37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

44°
H 72°
L 42°
WSW
1mph
Low tide
8:56 am

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

TIDE TIMES for Friday, November 6, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 5h 05m at 8:56 am (0.6 ft)
Next high tide : 3:07 pm (3.4 ft)
Sunset today : 5:01 pm
Sunrise tomorrow : 6:37 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 1778

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:382.98:163.02:230.02:430.97:175:36Waxing Crescent1Sun
2Mon9:203.19:202.62:590.23:480.87:165:37Waxing Crescent2Mon
3Tue10:033.310:312.33:370.54:570.67:155:38First Quarter3Tue
4Wed10:513.511:472.24:180.86:050.47:145:40First Quarter4Wed
5Thu11:443.75:111.27:090.27:135:41First Quarter5Thu
6Fri1:042.112:414.06:151.48:090.17:125:42Waxing Gibbous6Fri
7Sat2:162.21:404.17:211.69:05-0.17:115:43Waxing Gibbous7Sat
8Sun3:192.42:384.38:241.69:57-0.17:105:44Waxing Gibbous8Sun
9Mon4:122.63:324.39:241.610:46-0.27:095:45Waxing Gibbous9Mon
10Tue4:582.74:234.310:211.511:32-0.27:085:46Full Moon10Tue
11Wed5:412.85:124.111:151.37:075:47Full Moon11Wed
12Thu6:212.95:583.812:15-0.112:071.17:055:48Full Moon12Thu
13Fri7:012.96:443.512:56-0.112:581.07:045:49Waning Gibbous13Fri
14Sat7:413.07:323.11:350.11:480.97:035:51Waning Gibbous14Sat
15Sun8:203.08:212.82:130.22:400.87:025:52Waning Gibbous15Sun
16Mon9:003.09:142.42:500.53:330.77:015:53Waning Gibbous16Mon
17Tue9:403.010:112.23:280.74:310.66:595:54Third Quarter17Tue
18Wed10:223.011:132.04:081.05:300.66:585:55Third Quarter18Wed
19Thu11:073.14:531.26:300.56:575:56Third Quarter19Thu
20Fri12:192.011:57 AM3.25:481.47:260.56:565:57Third Quarter20Fri
21Sat1:262.012:513.46:471.68:190.46:545:58Waning Crescent21Sat
22Sun2:282.11:453.57:421.69:080.26:535:59Waning Crescent22Sun
23Mon3:202.32:373.78:351.69:540.16:526:00Waning Crescent23Mon
24Tue4:042.43:253.89:251.510:380.06:506:01Waning Crescent24Tue
25Wed4:442.64:113.810:151.311:19-0.16:496:02New Moon25Wed
26Thu5:222.74:563.811:041.111:58-0.16:486:03New Moon26Thu
27Fri6:002.95:433.611:530.96:466:04New Moon27Fri
28Sat6:373.06:313.412:36-0.112:430.76:456:05New Moon28Sat
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 6% 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 Waning Crescent (6% 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