37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

56°
H 98°
L 68°
NW
2mph
Low tide
10:30 am

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

TIDE TIMES for Tuesday, September 8, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 2h 59m at 10:30 am (0.0 ft)
Next high tide : 4:41 pm (2.7 ft)
Sunset today : 7:24 pm
Sunrise tomorrow : 6:41 am
Moon phase : Waning Crescent (7% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jan 1882

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:302.22:554.08:411.410:08-0.17:295:04Waxing Gibbous1Sun
2Mon4:202.43:404.19:321.510:53-0.17:295:05Full Moon2Mon
3Tue5:032.54:234.110:211.511:36-0.17:295:06Full Moon3Tue
4Wed5:442.65:043.911:101.57:295:06Full Moon4Wed
5Thu6:242.65:433.812:16-0.111:57 AM1.47:295:07Full Moon5Thu
6Fri7:042.76:233.512:55-0.112:441.47:295:08Waning Gibbous6Fri
7Sat7:432.77:033.21:33-0.11:311.37:295:09Waning Gibbous7Sat
8Sun8:232.77:452.92:100.02:211.27:295:10Waning Gibbous8Sun
9Mon9:022.78:322.62:450.23:151.17:295:11Waning Gibbous9Mon
10Tue9:412.89:272.33:190.44:141.07:285:12Third Quarter10Tue
11Wed10:212.910:322.13:510.65:160.87:285:13Third Quarter11Wed
12Thu11:023.111:432.04:200.96:160.77:285:14Third Quarter12Thu
13Fri11:473.34:501.17:130.57:285:15Third Quarter13Fri
14Sat12:552.012:363.65:441.38:070.37:275:16Waning Crescent14Sat
15Sun2:032.11:283.96:541.58:580.17:275:17Waning Crescent15Sun
16Mon3:032.32:214.17:571.69:48-0.17:275:18Waning Crescent16Mon
17Tue3:562.53:134.38:571.510:35-0.37:265:19Waning Crescent17Tue
18Wed4:442.74:054.49:571.411:21-0.47:265:20New Moon18Wed
19Thu5:292.84:564.310:561.37:255:21New Moon19Thu
20Fri6:133.05:474.112:06-0.411:54 AM1.17:255:22New Moon20Fri
21Sat6:573.26:403.812:49-0.412:530.97:245:23Waxing Crescent21Sat
22Sun7:433.37:363.41:32-0.21:520.77:245:25Waxing Crescent22Sun
23Mon8:293.58:353.02:150.02:530.67:235:26Waxing Crescent23Mon
24Tue9:173.69:372.62:580.33:570.57:235:27First Quarter24Tue
25Wed10:073.610:432.33:430.65:030.57:225:28First Quarter25Wed
26Thu10:583.711:512.14:340.96:080.47:215:29First Quarter26Thu
27Fri11:523.75:301.17:090.37:215:30First Quarter27Fri
28Sat1:022.012:473.86:301.38:060.37:205:31Waxing Gibbous28Sat
29Sun2:102.11:423.87:281.48:580.27:195:32Waxing Gibbous29Sun
30Mon3:082.22:343.88:231.59:450.27:185:33Waxing Gibbous30Mon
31Tue3:562.43:223.89:161.410:280.17:175:35Waxing Gibbous31Tue
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 7% 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 Waning Crescent (7% 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