37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

92°
H -°
L 60°
W
11mph
High tide
6:36 pm

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

TIDE TIMES for Friday, September 11, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 1:01 am (0.4 ft)
Next high tide : in 3h 03m at 6:36 pm (3.4 ft)
Sunset today : 7:20 pm
Sunrise tomorrow : 6:44 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 1877

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:103.88:322.41:101.12:23-0.25:576:35Waning Gibbous1Sun
2Mon7:533.79:262.31:501.43:140.05:556:36Waning Gibbous2Mon
3Tue8:383.510:232.12:321.54:100.25:536:37Third Quarter3Tue
4Wed9:303.311:212.03:251.65:080.35:526:38Third Quarter4Wed
5Thu10:283.14:361.66:060.35:506:39Third Quarter5Thu
6Fri12:202.011:32 AM2.95:491.57:000.35:496:40Third Quarter6Fri
7Sat1:152.012:362.76:551.37:490.25:486:41Waning Crescent7Sat
8Sun2:022.11:382.67:531.18:320.25:466:42Waning Crescent8Sun
9Mon2:422.32:352.68:460.89:120.25:456:43Waning Crescent9Mon
10Tue3:182.53:282.69:350.59:500.35:436:44Waning Crescent10Tue
11Wed3:512.84:172.610:210.210:250.55:426:45New Moon11Wed
12Thu4:233.05:042.611:050.010:590.85:406:46New Moon12Thu
13Fri4:533.35:512.611:48-0.111:311.05:396:46New Moon13Fri
14Sat5:233.56:392.612:32-0.25:376:47New Moon14Sat
15Sun5:543.77:302.51:17-0.35:366:48Waxing Crescent15Sun
16Mon6:283.88:232.412:221.52:05-0.25:356:49Waxing Crescent16Mon
17Tue7:083.89:202.312:441.62:57-0.25:336:50Waxing Crescent17Tue
18Wed7:573.810:192.21:151.73:55-0.25:326:51Waxing Crescent18Wed
19Thu8:563.611:182.22:051.74:55-0.25:306:52First Quarter19Thu
20Fri10:073.34:091.65:54-0.25:296:53First Quarter20Fri
21Sat12:152.211:25 AM3.05:501.46:49-0.15:286:54First Quarter21Sat
22Sun1:072.412:422.87:041.07:38-0.15:266:55Waxing Gibbous22Sun
23Mon1:542.61:552.68:090.68:240.15:256:56Waxing Gibbous23Mon
24Tue2:373.03:012.59:070.29:080.35:246:57Waxing Gibbous24Tue
25Wed3:183.34:012.510:01-0.29:510.65:236:58Waxing Gibbous25Wed
26Thu3:583.64:562.510:52-0.410:330.85:216:58Full Moon26Thu
27Fri4:363.95:482.511:40-0.511:141.15:206:59Full Moon27Fri
28Sat5:154.06:382.512:27-0.55:197:00Full Moon28Sat
29Sun5:534.07:272.51:13-0.45:187:01Waning Gibbous29Sun
30Mon6:323.98:172.412:381.51:59-0.25:167:02Waning Gibbous30Mon
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 1% 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 (1% 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