37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

69°
H 69°
L 43°
NW
8mph
Low tide
4:49 pm

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

TIDE TIMES for Sunday, November 1, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 1h 42m at 4:49 pm (1.5 ft)
Next high tide : 10:27 pm (3.1 ft)
Sunset today : 5:06 pm
Sunrise tomorrow : 6:31 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1790

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:482.211:033.05:420.45:301.56:085:55Third Quarter1Fri
2Sat12:432.36:370.36:371.36:095:54Third Quarter2Sat
3Sun12:123.01:342.57:270.27:371.16:105:52Waning Crescent3Sun
4Mon1:203.02:202.88:140.28:320.86:115:50Waning Crescent4Mon
5Tue2:223.13:033.18:590.39:250.46:125:49Waning Crescent5Tue
6Wed3:213.23:443.49:420.410:170.16:135:47New Moon6Wed
7Thu4:163.24:263.810:250.511:08-0.16:145:46New Moon7Thu
8Fri5:093.25:074.011:090.76:155:45New Moon8Fri
9Sat6:033.15:514.212:00-0.311:53 AM0.96:165:43New Moon9Sat
10Sun6:573.06:374.212:52-0.412:381.16:175:42Waxing Crescent10Sun
11Mon7:532.97:264.11:45-0.31:271.26:185:40Waxing Crescent11Mon
12Tue8:512.78:213.92:40-0.32:221.36:195:39Waxing Crescent12Tue
13Wed9:502.69:203.63:37-0.13:251.46:195:37First Quarter13Wed
14Thu10:502.510:233.34:360.04:351.46:205:36First Quarter14Thu
15Fri11:482.511:283.05:340.15:451.26:215:34First Quarter15Fri
16Sat12:442.56:290.26:501.06:225:33First Quarter16Sat
17Sun12:332.81:342.67:210.27:480.86:235:32Waxing Gibbous17Sun
18Mon1:362.62:192.88:080.38:410.56:245:30Waxing Gibbous18Mon
19Tue2:332.62:593.08:510.49:290.36:255:29Waxing Gibbous19Tue
20Wed3:252.63:363.19:330.610:140.26:265:28Waxing Gibbous20Wed
21Thu4:122.64:123.310:130.710:570.16:275:26Full Moon21Thu
22Fri4:572.64:463.410:520.911:400.06:285:25Full Moon22Fri
23Sat5:402.75:203.511:301.16:295:24Full Moon23Sat
24Sun6:242.65:523.512:210.012:071.26:305:23Full Moon24Sun
25Mon7:082.66:233.51:030.012:421.36:315:21Waning Gibbous25Mon
26Tue7:552.56:553.41:460.01:151.56:325:20Waning Gibbous26Tue
27Wed8:442.47:323.22:300.01:471.56:345:19Waning Gibbous27Wed
28Thu9:352.38:163.13:160.12:291.56:355:18Waning Gibbous28Thu
29Fri10:272.39:122.94:060.13:511.56:365:17Third Quarter29Fri
30Sat11:182.310:222.74:590.15:121.36:375:15Third Quarter30Sat
31Sun12:072.55:510.16:211.16:385:14Third Quarter31Sun
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 50% 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 (50% 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