37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

60°
H -°
L 52°
WSW
2mph
High tide
8:10 pm

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

TIDE TIMES for Thursday, October 29, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 3:56 am (-0.4 ft)
Next high tide : in 1h 44m at 8:10 pm (4.2 ft)
Sunset today : 6:10 pm
Sunrise tomorrow : 7:28 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Mar 1794

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:133.15:064.011:080.811:54-0.26:436:06New Moon1Sat
2Sun5:563.35:593.812:040.56:426:07New Moon2Sun
3Mon6:393.56:533.512:380.012:590.36:406:08Waxing Crescent3Mon
4Tue7:233.67:493.21:210.21:540.26:396:09Waxing Crescent4Tue
5Wed8:103.68:472.82:040.42:520.26:376:10Waxing Crescent5Wed
6Thu8:583.69:472.52:490.73:520.26:366:11First Quarter6Thu
7Fri9:503.610:502.33:390.94:540.26:346:12First Quarter7Fri
8Sat10:443.511:562.24:361.15:570.26:336:13First Quarter8Sat
9Sun11:423.45:391.36:570.36:326:14First Quarter9Sun
10Mon1:022.212:413.36:411.37:520.36:306:15Waxing Gibbous10Mon
11Tue2:032.21:393.37:401.38:430.26:296:16Waxing Gibbous11Tue
12Wed2:552.42:343.38:341.29:290.26:276:17Waxing Gibbous12Wed
13Thu3:382.53:233.39:251.110:120.26:256:18Waxing Gibbous13Thu
14Fri4:162.64:093.310:130.910:530.26:246:19Full Moon14Fri
15Sat4:532.74:523.210:590.811:310.26:226:20Full Moon15Sat
16Sun5:282.95:343.111:430.66:216:21Full Moon16Sun
17Mon6:022.96:153.012:080.312:250.56:196:22Full Moon17Mon
18Tue6:363.06:582.812:440.41:080.46:186:23Waning Gibbous18Tue
19Wed7:083.07:432.71:170.61:500.46:166:24Waning Gibbous19Wed
20Thu7:403.18:312.51:480.82:350.36:156:25Waning Gibbous20Thu
21Fri8:123.19:242.32:131.03:250.36:136:25Waning Gibbous21Fri
22Sat8:503.110:222.22:291.24:210.36:126:26Third Quarter22Sat
23Sun9:373.211:252.22:501.35:220.36:106:27Third Quarter23Sun
24Mon10:353.23:441.46:220.26:096:28Third Quarter24Mon
25Tue12:282.211:43 AM3.25:521.57:190.16:076:29Third Quarter25Tue
26Wed1:282.312:553.37:061.38:130.06:066:30Waning Crescent26Wed
27Thu2:222.52:023.48:101.19:03-0.16:046:31Waning Crescent27Thu
28Fri3:112.83:043.59:080.89:50-0.16:026:32Waning Crescent28Fri
29Sat3:553.04:023.510:040.510:360.06:016:33New Moon29Sat
30Sun4:383.34:573.410:590.211:210.15:596:34New Moon30Sun
31Mon5:203.65:513.311:53-0.15:586:35New Moon31Mon
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 83% 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 Waning Gibbous (83% 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