37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

61°
H 81°
L 56°
ESE
3mph
High tide
10:29 am

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

TIDE TIMES for Wednesday, September 2, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 3:04 pm (1.5 ft)
Next high tide : in 2h 17m at 10:29 am (2.5 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 6:36 am
Moon phase : Third Quarter (67% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Mar 1905

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:142.31:523.57:481.38:570.26:375:58Waning Crescent1Wed
2Thu3:082.42:463.68:441.29:440.26:365:59Waning Crescent2Thu
3Fri3:532.63:353.59:361.110:280.16:346:00Waning Crescent3Fri
4Sat4:322.74:213.510:241.011:090.26:336:01New Moon4Sat
5Sun5:102.85:033.411:110.911:480.26:326:02New Moon5Sun
6Mon5:462.95:453.311:550.76:306:03New Moon6Mon
7Tue6:212.96:273.112:250.312:390.66:296:04New Moon7Tue
8Wed6:563.07:102.91:010.41:220.66:276:05Waxing Crescent8Wed
9Thu7:313.07:542.71:360.52:060.56:266:06Waxing Crescent9Thu
10Fri8:053.08:422.52:090.72:530.56:246:07Waxing Crescent10Fri
11Sat8:403.09:352.32:380.93:440.56:236:08Waxing Crescent11Sat
12Sun9:193.010:332.23:021.14:410.56:216:09First Quarter12Sun
13Mon10:043.111:362.13:191.35:420.46:206:10First Quarter13Mon
14Tue10:593.24:181.46:400.36:186:11First Quarter14Tue
15Wed12:402.112:033.26:071.47:360.26:176:12First Quarter15Wed
16Thu1:412.31:093.47:161.48:270.16:156:13Waxing Gibbous16Thu
17Fri2:352.42:123.58:161.29:160.06:146:14Waxing Gibbous17Fri
18Sat3:222.73:103.69:131.010:03-0.16:126:15Waxing Gibbous18Sat
19Sun4:063.04:063.610:080.710:480.06:116:16Full Moon19Sun
20Mon4:493.25:003.611:020.411:320.16:096:17Full Moon20Mon
21Tue5:313.55:533.511:560.16:086:18Full Moon21Tue
22Wed6:133.76:473.312:150.212:49-0.16:066:18Waning Gibbous22Wed
23Thu6:583.87:433.012:590.41:43-0.16:046:19Waning Gibbous23Thu
24Fri7:443.88:412.81:430.62:38-0.16:036:20Waning Gibbous24Fri
25Sat8:343.79:402.52:300.93:36-0.16:016:21Waning Gibbous25Sat
26Sun9:273.610:422.43:231.14:370.06:006:22Third Quarter26Sun
27Mon10:243.411:442.34:241.25:380.15:586:23Third Quarter27Mon
28Tue11:243.25:301.36:370.25:576:24Third Quarter28Tue
29Wed12:472.312:273.16:351.27:320.25:556:25Third Quarter29Wed
30Thu1:442.31:283.07:351.18:220.25:546:26Waning Crescent30Thu
31Fri2:342.42:243.08:301.09:080.25:526:27Waning 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 transitional phase. Tonight's moon is 67% 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 shifting between spring and neap.

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 (67% illuminated). This places Blackslough Landing, San Joaquin River, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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