37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

76°
H 92°
L 58°
WNW
4mph
High tide
11:33 am

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

TIDE TIMES for Friday, October 2, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 3:25 pm (1.8 ft)
Next high tide : in 5m at 11:33 am (2.3 ft)
Sunset today : 6:47 pm
Sunrise tomorrow : 7:02 am
Moon phase : Third Quarter (59% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1838

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:563.43:473.09:420.09:570.56:085:56Waxing Gibbous1Mon
2Tue3:553.34:253.410:230.210:520.16:095:54Full Moon2Tue
3Wed4:523.25:033.711:030.411:46-0.26:105:53Full Moon3Wed
4Thu5:483.15:424.011:430.76:105:51Full Moon4Thu
5Fri6:432.96:234.112:39-0.412:221.06:115:50Waning Gibbous5Fri
6Sat7:412.77:074.21:32-0.41:031.36:125:48Waning Gibbous6Sat
7Sun8:402.57:554.12:26-0.31:461.56:135:47Waning Gibbous7Sun
8Mon9:412.48:483.93:23-0.12:381.76:145:45Third Quarter8Mon
9Tue10:442.39:483.64:230.13:461.86:155:44Third Quarter9Tue
10Wed11:482.210:533.35:250.25:031.86:165:43Third Quarter10Wed
11Thu12:502.26:240.26:161.66:175:41Third Quarter11Thu
12Fri1:422.37:170.27:191.36:185:40Waning Crescent12Fri
13Sat1:032.92:232.48:040.28:151.06:195:38Waning Crescent13Sat
14Sun2:032.82:592.58:460.29:060.76:205:37Waning Crescent14Sun
15Mon2:572.73:322.79:250.39:520.46:215:35Waning Crescent15Mon
16Tue3:462.64:042.910:020.410:360.26:225:34New Moon16Tue
17Wed4:332.64:343.110:370.611:190.16:235:33New Moon17Wed
18Thu5:182.65:043.311:110.96:245:31New Moon18Thu
19Fri6:022.65:313.512:000.011:42 AM1.16:255:30New Moon19Fri
20Sat6:482.55:583.612:420.012:081.46:265:29Waxing Crescent20Sat
21Sun7:362.56:273.61:240.012:241.66:275:27Waxing Crescent21Sun
22Mon8:282.47:003.62:090.012:301.76:285:26Waxing Crescent22Mon
23Tue9:242.37:433.52:580.112:531.86:295:25Waxing Crescent23Tue
24Wed10:222.28:353.43:530.11:321.86:305:23First Quarter24Wed
25Thu11:202.19:423.24:520.02:391.86:315:22First Quarter25Thu
26Fri12:152.25:490.05:391.66:325:21First Quarter26Fri
27Sat1:032.36:43-0.16:551.26:335:20First Quarter27Sat
28Sun12:242.81:472.67:310.07:580.76:345:18Waxing Gibbous28Sun
29Mon1:392.72:283.08:160.18:550.36:355:17Waxing Gibbous29Mon
30Tue2:482.73:083.48:580.39:50-0.26:365:16Waxing Gibbous30Tue
31Wed3:502.73:473.89:400.610:42-0.56:375:15Full Moon31Wed
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 59% 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 (59% 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