37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

61°
H -°
L 52°
W
9mph
High tide
11:56 pm

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

TIDE TIMES for Saturday, September 5, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 7:48 am (0.3 ft)
Next high tide (tomorrow) : in 1h 19m at 11:56 pm (4.0 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 6:38 am
Moon phase : Third Quarter (45% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Dec 1889

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:052.51:043.06:430.27:370.67:034:46Waxing Gibbous1Sun
2Mon1:152.31:493.27:310.48:330.37:044:46Waxing Gibbous2Mon
3Tue2:222.22:323.48:160.69:230.07:054:46Waxing Gibbous3Tue
4Wed3:212.23:113.69:000.810:10-0.17:064:46Waxing Gibbous4Wed
5Thu4:142.33:493.79:431.110:54-0.27:074:46Full Moon5Thu
6Fri5:012.44:263.910:251.311:37-0.27:084:46Full Moon6Fri
7Sat5:462.55:013.911:071.57:094:46Full Moon7Sat
8Sun6:312.55:363.912:19-0.211:48 AM1.67:094:46Full Moon8Sun
9Mon7:152.56:103.71:00-0.212:291.77:104:46Waning Gibbous9Mon
10Tue8:012.56:453.51:42-0.21:111.77:114:46Waning Gibbous10Tue
11Wed8:472.47:223.32:25-0.11:571.77:124:46Waning Gibbous11Wed
12Thu9:342.48:043.03:08-0.12:531.67:134:46Waning Gibbous12Thu
13Fri10:202.48:562.73:510.04:011.57:134:47Third Quarter13Fri
14Sat11:042.410:002.44:360.15:111.37:144:47Third Quarter14Sat
15Sun11:472.611:162.25:200.26:151.07:154:47Third Quarter15Sun
16Mon12:282.86:040.37:130.77:154:47Third Quarter16Mon
17Tue12:342.11:103.16:480.68:070.47:164:48Waning Crescent17Tue
18Wed1:472.11:513.57:300.88:580.17:164:48Waning Crescent18Wed
19Thu2:532.32:343.98:141.19:48-0.27:174:49Waning Crescent19Thu
20Fri3:532.43:184.38:591.310:38-0.47:184:49Waning Crescent20Fri
21Sat4:482.64:044.59:481.511:28-0.67:184:50New Moon21Sat
22Sun5:402.74:514.710:401.67:194:50New Moon22Sun
23Mon6:322.85:404.612:18-0.611:36 AM1.67:194:51New Moon23Mon
24Tue7:232.86:314.41:07-0.612:351.67:194:51Waxing Crescent24Tue
25Wed8:152.87:264.01:56-0.61:371.57:204:52Waxing Crescent25Wed
26Thu9:072.88:253.52:45-0.42:441.47:204:53Waxing Crescent26Thu
27Fri9:582.99:283.03:34-0.23:551.27:204:53First Quarter27Fri
28Sat10:482.910:342.64:240.05:061.07:214:54First Quarter28Sat
29Sun11:373.111:432.25:140.26:140.77:214:55First Quarter29Sun
30Mon12:253.26:030.57:160.57:214:55First Quarter30Mon
31Tue12:542.01:113.46:520.78:130.27:214:56Waxing 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 neap phase. Tonight's moon is 45% 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 minimum.

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 Third Quarter (45% illuminated). This places Blackslough Landing, San Joaquin River, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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