37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

85°
H -°
L 63°
NW
3mph
High tide
11:40 pm

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

TIDE TIMES for Saturday, October 3, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 7:23 am (0.1 ft)
Next high tide : in 4h 00m at 11:40 pm (3.6 ft)
Sunset today : 6:45 pm
Sunrise tomorrow : 7:03 am
Moon phase : Third Quarter (48% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1836

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:592.49:483.44:050.53:371.45:426:42Third Quarter1Thu
2Fri11:012.210:373.45:040.64:261.65:436:40Third Quarter2Fri
3Sat12:062.26:040.65:271.85:446:39Third Quarter3Sat
4Sun1:122.27:020.66:291.85:456:37Third Quarter4Sun
5Mon12:273.52:122.37:560.57:271.85:466:36Waning Crescent5Mon
6Tue1:253.53:012.48:460.48:201.75:466:34Waning Crescent6Tue
7Wed2:183.63:422.59:310.39:101.55:476:33Waning Crescent7Wed
8Thu3:073.64:192.610:120.29:581.35:486:31Waning Crescent8Thu
9Fri3:533.64:542.810:510.210:451.15:496:30New Moon9Fri
10Sat4:363.55:272.911:280.211:300.95:506:28New Moon10Sat
11Sun5:203.45:593.112:020.35:516:26New Moon11Sun
12Mon6:053.26:313.212:160.712:340.55:526:25New Moon12Mon
13Tue6:533.07:033.41:020.51:040.75:526:23Waxing Crescent13Tue
14Wed7:462.87:373.61:510.41:301.05:536:22Waxing Crescent14Wed
15Thu8:452.68:173.72:440.31:521.35:546:20Waxing Crescent15Thu
16Fri9:492.49:053.83:440.32:141.55:556:19First Quarter16Fri
17Sat10:582.310:033.84:490.22:481.75:566:17First Quarter17Sat
18Sun12:092.35:560.24:251.95:576:16First Quarter18Sun
19Mon1:172.36:590.16:221.85:586:14First Quarter19Mon
20Tue12:243.82:162.47:570.17:351.65:586:12Waxing Gibbous20Tue
21Wed1:343.83:052.68:490.08:391.35:596:11Waxing Gibbous21Wed
22Thu2:383.73:472.89:370.09:371.06:006:09Waxing Gibbous22Thu
23Fri3:363.64:263.010:210.110:320.76:016:08Full Moon23Fri
24Sat4:293.55:043.211:020.211:240.46:026:06Full Moon24Sat
25Sun5:203.35:413.411:420.46:036:05Full Moon25Sun
26Mon6:103.06:173.512:130.212:200.66:046:03Waning Gibbous26Mon
27Tue6:592.86:533.51:010.112:580.96:056:01Waning Gibbous27Tue
28Wed7:512.67:303.51:490.11:351.26:056:00Waning Gibbous28Wed
29Thu8:442.58:083.42:370.22:121.46:065:58Waning Gibbous29Thu
30Fri9:402.38:513.33:290.32:521.66:075:57Third Quarter30Fri
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 neap phase. Tonight's moon is 48% 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 minimum.

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 (48% illuminated). This places Blackslough Landing, San Joaquin River, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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