37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

63°
H 90°
L 53°
WNW
7mph
High tide
8:36 am

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

TIDE TIMES for Monday, September 14, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 2:27 pm (1.1 ft)
Next high tide : in 9m at 8:36 am (2.8 ft)
Sunset today : 7:15 pm
Sunrise tomorrow : 6:46 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jul 1871

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:364.75:142.811:01-0.410:121.74:537:39Full Moon1Sat
2Sun4:264.96:062.911:52-0.411:101.84:537:39Full Moon2Sun
3Mon5:164.86:562.912:41-0.44:547:38Full Moon3Mon
4Tue6:074.67:462.912:101.71:29-0.44:547:38Waning Gibbous4Tue
5Wed6:594.28:363.01:101.72:16-0.24:557:38Waning Gibbous5Wed
6Thu7:543.89:243.02:121.53:03-0.14:557:38Waning Gibbous6Thu
7Fri8:513.310:123.03:161.43:490.14:567:38Third Quarter7Fri
8Sat9:512.810:573.14:221.24:350.34:577:37Third Quarter8Sat
9Sun10:542.411:423.25:281.05:210.64:577:37Third Quarter9Sun
10Mon12:012.26:300.86:080.94:587:37Third Quarter10Mon
11Tue12:273.31:082.17:270.66:551.14:597:36Waning Crescent11Tue
12Wed1:113.52:142.18:180.47:411.44:597:36Waning Crescent12Wed
13Thu1:553.73:122.39:070.38:261.65:007:35Waning Crescent13Thu
14Fri2:383.94:032.49:530.39:121.75:017:35Waning Crescent14Fri
15Sat3:204.04:482.610:370.29:571.85:017:35New Moon15Sat
16Sun4:004.15:312.711:200.210:411.95:027:34New Moon16Sun
17Mon4:384.26:122.712:020.15:037:33New Moon17Mon
18Tue5:164.16:542.812:420.05:037:33New Moon18Tue
19Wed5:534.07:352.812:101.81:210.05:047:32Waxing Crescent19Wed
20Thu6:313.78:162.812:561.71:590.05:057:32Waxing Crescent20Thu
21Fri7:133.48:562.81:451.62:350.15:067:31Waxing Crescent21Fri
22Sat8:033.19:353.02:421.43:110.35:077:30Waxing Crescent22Sat
23Sun9:032.810:163.23:461.23:470.55:077:30First Quarter23Sun
24Mon10:132.510:583.44:541.04:240.85:087:29First Quarter24Mon
25Tue11:302.311:453.76:000.75:081.15:097:28First Quarter25Tue
26Wed12:482.37:030.56:011.45:107:27First Quarter26Wed
27Thu12:364.02:012.48:020.27:021.65:117:26Waxing Gibbous27Thu
28Fri1:314.43:072.58:580.18:031.75:117:25Waxing Gibbous28Fri
29Sat2:274.64:042.79:52-0.19:041.85:127:25Waxing Gibbous29Sat
30Sun3:214.84:552.910:43-0.210:041.75:137:24Full Moon30Sun
31Mon4:144.85:423.011:32-0.211:031.65:147:23Full Moon31Mon
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 14% 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 Waxing Crescent (14% 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