37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

66°
H 87°
L 49°
WNW
2mph
High tide
10:05 am

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

TIDE TIMES for Thursday, October 15, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 2:56 pm (1.7 ft)
Next high tide : in 46m at 10:05 am (2.3 ft)
Sunset today : 6:28 pm
Sunrise tomorrow : 7:14 am
Moon phase : Waxing Crescent (24% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Dec 1816

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:092.13:013.38:520.810:000.07:104:53Waxing Gibbous1Sun
2Mon4:012.23:363.59:301.110:43-0.17:114:53Waxing Gibbous2Mon
3Tue4:492.34:093.810:071.311:26-0.27:124:53Full Moon3Tue
4Wed5:352.44:423.910:431.57:134:53Full Moon4Wed
5Thu6:222.55:154.012:09-0.311:16 AM1.77:144:53Full Moon5Thu
6Fri7:092.55:494.012:52-0.311:48 AM1.87:154:53Waning Gibbous6Fri
7Sat7:582.56:283.91:35-0.312:221.87:164:53Waning Gibbous7Sat
8Sun8:482.47:123.62:20-0.31:101.87:164:53Waning Gibbous8Sun
9Mon9:372.48:063.33:07-0.32:251.77:174:53Waning Gibbous9Mon
10Tue10:262.59:113.03:55-0.33:561.57:184:53Third Quarter10Tue
11Wed11:132.610:282.64:44-0.15:181.27:194:53Third Quarter11Wed
12Thu11:592.811:502.35:330.06:290.87:204:53Third Quarter12Thu
13Fri12:453.26:220.37:320.47:204:54Third Quarter13Fri
14Sat1:092.21:303.57:090.58:300.07:214:54Waning Crescent14Sat
15Sun2:222.22:163.97:570.89:24-0.37:224:54Waning Crescent15Sun
16Mon3:282.33:024.28:441.110:16-0.57:224:55Waning Crescent16Mon
17Tue4:272.43:474.49:331.411:06-0.57:234:55New Moon17Tue
18Wed5:202.54:324.510:231.511:55-0.57:244:55New Moon18Wed
19Thu6:102.65:164.511:141.77:244:56New Moon19Thu
20Fri6:592.76:014.312:42-0.512:061.77:254:56Waxing Crescent20Fri
21Sat7:472.66:464.01:27-0.412:591.77:254:57Waxing Crescent21Sat
22Sun8:352.67:333.62:13-0.31:541.67:264:57Waxing Crescent22Sun
23Mon9:222.58:223.22:57-0.22:531.57:264:58Waxing Crescent23Mon
24Tue10:082.59:172.73:42-0.13:571.47:274:58First Quarter24Tue
25Wed10:522.510:172.34:270.15:041.27:274:59First Quarter25Wed
26Thu11:342.611:232.15:120.36:070.97:275:00First Quarter26Thu
27Fri12:162.85:560.57:060.77:285:00First Quarter27Fri
28Sat12:331.912:583.06:400.77:590.47:285:01Waxing Gibbous28Sat
29Sun1:411.91:393.37:231.08:480.37:285:02Waxing Gibbous29Sun
30Mon2:452.02:203.58:051.29:350.17:285:02Waxing Gibbous30Mon
31Tue3:412.23:003.88:471.510:21-0.17:295:03Waxing Gibbous31Tue
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 24% 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 Waxing Crescent (24% 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