter11Fri
12Sat12:262.012:163.36:071.37:370.57:065:48First Quarter12Sat
13Sun1:302.11:103.47:041.48:280.47:045:49Waxing Gibbous13Sun
14Mon2:282.22:023.57:581.49:150.27:035:50Waxing Gibbous14Mon
15Tue3:192.32:523.68:501.310:000.17:025:51Waxing Gibbous15Tue
16Wed4:032.53:393.79:401.210:420.07:015:53Waxing Gibbous16Wed
17Thu4:442.74:253.810:301.111:230.07:005:54Full Moon17Thu
18Fri5:242.95:113.711:190.96:585:55Full Moon18Fri
19Sat6:023.15:583.612:020.012:080.76:575:56Full Moon19Sat
20Sun6:423.36:473.412:410.112:590.66:565:57Waning Gibbous20Sun
21Mon7:223.47:403.11:190.31:510.46:545:58Waning Gibbous21Mon
22Tue8:053.58:372.81:570.52:480.46:535:59Waning Gibbous22Tue
23Wed8:523.69:392.62:380.73:490.36:526:00Waning Gibbous23Wed
24Thu9:443.710:452.43:240.94:540.36:506:01Third Quarter24Thu
25Fri10:403.711:532.34:211.25:590.26:496:02Third Quarter25Fri
26Sat11:423.75:301.37:010.26:486:03Third Quarter26Sat
27Sun1:012.312:453.76:391.37:590.16:466:04Waning Crescent27Sun
28Mon2:052.41:473.77:431.38:520.16:456:05Waning Crescent28Mon
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 50% 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 (50% 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