37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

56°
H 81°
L 59°
SSW
2mph
High tide
11:37 am

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

TIDE TIMES for Thursday, September 3, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 3:31 pm (1.7 ft)
Next high tide : in 4h 04m at 11:37 am (2.3 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (56% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Aug 1901

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:313.96:403.112:350.15:087:15Full Moon1Thu
2Fri6:173.77:193.312:351.21:120.25:087:14Waning Gibbous2Fri
3Sat7:083.48:003.41:281.01:490.45:097:13Waning Gibbous3Sat
4Sun8:033.18:443.62:240.92:270.65:107:12Waning Gibbous4Sun
5Mon9:042.89:313.83:250.73:060.95:117:11Third Quarter5Mon
6Tue10:112.610:223.94:300.63:501.15:127:10Third Quarter6Tue
7Wed11:202.411:174.05:360.54:481.45:137:09Third Quarter7Wed
8Thu12:312.36:400.45:551.55:147:08Third Quarter8Thu
9Fri12:174.11:402.47:400.37:021.65:157:07Waning Crescent9Fri
10Sat1:174.22:422.58:350.28:051.65:157:05Waning Crescent10Sat
11Sun2:164.23:352.79:260.29:031.55:167:04Waning Crescent11Sun
12Mon3:104.24:212.910:140.19:591.45:177:03New Moon12Mon
13Tue4:014.15:043.010:590.110:531.25:187:02New Moon13Tue
14Wed4:494.05:443.211:410.211:441.15:197:01New Moon14Wed
15Thu5:353.86:233.212:210.35:206:59New Moon15Thu
16Fri6:203.57:023.312:331.01:000.45:216:58Waxing Crescent16Fri
17Sat7:063.27:413.31:210.91:380.65:226:57Waxing Crescent17Sat
18Sun7:533.08:203.32:100.82:150.85:226:55Waxing Crescent18Sun
19Mon8:442.79:013.33:000.82:521.05:236:54Waxing Crescent19Mon
20Tue9:382.59:443.33:550.83:311.25:246:53First Quarter20Tue
21Wed10:362.310:313.34:530.84:151.45:256:51First Quarter21Wed
22Thu11:372.211:233.45:520.85:111.65:266:50First Quarter22Thu
23Fri12:402.26:490.76:131.65:276:49First Quarter23Fri
24Sat12:173.51:402.37:420.67:111.65:286:47Waxing Gibbous24Sat
25Sun1:123.52:342.48:310.48:061.55:286:46Waxing Gibbous25Sun
26Mon2:063.63:202.69:160.38:581.45:296:45Waxing Gibbous26Mon
27Tue2:573.74:022.89:590.29:481.25:306:43Waxing Gibbous27Tue
28Wed3:463.84:413.010:410.210:391.05:316:42Full Moon28Wed
29Thu4:343.85:193.311:200.211:290.85:326:40Full Moon29Thu
30Fri5:223.75:583.511:590.35:336:39Full Moon30Fri
31Sat6:123.56:373.712:200.612:380.55:346:37Waning Gibbous31Sat
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 56% 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 (56% 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