37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

71°
H 90°
L 52°
NW
10mph
Low tide
2:27 pm

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

TIDE TIMES for Monday, September 14, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 17m at 2:27 pm (1.1 ft)
Next high tide : 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 - May 1871

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:382.72:462.78:590.59:090.25:167:03Waxing Gibbous1Mon
2Tue3:173.13:452.79:500.19:500.45:157:03Waxing Gibbous2Tue
3Wed3:553.44:412.810:41-0.210:310.75:147:04Full Moon3Wed
4Thu4:333.85:362.811:31-0.511:130.95:127:05Full Moon4Thu
5Fri5:124.16:312.812:22-0.65:117:06Full Moon5Fri
6Sat5:554.27:272.71:13-0.75:107:07Waning Gibbous6Sat
7Sun6:404.28:252.612:411.32:06-0.65:097:08Waning Gibbous7Sun
8Mon7:314.19:242.51:321.53:01-0.55:087:09Waning Gibbous8Mon
9Tue8:273.810:232.52:321.63:58-0.45:077:10Waning Gibbous9Tue
10Wed9:303.511:212.53:441.64:56-0.25:067:11Third Quarter10Wed
11Thu10:363.15:001.55:52-0.15:057:12Third Quarter11Thu
12Fri12:162.511:45 AM2.86:121.26:450.05:047:13Third Quarter12Fri
13Sat1:072.612:532.57:170.97:340.25:037:13Waning Crescent13Sat
14Sun1:532.81:592.48:150.68:190.35:027:14Waning Crescent14Sun
15Mon2:343.02:582.39:070.39:010.55:027:15Waning Crescent15Mon
16Tue3:123.13:522.39:550.19:420.75:017:16Waning Crescent16Tue
17Wed3:483.34:412.410:40-0.110:220.95:007:17New Moon17Wed
18Thu4:223.55:272.411:23-0.211:011.24:597:18New Moon18Thu
19Fri4:563.66:122.512:05-0.24:587:19New Moon19Fri
20Sat5:283.76:582.512:46-0.24:587:19New Moon20Sat
21Sun6:003.77:452.512:171.51:28-0.24:577:20Waxing Crescent21Sun
22Mon6:313.68:332.412:521.72:11-0.14:567:21Waxing Crescent22Mon
23Tue7:053.59:222.31:251.72:56-0.14:567:22Waxing Crescent23Tue
24Wed7:443.310:112.32:001.83:42-0.14:557:23Waxing Crescent24Wed
25Thu8:313.010:592.33:041.74:300.04:547:23First Quarter25Thu
26Fri9:292.811:462.44:301.65:190.04:547:24First Quarter26Fri
27Sat10:402.65:441.46:070.14:537:25First Quarter27Sat
28Sun12:302.612:002.46:491.06:520.24:537:26First Quarter28Sun
29Mon1:122.81:172.37:460.77:360.44:527:26Waxing Gibbous29Mon
30Tue1:533.22:272.48:400.38:190.74:527:27Waxing Gibbous30Tue
31Wed2:353.63:322.59:33-0.19:030.94:517:28Waxing Gibbous31Wed
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