37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

57°
H 95°
L 57°
WNW
2mph
High tide
10:28 am

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

TIDE TIMES for Thursday, October 1, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 2:37 pm (1.7 ft)
Next high tide : in 3h 38m at 10:28 am (2.4 ft)
Sunset today : 6:48 pm
Sunrise tomorrow : 7:01 am
Moon phase : Waning Gibbous (70% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jun 1841

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:473.84:112.29:59-0.29:161.44:517:29Waxing Gibbous1Tue
2Wed3:284.04:592.310:45-0.210:011.64:507:29Full Moon2Wed
3Thu4:084.15:442.411:29-0.210:451.74:507:30Full Moon3Thu
4Fri4:464.16:272.512:12-0.24:507:31Full Moon4Fri
5Sat5:244.07:112.512:54-0.14:507:31Full Moon5Sat
6Sun6:013.97:552.512:141.81:36-0.14:497:32Waning Gibbous6Sun
7Mon6:393.68:392.412:591.82:17-0.14:497:32Waning Gibbous7Mon
8Tue7:193.39:222.41:481.72:58-0.14:497:33Waning Gibbous8Tue
9Wed8:023.010:042.42:451.63:380.04:497:33Waning Gibbous9Wed
10Thu8:542.610:442.53:501.44:170.14:497:34Third Quarter10Thu
11Fri9:562.311:232.74:581.24:560.34:497:34Third Quarter11Fri
12Sat11:092.16:020.95:330.64:497:35Third Quarter12Sat
13Sun12:012.912:252.07:000.66:100.94:497:35Third Quarter13Sun
14Mon12:403.31:402.07:540.46:481.24:497:36Waning Crescent14Mon
15Tue1:223.72:482.28:460.17:291.54:497:36Waning Crescent15Tue
16Wed2:064.03:492.39:37-0.18:161.74:497:37Waning Crescent16Wed
17Thu2:534.44:432.510:27-0.39:101.84:497:37New Moon17Thu
18Fri3:414.75:342.611:18-0.410:091.94:497:37New Moon18Fri
19Sat4:314.86:242.712:07-0.54:497:37New Moon19Sat
20Sun5:224.77:132.812:55-0.54:497:38New Moon20Sun
21Mon6:154.48:012.812:171.71:42-0.54:497:38Waxing Crescent21Mon
22Tue7:104.08:492.91:231.52:28-0.44:507:38Waxing Crescent22Tue
23Wed8:103.59:373.02:311.33:13-0.24:507:38Waxing Crescent23Wed
24Thu9:143.010:233.23:411.13:580.14:507:38First Quarter24Thu
25Fri10:212.511:103.34:510.84:440.44:507:39First Quarter25Fri
26Sat11:312.111:563.55:590.65:310.74:517:39First Quarter26Sat
27Sun12:432.07:020.46:191.04:517:39Waxing Gibbous27Sun
28Mon12:433.71:562.07:590.27:081.34:527:39Waxing Gibbous28Mon
29Tue1:313.93:032.18:510.27:571.64:527:39Waxing Gibbous29Tue
30Wed2:174.03:582.39:390.18:461.84:527:39Waxing Gibbous30Wed
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 transitional phase. Tonight's moon is 70% 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 shifting between spring and neap.

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 Gibbous (70% illuminated). This places Blackslough Landing, San Joaquin River, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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