37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

64°
H 98°
L 64°
WNW
5mph
Low tide
11:47 am

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

TIDE TIMES for Wednesday, August 26, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 7h 02m at 11:47 am (0.2 ft)
Next high tide : 5:51 pm (2.7 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 6:30 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 1916

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:163.24:452.910:470.110:530.45:506:28New Moon1Sat
2Sun4:543.45:352.811:35-0.111:320.75:496:29New Moon2Sun
3Mon5:303.66:232.712:22-0.25:476:30New Moon3Mon
4Tue6:063.77:112.612:110.91:07-0.25:466:31Waxing Crescent4Tue
5Wed6:433.67:592.512:491.11:52-0.15:446:32Waxing Crescent5Wed
6Thu7:203.68:492.31:261.32:400.05:436:33Waxing Crescent6Thu
7Fri8:003.49:412.22:031.53:300.25:416:34Waxing Crescent7Fri
8Sat8:453.310:352.12:431.64:240.25:406:34First Quarter8Sat
9Sun9:383.111:312.03:411.65:210.35:386:35First Quarter9Sun
10Mon10:382.94:591.56:160.25:376:36First Quarter10Mon
11Tue12:262.011:43 AM2.76:101.47:060.25:356:37First Quarter11Tue
12Wed1:162.112:492.67:131.17:520.25:346:38Waxing Gibbous12Wed
13Thu2:002.21:522.58:080.88:330.25:326:39Waxing Gibbous13Thu
14Fri2:402.52:502.58:590.59:130.35:316:40Waxing Gibbous14Fri
15Sat3:162.83:442.69:480.29:500.55:306:41Waxing Gibbous15Sat
16Sun3:503.14:352.610:350.010:260.85:286:42Full Moon16Sun
17Mon4:243.55:252.711:21-0.211:021.05:276:43Full Moon17Mon
18Tue4:583.86:162.712:08-0.45:256:44Full Moon18Tue
19Wed5:354.07:082.612:56-0.55:246:45Full Moon19Wed
20Thu6:154.18:032.512:121.41:46-0.55:236:45Waning Gibbous20Thu
21Fri7:014.18:592.412:501.52:39-0.45:216:46Waning Gibbous21Fri
22Sat7:533.99:572.31:381.63:36-0.35:206:47Waning Gibbous22Sat
23Sun8:543.610:552.32:481.64:34-0.25:196:48Third Quarter23Sun
24Mon10:033.311:522.34:171.55:32-0.25:176:49Third Quarter24Mon
25Tue11:162.95:401.26:27-0.15:166:50Third Quarter25Tue
26Wed12:452.512:302.66:520.97:170.05:156:51Waning Crescent26Wed
27Thu1:342.71:412.47:550.58:040.25:146:52Waning Crescent27Thu
28Fri2:183.02:462.48:520.28:480.45:126:53Waning Crescent28Fri
29Sat3:003.23:452.39:45-0.19:310.75:116:54Waning Crescent29Sat
30Sun3:393.54:372.410:33-0.210:130.95:106:55New Moon30Sun
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 98% 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 (98% 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