37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

87°
H -°
L 55°
WSW
14mph
High tide
7:29 pm

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

TIDE TIMES for Saturday, August 29, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 1:51 am (0.7 ft)
Next high tide : in 1h 18m at 7:29 pm (3.2 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:33 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jan 1911

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:412.55:284.012:26-0.111:32 AM1.87:214:56New Moon1Sun
2Mon7:232.56:033.81:06-0.212:131.87:224:57Waxing Crescent2Mon
3Tue8:062.56:423.61:45-0.212:591.77:224:58Waxing Crescent3Tue
4Wed8:472.57:263.22:23-0.21:551.57:224:58Waxing Crescent4Wed
5Thu9:272.58:192.93:00-0.23:021.37:224:59Waxing Crescent5Thu
6Fri10:072.79:242.53:370.04:151.17:225:00First Quarter6Fri
7Sat10:462.910:422.24:130.35:280.87:225:01First Quarter7Sat
8Sun11:283.24:500.66:350.57:225:02First Quarter8Sun
9Mon12:062.012:143.65:320.97:360.27:225:03First Quarter9Mon
10Tue1:272.01:044.06:231.38:34-0.17:215:04Waxing Gibbous10Tue
11Wed2:412.11:574.37:211.59:29-0.37:215:05Waxing Gibbous11Wed
12Thu3:462.32:514.68:221.710:23-0.47:215:06Waxing Gibbous12Thu
13Fri4:412.53:444.79:241.811:13-0.47:215:07Full Moon13Fri
14Sat5:302.64:364.710:251.87:215:08Full Moon14Sat
15Sun6:172.75:264.512:02-0.411:25 AM1.77:205:09Full Moon15Sun
16Mon7:022.86:164.212:48-0.412:231.57:205:10Waning Gibbous16Mon
17Tue7:472.87:073.71:32-0.31:211.37:205:11Waning Gibbous17Tue
18Wed8:312.87:583.22:14-0.22:201.27:195:12Waning Gibbous18Wed
19Thu9:142.98:532.72:550.03:211.07:195:13Waning Gibbous19Thu
20Fri9:562.99:522.33:350.24:240.97:185:14Third Quarter20Fri
21Sat10:383.010:562.04:160.55:270.77:185:15Third Quarter21Sat
22Sun11:213.14:580.86:270.67:175:16Third Quarter22Sun
23Mon12:041.912:053.35:441.17:240.47:175:17Third Quarter23Mon
24Tue1:151.912:523.46:331.48:170.47:165:19Waning Crescent24Tue
25Wed2:232.01:403.67:231.69:060.37:165:20Waning Crescent25Wed
26Thu3:222.12:273.88:131.79:530.27:155:21Waning Crescent26Thu
27Fri4:102.33:134.09:021.810:380.17:145:22Waning Crescent27Fri
28Sat4:522.43:554.09:501.811:200.07:135:23New Moon28Sat
29Sun5:312.54:364.010:371.77:135:24New Moon29Sun
30Mon6:102.65:163.912:01-0.111:23 AM1.67:125:25New Moon30Mon
31Tue6:482.65:563.712:39-0.212:111.47:115:26New Moon31Tue
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 97% 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 Full Moon (97% 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