37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

54°
H -°
L 49°
WSW
7mph
High tide
7:35 am

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

TIDE TIMES for Monday, September 28, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 1:14 pm (1.1 ft)
Next high tide : in 6h 00m at 7:35 am (2.9 ft)
Sunset today : 6:53 pm
Sunrise tomorrow : 6:58 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Dec 1847

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:062.112:512.86:350.47:340.57:104:53Waning Crescent1Wed
2Thu1:102.01:343.07:210.68:250.37:104:53Waning Crescent2Thu
3Fri2:112.02:163.28:050.89:120.17:114:53Waning Crescent3Fri
4Sat3:072.12:563.48:480.99:570.07:124:53Waning Crescent4Sat
5Sun3:572.33:343.69:301.110:41-0.17:134:53Waning Crescent5Sun
6Mon4:442.44:113.810:111.311:23-0.27:144:53New Moon6Mon
7Tue5:292.54:463.910:521.47:154:53New Moon7Tue
8Wed6:132.65:223.912:05-0.211:33 AM1.57:164:53New Moon8Wed
9Thu6:582.65:583.812:47-0.312:151.57:174:53Waxing Crescent9Thu
10Fri7:442.66:373.61:28-0.31:001.57:174:53Waxing Crescent10Fri
11Sat8:302.67:233.42:10-0.31:531.47:184:53Waxing Crescent11Sat
12Sun9:172.78:173.12:53-0.22:571.37:194:53Waxing Crescent12Sun
13Mon10:042.89:232.73:38-0.14:091.27:204:54First Quarter13Mon
14Tue10:522.910:382.54:260.15:210.97:214:54First Quarter14Tue
15Wed11:413.211:552.35:160.36:280.67:214:54First Quarter15Wed
16Thu12:313.46:080.57:290.37:224:54First Quarter16Thu
17Fri1:102.21:213.77:010.78:260.07:234:55Waxing Gibbous17Fri
18Sat2:202.32:114.07:541.09:20-0.27:234:55Waxing Gibbous18Sat
19Sun3:222.43:014.38:461.110:12-0.47:244:55Waxing Gibbous19Sun
20Mon4:192.63:494.49:391.311:01-0.47:244:56Full Moon20Mon
21Tue5:102.74:364.410:321.311:49-0.47:254:56Full Moon21Tue
22Wed5:582.85:224.311:251.47:254:57Full Moon22Wed
23Thu6:452.86:074.112:34-0.412:181.47:264:57Waning Gibbous23Thu
24Fri7:322.86:533.71:19-0.31:111.47:264:58Waning Gibbous24Fri
25Sat8:182.87:403.32:02-0.22:051.37:274:59Waning Gibbous25Sat
26Sun9:042.88:302.92:45-0.13:011.27:274:59Waning Gibbous26Sun
27Mon9:492.89:242.63:290.14:011.17:275:00Third Quarter27Mon
28Tue10:342.810:232.34:130.35:041.07:285:00Third Quarter28Tue
29Wed11:192.911:272.04:590.56:040.87:285:01Third Quarter29Wed
30Thu12:043.05:460.77:020.67:285:02Third Quarter30Thu
31Fri12:331.912:503.26:340.97:560.47:285:03Waning Crescent31Fri
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 95% 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 Gibbous (95% 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