37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

55°
H -°
L 52°
WSW
5mph
Low tide
7:48 am

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

TIDE TIMES for Saturday, September 5, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 5h 46m at 7:48 am (0.3 ft)
Next high tide : 2:00 pm (2.2 ft)
Sunset today : 7:29 pm
Sunrise tomorrow : 6:39 am
Moon phase : Third Quarter (34% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Mar 1889

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:192.95:073.811:110.911:57-0.16:365:59New Moon1Fri
2Sat5:593.05:543.612:020.86:356:00New Moon2Sat
3Sun6:383.16:423.312:370.112:520.66:336:01Waxing Crescent3Sun
4Mon7:173.17:303.01:160.21:400.56:326:02Waxing Crescent4Mon
5Tue7:553.18:192.71:540.42:290.46:306:03Waxing Crescent5Tue
6Wed8:343.19:122.42:310.73:210.46:296:04Waxing Crescent6Wed
7Thu9:143.110:082.23:100.94:160.46:276:05First Quarter7Thu
8Fri9:583.111:082.13:521.25:140.56:266:06First Quarter8Fri
9Sat10:463.14:431.46:130.56:246:07First Quarter9Sat
10Sun12:112.011:40 AM3.15:441.57:100.46:236:08First Quarter10Sun
11Mon1:142.012:383.26:461.58:030.36:216:09Waxing Gibbous11Mon
12Tue2:122.11:363.27:421.58:520.26:206:10Waxing Gibbous12Tue
13Wed3:022.32:303.38:351.49:370.16:186:11Waxing Gibbous13Wed
14Thu3:452.43:203.49:251.210:190.06:176:12Waxing Gibbous14Thu
15Fri4:242.64:073.410:141.011:000.06:156:13Full Moon15Fri
16Sat5:002.84:543.411:010.711:380.16:146:14Full Moon16Sat
17Sun5:363.05:413.311:490.56:126:15Full Moon17Sun
18Mon6:113.26:303.112:150.212:370.36:116:16Full Moon18Mon
19Tue6:473.37:222.912:510.41:260.16:096:17Waning Gibbous19Tue
20Wed7:263.58:192.71:260.62:190.06:086:17Waning Gibbous20Wed
21Thu8:083.69:202.52:020.93:160.06:066:18Waning Gibbous21Thu
22Fri8:563.610:252.32:401.14:190.06:056:19Third Quarter22Fri
23Sat9:523.611:322.23:321.45:240.06:036:20Third Quarter23Sat
24Sun10:553.64:481.56:280.06:026:21Third Quarter24Sun
25Mon12:392.212:033.56:071.57:280.06:006:22Third Quarter25Mon
26Tue1:432.31:123.57:171.48:220.05:596:23Waning Crescent26Tue
27Wed2:382.52:163.48:201.29:120.05:576:24Waning Crescent27Wed
28Thu3:252.73:143.39:170.99:580.05:556:25Waning Crescent28Thu
29Fri4:062.94:073.210:110.610:410.15:546:26New Moon29Fri
30Sat4:453.04:563.111:010.411:220.25:526:27New Moon30Sat
31Sun5:213.15:433.011:480.25:516:28New Moon31Sun
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 34% 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 (34% 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