37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

58°
H 77°
L 47°
SW
10mph
Low tide
11:56 am

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

TIDE TIMES for Saturday, October 10, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 3h 41m at 11:56 am (0.7 ft)
Next high tide : 5:56 pm (3.6 ft)
Sunset today : 6:35 pm
Sunrise tomorrow : 7:09 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1825

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:222.57:303.42:170.31:281.56:085:56Waning Gibbous1Sat
2Sun9:142.48:093.33:050.31:361.66:095:54Waning Gibbous2Sun
3Mon10:102.28:583.33:590.32:041.66:105:53Third Quarter3Mon
4Tue11:082.210:003.14:570.33:051.66:115:51Third Quarter4Tue
5Wed12:042.25:540.25:371.56:115:50Third Quarter5Wed
6Thu12:572.36:470.26:501.36:125:48Third Quarter6Thu
7Fri12:263.01:452.67:360.17:510.96:135:47Waning Crescent7Fri
8Sat1:363.02:292.98:220.28:470.56:145:45Waning Crescent8Sat
9Sun2:413.03:113.39:060.39:410.26:155:44Waning Crescent9Sun
10Mon3:403.03:523.69:490.510:34-0.26:165:42New Moon10Mon
11Tue4:363.14:334.010:320.711:27-0.46:175:41New Moon11Tue
12Wed5:313.05:154.211:150.96:185:39New Moon12Wed
13Thu6:252.96:004.312:19-0.512:001.16:195:38Waxing Crescent13Thu
14Fri7:202.86:474.31:11-0.512:461.36:205:37Waxing Crescent14Fri
15Sat8:162.77:374.12:04-0.41:361.46:215:35Waxing Crescent15Sat
16Sun9:132.58:333.82:59-0.22:341.56:225:34Waxing Crescent16Sun
17Mon10:122.49:333.43:55-0.13:411.56:235:32First Quarter17Mon
18Tue11:102.410:363.14:530.14:531.46:245:31First Quarter18Tue
19Wed12:062.45:490.16:031.26:255:30First Quarter19Wed
20Thu12:572.56:420.27:061.06:265:28Waxing Gibbous20Thu
21Fri12:462.61:432.67:300.38:010.76:275:27Waxing Gibbous21Fri
22Sat1:482.42:242.88:140.48:520.46:285:26Waxing Gibbous22Sat
23Sun2:442.43:013.08:550.59:380.26:295:24Waxing Gibbous23Sun
24Mon3:352.43:373.29:350.710:220.16:305:23Waxing Gibbous24Mon
25Tue4:222.54:113.410:130.911:050.06:315:22Full Moon25Tue
26Wed5:072.54:443.510:511.111:47-0.16:325:21Full Moon26Wed
27Thu5:512.65:163.611:271.36:335:19Full Moon27Thu
28Fri6:352.65:473.612:29-0.112:011.46:345:18Full Moon28Fri
29Sat7:212.56:183.61:11-0.112:311.56:355:17Waning Gibbous29Sat
30Sun8:092.46:523.51:54-0.112:541.66:365:16Waning Gibbous30Sun
31Mon8:592.37:333.32:390.01:201.66:375:15Waning Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

Common Questions About Blackslough Landing, San Joaquin River, CA Tides

Collapse All
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 0% 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 New Moon (0% 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