37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

60°
H 87°
L 56°
WSW
6mph
High tide
6:56 am

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

TIDE TIMES for Saturday, September 12, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 1:14 pm (0.5 ft)
Next high tide : in 22m at 6:56 am (3.2 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 6:45 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Dec 1875

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:262.36:473.52:01-0.112:521.87:104:53Waxing Crescent1Wed
2Thu9:142.37:283.32:45-0.11:331.87:114:53Waxing Crescent2Thu
3Fri10:012.28:152.93:29-0.12:521.77:124:53Waxing Crescent3Fri
4Sat10:452.29:152.64:13-0.14:211.57:124:53First Quarter4Sat
5Sun11:272.410:292.34:560.05:371.27:134:53First Quarter5Sun
6Mon12:062.65:390.16:410.87:144:53First Quarter6Mon
7Tue12:463.06:200.47:390.47:154:53First Quarter7Tue
8Wed1:132.01:263.47:010.78:330.07:164:53Waxing Gibbous8Wed
9Thu2:272.12:083.87:421.09:25-0.37:174:53Waxing Gibbous9Thu
10Fri3:322.32:524.38:251.310:17-0.57:184:53Waxing Gibbous10Fri
11Sat4:312.43:384.69:111.511:08-0.77:184:53Full Moon11Sat
12Sun5:252.54:254.810:021.77:194:53Full Moon12Sun
13Mon6:182.65:144.812:00-0.710:58 AM1.87:204:54Full Moon13Mon
14Tue7:102.66:054.612:50-0.711:58 AM1.77:214:54Waning Gibbous14Tue
15Wed8:022.66:594.21:40-0.61:021.77:214:54Waning Gibbous15Wed
16Thu8:532.67:553.72:29-0.52:091.57:224:54Waning Gibbous16Thu
17Fri9:432.68:563.13:17-0.33:211.47:234:55Third Quarter17Fri
18Sat10:312.710:002.64:05-0.14:341.17:234:55Third Quarter18Sat
19Sun11:182.811:082.24:520.15:450.87:244:55Third Quarter19Sun
20Mon12:032.95:380.36:490.67:244:56Third Quarter20Mon
21Tue12:191.912:463.16:240.67:470.37:254:56Waning Crescent21Tue
22Wed1:321.81:283.37:090.98:380.17:254:57Waning Crescent22Wed
23Thu2:401.92:103.57:531.29:250.07:264:57Waning Crescent23Thu
24Fri3:382.02:503.78:371.410:100.07:264:58Waning Crescent24Fri
25Sat4:272.23:303.99:211.610:530.07:274:59New Moon25Sat
26Sun5:112.44:094.010:041.811:36-0.17:274:59New Moon26Sun
27Mon5:522.54:464.010:471.87:275:00New Moon27Mon
28Tue6:342.55:224.012:17-0.111:30 AM1.97:285:01New Moon28Tue
29Wed7:162.55:573.812:58-0.212:121.87:285:01New Moon29Wed
30Thu7:582.46:343.51:37-0.212:561.77:285:02Waxing Crescent30Thu
31Fri8:392.47:133.22:15-0.21:471.67:285:03Waxing Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

Common Questions About Blackslough Landing, San Joaquin River, CA Tides

Collapse All
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 3% 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 New Moon (3% 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