37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

61°
H 82°
L 56°
WSW
11mph
High tide
7:46 am

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

TIDE TIMES for Sunday, September 13, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 1:51 pm (0.8 ft)
Next high tide : in 1h 50m at 7:46 am (3.0 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 6:46 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Nov 1873

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:072.82:483.18:360.19:180.16:395:13Waxing Gibbous1Sat
2Sun3:122.73:283.59:190.310:11-0.26:405:12Waxing Gibbous2Sun
3Mon4:122.74:073.810:010.611:03-0.56:415:11Full Moon3Mon
4Tue5:082.74:474.110:440.911:53-0.66:425:10Full Moon4Tue
5Wed6:022.75:274.211:271.26:435:09Full Moon5Wed
6Thu6:552.66:094.212:42-0.612:101.46:445:08Waning Gibbous6Thu
7Fri7:492.56:524.01:31-0.512:561.66:455:07Waning Gibbous7Fri
8Sat8:442.57:383.82:21-0.31:461.76:465:06Waning Gibbous8Sat
9Sun9:392.48:293.53:13-0.22:441.86:475:05Waning Gibbous9Sun
10Mon10:352.39:263.14:060.03:521.76:485:04Third Quarter10Mon
11Tue11:282.210:282.85:000.05:051.66:495:04Third Quarter11Tue
12Wed12:182.35:530.16:131.36:505:03Third Quarter12Wed
13Thu1:032.36:410.17:131.06:515:02Third Quarter13Thu
14Fri12:402.31:432.57:260.28:060.76:535:01Waning Crescent14Fri
15Sat1:442.22:202.78:070.38:550.46:545:01Waning Crescent15Sat
16Sun2:422.22:553.08:460.59:410.16:555:00Waning Crescent16Sun
17Mon3:362.23:283.39:230.810:25-0.16:564:59Waning Crescent17Mon
18Tue4:262.34:003.59:581.011:08-0.26:574:59New Moon18Tue
19Wed5:132.44:323.710:321.311:50-0.36:584:58New Moon19Wed
20Thu6:002.55:033.911:031.56:594:57New Moon20Thu
21Fri6:492.55:354.012:34-0.311:29 AM1.77:004:57New Moon21Fri
22Sat7:392.56:124.01:18-0.311:54 AM1.87:014:56Waxing Crescent22Sat
23Sun8:312.46:553.82:05-0.312:291.87:024:56Waxing Crescent23Sun
24Mon9:252.37:463.62:54-0.31:241.87:034:55Waxing Crescent24Mon
25Tue10:182.38:483.33:46-0.33:071.77:044:55First Quarter25Tue
26Wed11:092.410:032.94:39-0.24:471.57:054:55First Quarter26Wed
27Thu11:572.611:242.65:31-0.16:061.17:064:54First Quarter27Thu
28Fri12:442.86:210.07:130.67:074:54First Quarter28Fri
29Sat12:442.31:283.27:090.28:130.27:084:54Waxing Gibbous29Sat
30Sun1:592.22:123.57:540.59:09-0.27:094:53Waxing Gibbous30Sun
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 8% 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 Waxing Crescent (8% 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