37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

66°
H -°
L 61°
WNW
5mph
High tide
4:41 am

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

TIDE TIMES for Wednesday, August 26, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 11:47 am (0.2 ft)
Next high tide : in 1h 41m at 4:41 am (3.7 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 6:30 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jun 1916

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:004.06:412.512:26-0.24:447:22New Moon1Thu
2Fri5:373.97:252.51:08-0.14:447:22New Moon2Fri
3Sat6:143.88:092.412:301.81:50-0.14:437:23Waxing Crescent3Sat
4Sun6:513.58:532.41:151.72:31-0.14:437:24Waxing Crescent4Sun
5Mon7:313.29:372.42:051.63:12-0.14:437:24Waxing Crescent5Mon
6Tue8:172.910:182.43:051.53:520.04:427:25Waxing Crescent6Tue
7Wed9:112.510:582.54:121.34:310.24:427:25First Quarter7Wed
8Thu10:182.211:372.75:191.15:100.44:427:26First Quarter8Thu
9Fri11:332.06:220.85:480.64:427:27First Quarter9Fri
10Sat12:163.012:502.07:190.56:270.94:427:27First Quarter10Sat
11Sun12:563.42:032.18:120.27:071.24:427:27Waxing Gibbous11Sun
12Mon1:393.83:092.29:040.07:511.54:427:28Waxing Gibbous12Mon
13Tue2:254.24:082.49:55-0.28:411.74:427:28Waxing Gibbous13Tue
14Wed3:124.55:012.610:46-0.49:361.84:427:29Full Moon14Wed
15Thu4:014.75:522.711:36-0.510:361.84:427:29Full Moon15Thu
16Fri4:514.76:422.712:25-0.64:427:30Full Moon16Fri
17Sat5:434.67:312.81:13-0.54:427:30Waning Gibbous17Sat
18Sun6:374.38:202.812:431.62:00-0.54:427:30Waning Gibbous18Sun
19Mon7:343.89:092.91:491.42:47-0.34:427:30Waning Gibbous19Mon
20Tue8:353.39:563.02:581.23:32-0.14:427:31Third Quarter20Tue
21Wed9:392.810:433.24:081.04:180.24:437:31Third Quarter21Wed
22Thu10:472.311:303.45:180.85:040.54:437:31Third Quarter22Thu
23Fri11:572.16:240.55:520.84:437:31Third Quarter23Fri
24Sat12:163.51:091.97:240.36:401.14:437:31Waning Crescent24Sat
25Sun1:033.72:192.08:180.27:281.44:447:32Waning Crescent25Sun
26Mon1:493.93:212.19:080.18:171.64:447:32Waning Crescent26Mon
27Tue2:344.04:122.39:550.19:051.74:447:32Waning Crescent27Tue
28Wed3:184.14:562.410:400.19:521.84:457:32New Moon28Wed
29Thu3:594.25:372.511:230.110:391.94:457:32New Moon29Thu
30Fri4:394.16:172.612:040.04:467:32New Moon30Fri
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 98% 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 Full Moon (98% 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