37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

58°
H 80°
L 59°
WSW
3mph
Low tide
5:36 am

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

TIDE TIMES for Thursday, September 3, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 1h 46m at 5:36 am (0.4 ft)
Next high tide : 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 - Jan 1903

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:342.66:403.41:23-0.11:091.47:214:56Waxing Crescent1Thu
2Fri8:152.67:183.12:01-0.11:561.47:224:57Waxing Crescent2Fri
3Sat8:562.78:012.82:370.02:491.37:224:58Waxing Crescent3Sat
4Sun9:372.78:532.63:130.23:481.27:224:58Waxing Crescent4Sun
5Mon10:182.99:582.33:490.34:531.07:224:59First Quarter5Mon
6Tue11:013.011:142.24:260.65:570.87:225:00First Quarter6Tue
7Wed11:463.35:100.86:580.57:225:01First Quarter7Wed
8Thu12:312.112:363.66:031.07:540.37:225:02Waxing Gibbous8Thu
9Fri1:432.21:283.97:021.28:480.07:225:03Waxing Gibbous9Fri
10Sat2:492.32:224.28:011.39:41-0.27:225:04Waxing Gibbous10Sat
11Sun3:472.53:154.49:001.410:31-0.47:215:05Waxing Gibbous11Sun
12Mon4:392.74:074.69:581.411:21-0.57:215:06Full Moon12Mon
13Tue5:282.94:584.510:571.37:215:07Full Moon13Tue
14Wed6:163.15:494.312:08-0.511:55 AM1.27:215:08Full Moon14Wed
15Thu7:043.26:414.012:54-0.412:531.17:205:09Waning Gibbous15Thu
16Fri7:523.27:353.61:39-0.31:511.07:205:10Waning Gibbous16Fri
17Sat8:393.38:313.12:24-0.12:510.97:205:11Waning Gibbous17Sat
18Sun9:283.39:302.73:090.13:540.87:195:12Third Quarter18Sun
19Mon10:163.310:312.43:560.44:570.77:195:13Third Quarter19Mon
20Tue11:053.311:352.14:440.76:000.67:185:14Third Quarter20Tue
21Wed11:543.45:360.97:000.57:185:15Third Quarter21Wed
22Thu12:422.012:453.56:291.17:540.47:175:16Waning Crescent22Thu
23Fri1:472.01:353.67:221.28:450.37:175:17Waning Crescent23Fri
24Sat2:472.12:233.78:121.39:320.27:165:18Waning Crescent24Sat
25Sun3:372.33:083.89:021.410:160.17:165:20Waning Crescent25Sun
26Mon4:212.43:513.89:501.410:580.17:155:21New Moon26Mon
27Tue5:022.64:323.810:361.411:380.07:145:22New Moon27Tue
28Wed5:412.75:113.711:221.37:145:23New Moon28Wed
29Thu6:202.75:503.612:170.012:071.27:135:24New Moon29Thu
30Fri6:582.86:283.412:540.012:511.17:125:25Waxing Crescent30Fri
31Sat7:352.97:083.11:290.11:361.17:115:26Waxing Crescent31Sat
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