37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

98°
H -°
L 72°
WNW
9mph
Low tide
11:16 pm

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

TIDE TIMES for Wednesday, September 9, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 5h 19m at 11:16 pm (0.9 ft)
Next high tide (tomorrow) : 5:15 am (3.7 ft)
Sunset today : 7:23 pm
Sunrise tomorrow : 6:42 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Mar 1879

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:503.33:011.66:430.56:446:06First Quarter1Sat
2Sun12:422.011:50 AM3.43:531.77:380.36:436:07First Quarter2Sun
3Mon1:452.012:533.46:471.68:290.26:416:08Waxing Gibbous3Mon
4Tue2:382.11:553.57:541.59:150.06:406:09Waxing Gibbous4Tue
5Wed3:232.32:523.58:521.29:58-0.16:386:10Waxing Gibbous5Wed
6Thu4:032.63:463.59:480.910:38-0.16:376:11Waxing Gibbous6Thu
7Fri4:402.94:383.510:420.611:180.06:356:12Full Moon7Fri
8Sat5:173.25:313.411:350.311:560.26:346:13Full Moon8Sat
9Sun5:543.56:243.212:270.16:326:13Full Moon9Sun
10Mon6:333.77:192.912:330.51:21-0.16:316:14Waning Gibbous10Mon
11Tue7:153.98:172.71:100.82:16-0.16:296:15Waning Gibbous11Tue
12Wed8:014.09:182.51:481.03:14-0.16:286:16Waning Gibbous12Wed
13Thu8:524.010:212.32:301.34:170.06:266:17Third Quarter13Thu
14Fri9:493.811:282.23:231.55:220.16:256:18Third Quarter14Fri
15Sat10:533.74:381.66:250.26:236:19Third Quarter15Sat
16Sun12:362.111:59 AM3.55:571.57:240.26:226:20Third Quarter16Sun
17Mon1:402.21:063.37:081.48:170.16:206:21Waning Crescent17Mon
18Tue2:342.32:083.28:101.29:040.16:196:22Waning Crescent18Tue
19Wed3:172.53:043.19:060.99:460.26:176:23Waning Crescent19Wed
20Thu3:542.73:543.09:580.710:260.26:166:24Waning Crescent20Thu
21Fri4:292.84:412.910:450.411:040.36:146:25New Moon21Fri
22Sat5:023.05:252.811:300.311:400.56:136:26New Moon22Sat
23Sun5:353.16:092.712:130.26:116:27New Moon23Sun
24Mon6:063.26:532.612:150.712:560.16:106:28New Moon24Mon
25Tue6:383.37:392.512:481.01:380.16:086:29Waxing Crescent25Tue
26Wed7:093.38:262.41:171.22:220.26:066:30Waxing Crescent26Wed
27Thu7:413.39:182.21:391.43:110.36:056:30Waxing Crescent27Thu
28Fri8:183.310:132.11:441.54:040.36:036:31Waxing Crescent28Fri
29Sat9:033.211:112.01:581.55:030.36:026:32First Quarter29Sat
30Sun9:583.12:371.66:010.26:006:33First Quarter30Sun
31Mon12:102.011:05 AM3.05:041.66:550.15:596:34First Quarter31Mon
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 2% 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 New Moon (2% 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