37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

60°
H -°
L 56°
W
13mph
Low tide
3:32 am

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

TIDE TIMES for Tuesday, September 1, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 56m at 3:32 am (0.5 ft)
Next high tide : 9:26 am (2.7 ft)
Sunset today : 7:36 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waning Gibbous (86% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - May 1907

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:154.09:012.61:181.32:42-0.55:106:55Waning Gibbous1Wed
2Thu8:073.810:002.52:101.43:39-0.45:096:56Waning Gibbous2Thu
3Fri9:073.611:002.53:161.54:38-0.35:076:57Third Quarter3Fri
4Sat10:143.311:582.54:331.55:37-0.25:066:58Third Quarter4Sat
5Sun11:243.05:491.36:33-0.15:056:59Third Quarter5Sun
6Mon12:532.612:352.86:581.07:250.05:046:59Waning Crescent6Mon
7Tue1:432.81:432.67:590.78:140.25:037:00Waning Crescent7Tue
8Wed2:293.02:452.58:550.48:590.35:027:01Waning Crescent8Wed
9Thu3:113.23:422.59:460.19:420.55:017:02Waning Crescent9Thu
10Fri3:493.44:332.510:340.010:240.75:007:03New Moon10Fri
11Sat4:263.55:212.511:19-0.211:050.94:597:04New Moon11Sat
12Sun5:013.66:072.512:02-0.24:587:05New Moon12Sun
13Mon5:363.66:532.512:45-0.24:577:06New Moon13Mon
14Tue6:103.67:402.512:251.31:27-0.24:567:07Waxing Crescent14Tue
15Wed6:443.58:282.41:041.52:11-0.14:557:08Waxing Crescent15Wed
16Thu7:193.49:172.41:451.62:56-0.14:547:08Waxing Crescent16Thu
17Fri7:583.210:072.32:291.63:430.04:537:09Waxing Crescent17Fri
18Sat8:433.010:572.33:271.64:330.04:537:10First Quarter18Sat
19Sun9:392.711:452.34:371.55:230.14:527:11First Quarter19Sun
20Mon10:452.55:451.46:120.14:517:12First Quarter20Mon
21Tue12:322.411:58 AM2.46:471.16:580.24:507:13First Quarter21Tue
22Wed1:152.61:102.37:430.87:420.34:507:14Waxing Gibbous22Wed
23Thu1:572.92:162.48:350.58:240.54:497:14Waxing Gibbous23Thu
24Fri2:363.33:182.59:250.19:060.74:487:15Waxing Gibbous24Fri
25Sat3:153.64:152.610:14-0.29:481.04:487:16Waxing Gibbous25Sat
26Sun3:554.05:092.711:03-0.410:311.24:477:17Full Moon26Sun
27Mon4:364.26:032.811:53-0.611:181.44:477:17Full Moon27Mon
28Tue5:204.46:572.812:43-0.64:467:18Full Moon28Tue
29Wed6:064.47:522.812:071.51:34-0.64:467:19Waning Gibbous29Wed
30Thu6:564.38:482.71:021.62:25-0.64:457:20Waning Gibbous30Thu
31Fri7:524.09:432.72:031.63:18-0.44:457:20Waning Gibbous31Fri
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 86% 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 (86% 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