37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

58°
H -°
L 54°
W
5mph
High tide
6:45 am

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

TIDE TIMES for Sunday, September 27, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 12:44 pm (0.8 ft)
Next high tide : in 5h 30m at 6:45 am (3.0 ft)
Sunset today : 6:54 pm
Sunrise tomorrow : 6:58 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 1850

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:063.29:092.82:520.13:290.87:175:36Waning Gibbous1Fri
2Sat9:533.210:082.53:370.44:310.77:165:37Third Quarter2Sat
3Sun10:413.311:112.24:240.65:340.67:155:38Third Quarter3Sun
4Mon11:303.35:140.96:340.57:145:39Third Quarter4Mon
5Tue12:172.012:203.36:071.17:310.47:135:40Third Quarter5Tue
6Wed1:232.01:113.47:011.38:230.47:125:41Waning Crescent6Wed
7Thu2:262.12:013.57:531.49:110.37:115:42Waning Crescent7Thu
8Fri3:192.32:493.78:431.49:570.27:105:43Waning Crescent8Fri
9Sat4:042.43:333.79:321.410:400.17:095:44Waning Crescent9Sat
10Sun4:452.54:163.810:191.411:210.17:085:46New Moon10Sun
11Mon5:242.64:563.711:041.37:075:47New Moon11Mon
12Tue6:022.75:353.612:000.011:49 AM1.27:065:48New Moon12Tue
13Wed6:392.86:143.412:380.012:331.17:055:49New Moon13Wed
14Thu7:162.86:553.21:130.11:171.07:035:50Waxing Crescent14Thu
15Fri7:522.97:403.01:470.22:030.97:025:51Waxing Crescent15Fri
16Sat8:293.08:312.72:190.42:550.87:015:52Waxing Crescent16Sat
17Sun9:073.19:312.52:490.63:540.77:005:53Waxing Crescent17Sun
18Mon9:503.310:392.33:180.84:590.56:595:54First Quarter18Mon
19Tue10:393.411:522.23:541.16:040.46:575:55First Quarter19Tue
20Wed11:353.64:581.37:070.26:565:56First Quarter20Wed
21Thu1:042.212:383.86:201.48:050.16:555:57Waxing Gibbous21Thu
22Fri2:112.41:414.07:311.59:00-0.16:535:58Waxing Gibbous22Fri
23Sat3:092.52:424.18:351.49:52-0.26:526:00Waxing Gibbous23Sat
24Sun4:002.83:394.29:351.210:41-0.26:516:01Waxing Gibbous24Sun
25Mon4:473.04:334.110:331.011:27-0.26:496:02Full Moon25Mon
26Tue5:313.15:243.911:280.86:486:03Full Moon26Tue
27Wed6:143.36:153.712:11-0.112:220.66:476:04Full Moon27Wed
28Thu6:563.37:063.312:540.01:150.56:456:05Waning Gibbous28Thu
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 99% 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 (99% 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