37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

88°
H 88°
L 53°
WNW
10mph
High tide
8:26 pm

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

TIDE TIMES for Monday, September 14, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 3:27 am (0.3 ft)
Next high tide : in 5h 14m at 8:26 pm (3.6 ft)
Sunset today : 7:15 pm
Sunrise tomorrow : 6:46 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1870

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:052.410:313.64:530.04:321.66:085:56First Quarter1Sat
2Sun12:102.45:560.15:451.66:095:54First Quarter2Sun
3Mon1:132.46:560.16:521.46:105:53Waxing Gibbous3Mon
4Tue12:423.32:082.57:500.17:531.26:115:51Waxing Gibbous4Tue
5Wed1:453.22:542.78:390.28:481.06:125:50Waxing Gibbous5Wed
6Thu2:423.23:342.89:240.29:390.86:125:48Waxing Gibbous6Thu
7Fri3:343.14:103.010:050.310:260.66:135:47Full Moon7Fri
8Sat4:213.04:453.110:450.411:110.46:145:45Full Moon8Sat
9Sun5:062.95:183.211:230.511:540.26:155:44Full Moon9Sun
10Mon5:502.95:513.312:000.76:165:42Full Moon10Mon
11Tue6:342.76:223.312:370.212:360.96:175:41Waning Gibbous11Tue
12Wed7:202.66:533.31:190.11:101.16:185:39Waning Gibbous12Wed
13Thu8:092.57:243.22:030.21:411.36:195:38Waning Gibbous13Thu
14Fri9:012.47:593.22:490.22:081.56:205:36Waning Gibbous14Fri
15Sat9:562.38:413.13:400.22:201.66:215:35Third Quarter15Sat
16Sun10:532.29:343.04:360.33:011.76:225:34Third Quarter16Sun
17Mon11:512.210:402.95:330.25:221.76:235:32Third Quarter17Mon
18Tue12:452.36:290.26:321.56:245:31Third Quarter18Tue
19Wed1:352.47:200.17:311.26:255:30Waning Crescent19Wed
20Thu1:042.92:202.78:070.18:260.96:265:28Waning Crescent20Thu
21Fri2:093.03:012.98:520.19:180.56:275:27Waning Crescent21Fri
22Sat3:103.03:403.39:350.210:100.16:285:26Waning Crescent22Sat
23Sun4:063.14:193.610:170.411:01-0.26:295:24New Moon23Sun
24Mon5:013.04:583.910:590.611:52-0.46:305:23New Moon24Mon
25Tue5:563.05:394.111:410.86:315:22New Moon25Tue
26Wed6:512.96:234.212:44-0.512:251.16:325:21Waxing Crescent26Wed
27Thu7:492.87:104.11:37-0.51:121.36:335:19Waxing Crescent27Thu
28Fri8:482.68:023.92:31-0.52:051.46:345:18Waxing Crescent28Fri
29Sat9:482.59:013.73:28-0.33:081.56:355:17First Quarter29Sat
30Sun10:492.510:043.34:27-0.24:201.56:365:16First Quarter30Sun
31Mon11:482.411:113.05:26-0.15:341.46:375:15First Quarter31Mon
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 14% 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 Waxing Crescent (14% 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