37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

80°
H -°
L 56°
WSW
14mph
Low tide
3:38 pm

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

TIDE TIMES for Wednesday, September 16, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 8m at 3:38 pm (1.6 ft)
Next high tide : 9:47 pm (3.5 ft)
Sunset today : 7:12 pm
Sunrise tomorrow : 6:48 am
Moon phase : Waxing Crescent (31% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Mar 1866

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:283.05:283.411:360.76:446:06Full Moon1Thu
2Fri6:053.16:123.212:070.212:220.66:426:07Full Moon2Fri
3Sat6:423.16:563.012:450.31:070.56:416:08Waning Gibbous3Sat
4Sun7:193.17:412.81:220.51:520.56:396:09Waning Gibbous4Sun
5Mon7:573.18:282.61:580.72:390.56:386:10Waning Gibbous5Mon
6Tue8:353.19:192.42:340.93:290.56:376:11Waning Gibbous6Tue
7Wed9:163.110:142.23:101.04:240.56:356:12Third Quarter7Wed
8Thu10:003.011:122.13:511.25:230.56:346:13Third Quarter8Thu
9Fri10:513.04:471.36:210.56:326:14Third Quarter9Fri
10Sat12:142.111:48 AM3.15:541.47:160.46:316:15Third Quarter10Sat
11Sun1:152.112:483.16:571.48:070.36:296:16Waning Crescent11Sun
12Mon2:102.31:473.27:541.28:540.26:286:17Waning Crescent12Mon
13Tue2:582.52:433.48:481.19:390.16:266:17Waning Crescent13Tue
14Wed3:422.73:363.49:400.810:220.16:256:18Waning Crescent14Wed
15Thu4:233.04:273.510:310.611:040.16:236:19New Moon15Thu
16Fri5:033.25:183.411:220.311:460.26:226:20New Moon16Fri
17Sat5:433.56:093.312:130.16:206:21New Moon17Sat
18Sun6:243.77:023.212:270.41:050.06:186:22Waxing Crescent18Sun
19Mon7:073.87:582.91:080.61:58-0.16:176:23Waxing Crescent19Mon
20Tue7:543.88:562.71:510.82:54-0.16:156:24Waxing Crescent20Tue
21Wed8:463.79:572.52:391.03:540.06:146:25First Quarter21Wed
22Thu9:423.611:002.43:351.14:560.06:126:26First Quarter22Thu
23Fri10:433.54:421.25:590.16:116:27First Quarter23Fri
24Sat12:042.311:47 AM3.35:521.26:580.16:096:28First Quarter24Sat
25Sun1:062.412:523.26:581.17:520.16:086:29Waxing Gibbous25Sun
26Mon2:032.51:543.17:591.08:420.26:066:30Waxing Gibbous26Mon
27Tue2:522.62:513.18:540.89:280.26:056:31Waxing Gibbous27Tue
28Wed3:352.83:433.09:460.610:110.36:036:31Waxing Gibbous28Wed
29Thu4:143.04:303.010:340.410:520.46:026:32Full Moon29Thu
30Fri4:513.15:142.911:190.311:320.56:006:33Full Moon30Fri
31Sat5:263.25:582.912:020.25:596:34Full Moon31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

Common Questions About Blackslough Landing, San Joaquin River, CA Tides

Collapse All
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 31% 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 Waxing Crescent (31% 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