37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

59°
H -°
L 51°
WSW
8mph
High tide
11:56 pm

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

TIDE TIMES for Saturday, September 5, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 7:48 am (0.3 ft)
Next high tide (tomorrow) : in 19m at 11:56 pm (4.0 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 6:38 am
Moon phase : Third Quarter (45% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Aug 1889

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:543.19:123.02:291.32:520.45:087:14Waxing Crescent1Thu
2Fri8:512.89:513.23:281.13:250.65:097:13First Quarter2Fri
3Sat9:582.610:343.44:331.03:590.95:107:12First Quarter3Sat
4Sun11:122.411:213.75:390.84:401.25:117:11First Quarter4Sun
5Mon12:282.36:430.55:371.45:127:10First Quarter5Mon
6Tue12:144.01:412.47:430.36:441.65:137:09Waxing Gibbous6Tue
7Wed1:114.32:472.58:390.17:501.75:147:08Waxing Gibbous7Wed
8Thu2:104.53:442.79:330.08:521.75:147:07Waxing Gibbous8Thu
9Fri3:064.64:352.910:25-0.19:521.65:157:06Full Moon9Fri
10Sat4:014.75:213.011:14-0.110:511.55:167:04Full Moon10Sat
11Sun4:534.56:063.112:00-0.15:177:03Full Moon11Sun
12Mon5:444.36:503.212:440.05:187:02Full Moon12Mon
13Tue6:353.97:343.312:451.11:270.15:197:01Waning Gibbous13Tue
14Wed7:273.58:183.31:401.02:090.35:206:59Waning Gibbous14Wed
15Thu8:213.19:023.32:360.92:510.55:216:58Waning Gibbous15Thu
16Fri9:182.79:473.33:340.83:340.85:216:57Third Quarter16Fri
17Sat10:172.510:333.34:340.84:201.15:226:56Third Quarter17Sat
18Sun11:202.311:203.45:350.75:111.35:236:54Third Quarter18Sun
19Mon12:252.26:330.76:051.55:246:53Third Quarter19Mon
20Tue12:113.51:302.27:290.66:591.65:256:52Waning Crescent20Tue
21Wed1:033.62:282.38:200.57:521.75:266:50Waning Crescent21Wed
22Thu1:543.73:182.59:080.48:421.75:276:49Waning Crescent22Thu
23Fri2:433.84:022.69:530.39:301.65:286:47Waning Crescent23Fri
24Sat3:293.84:412.710:360.310:161.55:286:46New Moon24Sat
25Sun4:123.95:192.811:160.211:021.45:296:45New Moon25Sun
26Mon4:533.85:562.911:550.211:481.25:306:43New Moon26Mon
27Tue5:343.76:323.012:310.25:316:42New Moon27Tue
28Wed6:173.57:073.112:331.01:060.35:326:40Waxing Crescent28Wed
29Thu7:033.27:433.21:200.91:390.55:336:39Waxing Crescent29Thu
30Fri7:553.08:203.42:110.72:110.75:346:37Waxing Crescent30Fri
31Sat8:542.79:023.53:060.62:411.05:346:36Waxing Crescent31Sat
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 45% 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 (45% 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