37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

56°
H 92°
L 57°
WNW
3mph
Low tide
9:41 am

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

TIDE TIMES for Monday, September 7, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 6h 12m at 9:41 am (0.1 ft)
Next high tide : 3:56 pm (2.5 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waning Crescent (14% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1884

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:133.03:002.88:570.39:140.76:015:48Waxing Gibbous1Wed
2Thu3:063.13:403.19:380.310:020.56:025:46Waxing Gibbous2Thu
3Fri3:573.14:173.310:180.410:490.26:035:45Full Moon3Fri
4Sat4:463.24:543.610:580.611:370.06:045:43Full Moon4Sat
5Sun5:353.15:323.811:370.76:055:42Full Moon5Sun
6Mon6:263.16:123.912:25-0.112:170.96:065:40Waning Gibbous6Mon
7Tue7:192.96:564.01:16-0.212:591.16:075:39Waning Gibbous7Tue
8Wed8:162.87:463.92:08-0.21:451.26:085:37Waning Gibbous8Wed
9Thu9:152.68:423.83:04-0.12:411.46:095:36Waning Gibbous9Thu
10Fri10:162.59:443.54:03-0.13:501.46:105:34Third Quarter10Fri
11Sat11:172.510:523.35:040.05:051.36:115:33Third Quarter11Sat
12Sun12:162.66:040.16:161.26:125:31Third Quarter12Sun
13Mon12:003.11:122.77:000.17:210.96:135:30Waning Crescent13Mon
14Tue1:082.92:032.97:510.28:190.76:145:29Waning Crescent14Tue
15Wed2:112.92:483.18:390.39:120.46:155:27Waning Crescent15Wed
16Thu3:082.83:303.29:230.410:010.26:165:26Waning Crescent16Thu
17Fri3:592.84:083.410:060.510:480.16:175:24New Moon17Fri
18Sat4:472.84:453.510:480.711:330.06:175:23New Moon18Sat
19Sun5:322.85:213.611:280.96:185:22New Moon19Sun
20Mon6:172.75:573.612:160.012:081.16:195:20New Moon20Mon
21Tue7:022.76:323.512:590.012:471.26:205:19Waxing Crescent21Tue
22Wed7:492.67:073.41:420.01:271.36:215:18Waxing Crescent22Wed
23Thu8:382.47:453.22:270.12:081.46:235:16Waxing Crescent23Thu
24Fri9:282.38:283.03:140.12:571.56:245:15Waxing Crescent24Fri
25Sat10:202.39:202.84:050.24:001.56:255:14First Quarter25Sat
26Sun11:122.210:222.64:570.25:091.46:265:13First Quarter26Sun
27Mon12:032.35:500.26:141.26:275:12First Quarter27Mon
28Tue12:512.56:390.27:110.96:285:10First Quarter28Tue
29Wed12:392.41:362.77:260.38:040.66:295:09Waxing Gibbous29Wed
30Thu1:442.52:183.08:090.48:540.36:305:08Waxing Gibbous30Thu
31Fri2:442.62:583.38:520.59:430.16:315:07Waxing Gibbous31Fri
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 spring phase. Tonight's moon is 14% 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 maximum.

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 (14% illuminated). This places Blackslough Landing, San Joaquin River, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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