37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

59°
H -°
L 54°
W
5mph
Low tide
8:48 am

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

TIDE TIMES for Sunday, September 6, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 6h 07m at 8:48 am (0.2 ft)
Next high tide : 3:04 pm (2.4 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waning Crescent (23% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Aug 1886

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:434.46:533.412:46-0.15:087:14Waxing Crescent1Sun
2Mon6:364.17:403.512:461.11:310.05:097:13Waxing Crescent2Mon
3Tue7:323.78:283.61:451.02:160.25:107:12Waxing Crescent3Tue
4Wed8:313.39:173.62:460.93:010.45:117:11Waxing Crescent4Wed
5Thu9:332.910:073.73:500.83:500.75:127:10First Quarter5Thu
6Fri10:372.610:593.74:550.74:410.95:127:09First Quarter6Fri
7Sat11:442.411:523.85:590.65:371.25:137:08First Quarter7Sat
8Sun12:512.37:000.56:331.45:147:07Waxing Gibbous8Sun
9Mon12:463.81:572.47:560.47:291.55:157:06Waxing Gibbous9Mon
10Tue1:393.82:542.58:470.48:221.55:167:05Waxing Gibbous10Tue
11Wed2:293.93:432.69:340.49:121.55:177:03Waxing Gibbous11Wed
12Thu3:163.94:252.710:190.310:011.55:187:02Full Moon12Thu
13Fri4:003.95:042.811:010.310:481.45:197:01Full Moon13Fri
14Sat4:423.95:422.911:410.311:331.35:197:00Full Moon14Sat
15Sun5:223.86:203.012:190.35:206:59Full Moon15Sun
16Mon6:023.66:573.012:181.212:560.35:216:57Full Moon16Mon
17Tue6:423.47:343.01:021.11:320.55:226:56Waning Gibbous17Tue
18Wed7:243.18:113.11:471.12:060.65:236:55Waning Gibbous18Wed
19Thu8:102.98:483.12:351.02:380.85:246:53Waning Gibbous19Thu
20Fri9:022.69:263.23:281.03:071.05:256:52Waning Gibbous20Fri
21Sat10:012.510:093.34:260.93:331.25:266:51Third Quarter21Sat
22Sun11:072.310:583.55:270.84:091.45:266:49Third Quarter22Sun
23Mon12:162.36:280.65:271.55:276:48Third Quarter23Mon
24Tue1:222.47:250.56:431.65:286:46Waning Crescent24Tue
25Wed12:543.82:222.68:190.37:471.55:296:45Waning Crescent25Wed
26Thu1:544.03:152.89:100.18:471.45:306:44Waning Crescent26Thu
27Fri2:534.24:033.09:590.09:451.25:316:42Waning Crescent27Fri
28Sat3:484.24:493.210:460.010:421.05:326:41New Moon28Sat
29Sun4:424.25:333.411:320.011:380.85:326:39New Moon29Sun
30Mon5:354.06:173.612:160.15:336:38New Moon30Mon
31Tue6:283.87:023.712:340.61:000.35:346:36Waxing Crescent31Tue
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 transitional phase. Tonight's moon is 23% 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 shifting between spring and neap.

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 Crescent (23% illuminated). This places Blackslough Landing, San Joaquin River, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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