37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

63°
H 90°
L 53°
WNW
7mph
High tide
8:36 am

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

TIDE TIMES for Monday, September 14, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 2:27 pm (1.1 ft)
Next high tide : in 59m at 8:36 am (2.8 ft)
Sunset today : 7:15 pm
Sunrise tomorrow : 6:46 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Aug 1871

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:054.66:283.112:19-0.25:157:22Full Moon1Tue
2Wed5:564.47:123.112:011.51:03-0.15:167:21Waning Gibbous2Wed
3Thu6:464.07:573.112:581.31:460.15:177:20Waning Gibbous3Thu
4Fri7:383.58:413.21:541.22:280.25:177:19Waning Gibbous4Fri
5Sat8:323.19:253.22:521.13:100.55:187:18Waning Gibbous5Sat
6Sun9:292.710:093.23:521.03:520.75:197:17Third Quarter6Sun
7Mon10:302.410:533.34:530.94:371.05:207:16Third Quarter7Mon
8Tue11:342.211:393.45:540.85:261.35:217:14Third Quarter8Tue
9Wed12:402.26:510.76:171.55:227:13Third Quarter9Wed
10Thu12:273.51:452.27:450.67:091.65:237:12Waning Crescent10Thu
11Fri1:173.62:442.38:360.58:001.75:237:11Waning Crescent11Fri
12Sat2:063.83:352.59:240.48:491.85:247:10Waning Crescent12Sat
13Sun2:543.94:182.610:090.39:371.75:257:09Waning Crescent13Sun
14Mon3:384.04:592.710:520.210:231.75:267:07New Moon14Mon
15Tue4:204.05:372.811:330.211:101.65:277:06New Moon15Tue
16Wed5:014.06:152.912:110.15:287:05New Moon16Wed
17Thu5:413.86:533.012:480.15:297:03New Moon17Thu
18Fri6:243.67:293.112:431.21:240.25:307:02Waxing Crescent18Fri
19Sat7:113.38:073.21:321.11:580.45:307:01Waxing Crescent19Sat
20Sun8:053.08:453.32:260.92:300.65:316:59Waxing Crescent20Sun
21Mon9:062.79:283.53:250.83:030.95:326:58First Quarter21Mon
22Tue10:142.510:153.74:300.63:381.25:336:57First Quarter22Tue
23Wed11:272.411:093.95:370.54:291.55:346:55First Quarter23Wed
24Thu12:402.36:410.35:441.75:356:54First Quarter24Thu
25Fri12:094.11:502.47:420.26:581.75:366:53Waxing Gibbous25Fri
26Sat1:124.22:522.68:390.18:041.75:376:51Waxing Gibbous26Sat
27Sun2:144.33:442.79:310.09:051.65:376:50Waxing Gibbous27Sun
28Mon3:114.34:302.910:200.010:031.45:386:48Full Moon28Mon
29Tue4:054.35:123.011:070.010:581.25:396:47Full Moon29Tue
30Wed4:564.15:533.211:500.111:511.05:406:45Full Moon30Wed
31Thu5:453.86:333.212:310.25:416:44Full Moon31Thu
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 Waxing 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