37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

76°
H 85°
L 54°
WNW
6mph
High tide
2:00 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 : 6:42 pm (1.9 ft)
Next high tide : in 1h 37m at 2:00 pm (2.2 ft)
Sunset today : 7:29 pm
Sunrise tomorrow : 6:39 am
Moon phase : Third Quarter (34% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jan 1888

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:342.76:263.91:18-0.312:421.67:224:57Waning Gibbous1Sun
2Mon8:192.77:123.61:59-0.31:361.57:224:57Waning Gibbous2Mon
3Tue9:042.78:063.32:42-0.32:391.47:224:58Waning Gibbous3Tue
4Wed9:502.89:092.93:25-0.13:501.27:224:59Third Quarter4Wed
5Thu10:363.010:222.64:100.15:021.07:225:00Third Quarter5Thu
6Fri11:243.211:392.34:580.36:110.77:225:01Third Quarter6Fri
7Sat12:133.55:490.67:150.47:225:02Third Quarter7Sat
8Sun12:552.21:043.86:420.98:140.17:225:03Waning Crescent8Sun
9Mon2:082.21:564.17:361.19:09-0.17:225:04Waning Crescent9Mon
10Tue3:142.32:474.38:301.310:01-0.27:215:04Waning Crescent10Tue
11Wed4:112.53:364.49:241.410:51-0.37:215:05New Moon11Wed
12Thu5:022.74:244.410:181.511:38-0.37:215:06New Moon12Thu
13Fri5:492.85:104.311:111.57:215:07New Moon13Fri
14Sat6:342.85:554.112:24-0.312:041.57:215:08New Moon14Sat
15Sun7:192.86:403.81:07-0.212:551.47:205:10Waxing Crescent15Sun
16Mon8:032.87:253.41:49-0.11:471.37:205:11Waxing Crescent16Mon
17Tue8:462.88:133.02:300.02:411.27:195:12Waxing Crescent17Tue
18Wed9:292.89:052.73:110.13:391.17:195:13Waxing Crescent18Wed
19Thu10:112.810:022.33:530.34:391.07:195:14First Quarter19Thu
20Fri10:542.911:052.14:360.65:410.87:185:15First Quarter20Fri
21Sat11:383.05:210.86:400.77:185:16First Quarter21Sat
22Sun12:122.012:243.26:091.07:350.57:175:17First Quarter22Sun
23Mon1:192.01:103.46:571.28:260.47:165:18Waxing Gibbous23Mon
24Tue2:232.11:573.67:451.49:140.27:165:19Waxing Gibbous24Tue
25Wed3:192.22:433.88:331.510:010.17:155:20Waxing Gibbous25Wed
26Thu4:092.43:274.09:201.610:46-0.17:155:21Waxing Gibbous26Thu
27Fri4:542.64:094.110:081.611:29-0.27:145:23Full Moon27Fri
28Sat5:372.74:524.110:561.57:135:24Full Moon28Sat
29Sun6:182.85:364.112:11-0.211:45 AM1.47:125:25Full Moon29Sun
30Mon7:002.96:223.912:52-0.312:371.37:125:26Waning Gibbous30Mon
31Tue7:423.07:123.61:32-0.21:311.17:115:27Waning 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 34% 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 Third Quarter (34% 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