37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

65°
H 100°
L 59°
WNW
6mph
Low tide
10:37 am

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

TIDE TIMES for Thursday, October 8, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 6h 00m at 10:37 am (0.3 ft)
Next high tide : 4:44 pm (3.1 ft)
Sunset today : 6:38 pm
Sunrise tomorrow : 7:08 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Nov 1829

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:082.47:543.32:49-0.11:591.56:385:14Waxing Crescent1Sun
2Mon10:012.48:493.13:390.03:101.56:395:13First Quarter2Mon
3Tue10:552.49:582.94:340.04:391.46:405:12First Quarter3Tue
4Wed11:482.511:162.75:290.05:551.26:415:10First Quarter4Wed
5Thu12:392.76:230.17:000.86:435:09First Quarter5Thu
6Fri12:332.71:283.07:150.28:000.56:445:08Waxing Gibbous6Fri
7Sat1:442.62:163.38:040.38:560.16:455:08Waxing Gibbous7Sat
8Sun2:492.73:013.78:520.59:49-0.26:465:07Waxing Gibbous8Sun
9Mon3:492.83:464.09:390.710:41-0.46:475:06Full Moon9Mon
10Tue4:442.84:304.210:260.811:31-0.56:485:05Full Moon10Tue
11Wed5:372.85:144.211:141.06:495:04Full Moon11Wed
12Thu6:292.85:584.212:21-0.512:031.26:505:03Waning Gibbous12Thu
13Fri7:202.86:444.01:09-0.512:531.36:515:02Waning Gibbous13Fri
14Sat8:132.77:313.71:58-0.41:461.46:525:02Waning Gibbous14Sat
15Sun9:062.68:223.32:47-0.32:431.46:535:01Waning Gibbous15Sun
16Mon9:582.59:173.03:37-0.13:451.46:545:00Third Quarter16Mon
17Tue10:492.510:172.64:280.04:511.36:564:59Third Quarter17Tue
18Wed11:392.511:192.45:200.15:551.16:574:59Third Quarter18Wed
19Thu12:272.66:100.26:540.86:584:58Third Quarter19Thu
20Fri12:232.21:112.76:570.37:480.66:594:58Waning Crescent20Fri
21Sat1:262.11:542.97:420.58:370.37:004:57Waning Crescent21Sat
22Sun2:252.12:343.18:250.69:240.27:014:57Waning Crescent22Sun
23Mon3:182.23:123.49:070.810:080.07:024:56Waning Crescent23Mon
24Tue4:072.43:493.69:471.010:52-0.17:034:56New Moon24Tue
25Wed4:542.54:243.710:271.211:35-0.27:044:55New Moon25Wed
26Thu5:392.64:593.811:061.37:054:55New Moon26Thu
27Fri6:242.65:333.812:17-0.311:45 AM1.47:064:54New Moon27Fri
28Sat7:112.66:093.812:59-0.312:241.57:074:54Waxing Crescent28Sat
29Sun7:592.66:493.61:42-0.31:081.57:084:54Waxing Crescent29Sun
30Mon8:482.67:373.42:26-0.32:031.57:094:54Waxing Crescent30Mon
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 4% 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 Waning Crescent (4% 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