37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

56°
H 80°
L 59°
SW
2mph
High tide
11:37 am

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

TIDE TIMES for Thursday, September 3, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 3:31 pm (1.7 ft)
Next high tide : in 5h 42m at 11:37 am (2.3 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (56% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Mar 1902

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:123.111:152.14:021.25:270.66:385:58Third Quarter1Sat
2Sun11:033.14:571.36:260.56:365:59Third Quarter2Sun
3Mon12:162.011:58 AM3.15:591.47:210.46:356:00Third Quarter3Mon
4Tue1:172.112:563.26:591.48:110.36:336:01Waning Crescent4Tue
5Wed2:132.21:523.27:551.38:580.26:326:02Waning Crescent5Wed
6Thu3:022.32:443.38:471.19:420.26:316:03Waning Crescent6Thu
7Fri3:442.63:333.49:371.010:240.16:296:04Waning Crescent7Fri
8Sat4:242.84:213.410:260.811:030.16:286:05New Moon8Sat
9Sun5:013.05:073.411:140.611:420.26:266:06New Moon9Sun
10Mon5:383.25:553.312:020.46:256:07New Moon10Mon
11Tue6:163.46:443.112:200.412:510.26:236:08New Moon11Tue
12Wed6:553.67:372.912:570.61:410.16:226:09Waxing Crescent12Wed
13Thu7:373.78:332.71:340.82:350.16:206:10Waxing Crescent13Thu
14Fri8:243.79:332.52:141.03:330.16:196:11Waxing Crescent14Fri
15Sat9:173.710:372.43:021.14:360.16:176:12First Quarter15Sat
16Sun10:173.611:422.34:051.35:400.16:166:13First Quarter16Sun
17Mon11:223.55:201.36:410.16:146:14First Quarter17Mon
18Tue12:462.312:293.46:321.37:380.16:136:14Waxing Gibbous18Tue
19Wed1:472.41:343.37:371.18:310.16:116:15Waxing Gibbous19Wed
20Thu2:402.62:353.38:370.99:190.16:096:16Waxing Gibbous20Thu
21Fri3:272.83:313.29:320.710:040.26:086:17Waxing Gibbous21Fri
22Sat4:093.04:213.210:240.510:470.36:066:18Full Moon22Sat
23Sun4:483.25:083.111:120.311:280.46:056:19Full Moon23Sun
24Mon5:263.35:543.011:590.26:036:20Full Moon24Mon
25Tue6:023.46:392.912:080.612:430.16:026:21Full Moon25Tue
26Wed6:393.47:252.712:460.71:270.16:006:22Waning Gibbous26Wed
27Thu7:153.38:122.51:240.92:120.25:596:23Waning Gibbous27Thu
28Fri7:533.39:012.42:011.13:000.25:576:24Waning Gibbous28Fri
29Sat8:333.19:532.22:401.23:510.35:566:25Waning Gibbous29Sat
30Sun9:183.010:472.13:241.34:460.35:546:26Third Quarter30Sun
31Mon10:102.911:442.14:231.45:420.35:536:27Third 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 neap phase. Tonight's moon is 56% 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 minimum.

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 (56% illuminated). This places Blackslough Landing, San Joaquin River, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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