37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

80°
H -°
L 68°
W
6mph
Low tide
12:18 am

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

TIDE TIMES for Friday, August 28, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 2h 43m at 12:18 am (1.1 ft)
Next high tide : 6:07 am (3.5 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:31 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1913

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:083.06:004.012:06-0.212:000.86:015:49Waxing Crescent1Wed
2Thu7:042.96:414.112:59-0.312:401.16:015:48Waxing Crescent2Thu
3Fri8:022.77:264.11:52-0.31:211.36:025:46Waxing Crescent3Fri
4Sat9:012.58:164.02:47-0.22:061.66:035:45Waxing Crescent4Sat
5Sun10:032.49:113.83:450.03:001.76:045:43First Quarter5Sun
6Mon11:062.310:123.54:460.24:121.86:055:42First Quarter6Mon
7Tue12:102.25:470.35:281.76:065:40First Quarter7Tue
8Wed1:092.26:450.36:371.56:075:39First Quarter8Wed
9Thu12:213.01:582.37:360.37:381.36:085:37Waxing Gibbous9Thu
10Fri1:242.92:372.48:210.28:311.06:095:36Waxing Gibbous10Fri
11Sat2:212.83:122.69:020.39:200.76:105:34Waxing Gibbous11Sat
12Sun3:132.73:442.89:390.310:060.46:115:33Waxing Gibbous12Sun
13Mon4:012.64:153.010:150.510:500.26:125:31Full Moon13Mon
14Tue4:472.64:463.210:500.711:320.16:135:30Full Moon14Tue
15Wed5:312.65:143.411:230.96:145:29Full Moon15Wed
16Thu6:162.65:423.512:140.011:52 AM1.26:155:27Full Moon16Thu
17Fri7:032.56:093.612:550.012:151.46:155:26Waning Gibbous17Fri
18Sat7:522.56:393.61:380.012:261.66:165:24Waning Gibbous18Sat
19Sun8:452.47:163.62:250.112:371.76:175:23Waning Gibbous19Sun
20Mon9:432.28:023.53:170.11:061.86:185:22Waning Gibbous20Mon
21Tue10:422.29:003.44:150.11:521.86:195:20Third Quarter21Tue
22Wed11:412.110:123.25:140.03:361.86:205:19Third Quarter22Wed
23Thu12:342.26:110.06:081.56:215:18Third Quarter23Thu
24Fri1:222.47:03-0.17:191.16:225:16Waning Crescent24Fri
25Sat12:542.82:052.77:510.08:200.66:235:15Waning Crescent25Sat
26Sun2:062.72:453.18:350.19:160.16:245:14Waning Crescent26Sun
27Mon3:122.73:253.59:170.410:10-0.36:265:13Waning Crescent27Mon
28Tue4:122.74:043.99:580.611:02-0.56:275:12New Moon28Tue
29Wed5:082.74:444.210:400.911:53-0.66:285:10New Moon29Wed
30Thu6:032.75:254.311:221.26:295:09New Moon30Thu
31Fri6:572.66:084.312:43-0.612:061.56:305:08Waxing Crescent31Fri
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 100% 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 (100% 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