37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

83°
H -°
L 57°
WNW
7mph
Low tide
9:18 pm

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 2h 40m at 9:18 pm (1.5 ft)
Next high tide (tomorrow) : 3:22 am (3.9 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 - Apr 1883

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:112.111:29 AM3.05:501.37:000.15:576:35Third Quarter1Sun
2Mon1:062.312:413.07:001.17:500.15:566:36Waning Crescent2Mon
3Tue1:572.51:503.08:020.98:380.15:546:37Waning Crescent3Tue
4Wed2:442.82:533.18:580.59:240.25:536:38Waning Crescent4Wed
5Thu3:273.13:523.19:530.210:090.35:516:39Waning Crescent5Thu
6Fri4:103.54:473.110:47-0.110:530.55:506:40New Moon6Fri
7Sat4:533.85:413.111:39-0.311:380.65:486:41New Moon7Sat
8Sun5:364.06:353.012:31-0.45:476:41New Moon8Sun
9Mon6:214.17:292.912:230.81:23-0.55:456:42Waxing Crescent9Mon
10Tue7:084.08:252.71:101.02:16-0.45:446:43Waxing Crescent10Tue
11Wed7:593.99:222.62:011.13:11-0.35:426:44Waxing Crescent11Wed
12Thu8:543.610:202.42:571.24:08-0.15:416:45First Quarter12Thu
13Fri9:533.311:182.44:011.35:050.05:396:46First Quarter13Fri
14Sat10:543.05:101.26:020.15:386:47First Quarter14Sat
15Sun12:142.411:58 AM2.76:161.16:550.25:376:48First Quarter15Sun
16Mon1:072.41:022.67:180.97:440.25:356:49Waxing Gibbous16Mon
17Tue1:552.52:022.58:130.68:290.35:346:50Waxing Gibbous17Tue
18Wed2:382.72:572.59:030.49:120.45:326:51Waxing Gibbous18Wed
19Thu3:172.93:472.59:500.29:530.65:316:52Waxing Gibbous19Thu
20Fri3:543.14:342.510:350.110:330.75:306:52Full Moon20Fri
21Sat4:293.25:182.611:180.011:120.95:286:53Full Moon21Sat
22Sun5:033.46:012.612:00-0.15:276:54Full Moon22Sun
23Mon5:363.56:452.612:42-0.15:266:55Full Moon23Mon
24Tue6:083.57:312.512:251.21:23-0.15:246:56Waning Gibbous24Tue
25Wed6:403.48:182.412:581.32:06-0.15:236:57Waning Gibbous25Wed
26Thu7:143.39:072.31:281.42:51-0.15:226:58Waning Gibbous26Thu
27Fri7:543.29:582.31:591.43:39-0.15:216:59Waning Gibbous27Fri
28Sat8:443.010:492.32:521.44:300.05:197:00Third Quarter28Sat
29Sun9:452.811:402.44:221.45:230.05:187:01Third Quarter29Sun
30Mon10:592.75:421.26:160.15:177:02Third Quarter30Mon
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