37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

59°
H 81°
L 56°
SW
7mph
High tide
10:23 am

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

TIDE TIMES for Wednesday, September 16, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 3:38 pm (1.6 ft)
Next high tide : in 2h 50m at 10:23 am (2.4 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 - Dec 1866

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:412.21:163.16:580.48:010.47:104:53Waning Crescent1Sat
2Sun1:462.12:003.27:450.68:510.27:114:53Waning Crescent2Sun
3Mon2:452.12:413.48:300.89:380.07:124:53Waning Crescent3Mon
4Tue3:382.23:213.69:141.010:22-0.17:134:53Waning Crescent4Tue
5Wed4:252.33:593.79:571.211:05-0.17:144:53New Moon5Wed
6Thu5:102.54:353.810:401.311:46-0.27:144:53New Moon6Thu
7Fri5:532.55:113.811:221.47:154:53New Moon7Fri
8Sat6:362.65:453.712:27-0.212:031.57:164:53New Moon8Sat
9Sun7:202.66:193.51:08-0.212:451.57:174:53Waxing Crescent9Sun
10Mon8:042.56:533.31:48-0.21:281.57:184:53Waxing Crescent10Mon
11Tue8:492.57:333.12:28-0.12:171.57:194:53Waxing Crescent11Tue
12Wed9:342.58:202.83:08-0.13:171.47:194:53Waxing Crescent12Wed
13Thu10:182.69:202.53:500.04:241.27:204:54First Quarter13Thu
14Fri11:022.710:342.34:330.25:321.07:214:54First Quarter14Fri
15Sat11:473.011:532.25:190.46:350.77:214:54First Quarter15Sat
16Sun12:333.36:080.67:330.47:224:54First Quarter16Sun
17Mon1:092.21:203.66:580.88:280.17:234:55Waxing Gibbous17Mon
18Tue2:192.32:094.07:491.09:21-0.27:234:55Waxing Gibbous18Tue
19Wed3:222.42:594.38:411.110:12-0.47:244:56Waxing Gibbous19Wed
20Thu4:182.63:484.59:351.311:03-0.57:244:56Full Moon20Thu
21Fri5:112.84:374.610:301.311:53-0.67:254:56Full Moon21Fri
22Sat6:022.95:264.511:271.37:254:57Full Moon22Sat
23Sun6:522.96:174.312:41-0.612:241.37:264:58Waning Gibbous23Sun
24Mon7:423.07:093.91:29-0.51:221.37:264:58Waning Gibbous24Mon
25Tue8:323.08:033.52:15-0.42:231.27:274:59Waning Gibbous25Tue
26Wed9:223.09:003.03:02-0.23:261.17:274:59Waning Gibbous26Wed
27Thu10:113.010:012.63:500.04:311.07:275:00Third Quarter27Thu
28Fri11:003.011:042.24:380.35:360.87:285:01Third Quarter28Fri
29Sat11:483.15:280.56:380.67:285:01Third Quarter29Sat
30Sun12:102.012:353.26:170.77:340.57:285:02Third Quarter30Sun
31Mon1:162.01:223.47:060.98:260.37:285:03Waning Crescent31Mon
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