37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

64°
H 95°
L 60°
NW
5mph
Low tide
10:25 am

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

TIDE TIMES for Monday, August 24, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 52m at 10:25 am (0.4 ft)
Next high tide : 4:38 pm (2.4 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Gibbous (89% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Aug 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:513.76:573.012:091.412:530.25:087:15Full Moon1Sun
2Mon6:313.47:343.112:551.21:270.35:097:14Waning Gibbous2Mon
3Tue7:143.28:113.21:421.12:000.55:107:13Waning Gibbous3Tue
4Wed8:032.98:493.32:331.02:290.75:117:12Waning Gibbous4Wed
5Thu9:002.79:303.53:290.92:570.95:117:11Third Quarter5Thu
6Fri10:052.510:163.74:320.83:261.25:127:10Third Quarter6Fri
7Sat11:152.411:093.95:360.74:111.45:137:08Third Quarter7Sat
8Sun12:272.36:390.55:301.55:147:07Third Quarter8Sun
9Mon12:084.01:362.47:380.36:501.65:157:06Waning Crescent9Mon
10Tue1:104.22:382.68:340.27:571.65:167:05Waning Crescent10Tue
11Wed2:114.33:322.89:260.19:001.45:177:04Waning Crescent11Wed
12Thu3:094.44:203.010:150.010:001.35:187:03New Moon12Thu
13Fri4:044.45:063.211:020.010:581.15:187:01New Moon13Fri
14Sat4:564.25:503.411:470.111:540.95:197:00New Moon14Sat
15Sun5:474.06:333.512:300.25:206:59Waxing Crescent15Sun
16Mon6:383.77:173.612:480.81:120.45:216:58Waxing Crescent16Mon
17Tue7:303.38:013.61:410.71:540.65:226:56Waxing Crescent17Tue
18Wed8:233.08:463.62:360.72:360.85:236:55Waxing Crescent18Wed
19Thu9:192.79:323.53:310.73:201.15:246:54First Quarter19Thu
20Fri10:172.510:213.54:300.74:081.35:256:52First Quarter20Fri
21Sat11:172.311:123.55:290.75:031.45:256:51First Quarter21Sat
22Sun12:192.26:280.76:011.55:266:50First Quarter22Sun
23Mon12:063.51:202.27:230.66:581.55:276:48Waxing Gibbous23Mon
24Tue1:003.52:162.38:130.57:521.55:286:47Waxing Gibbous24Tue
25Wed1:533.53:042.59:000.48:431.45:296:45Waxing Gibbous25Wed
26Thu2:433.63:462.69:430.49:321.35:306:44Waxing Gibbous26Thu
27Fri3:303.64:252.810:240.310:191.15:316:43Full Moon27Fri
28Sat4:133.65:023.011:030.311:051.05:316:41Full Moon28Sat
29Sun4:563.55:383.111:400.411:500.95:326:40Full Moon29Sun
30Mon5:383.46:123.312:160.55:336:38Full Moon30Mon
31Tue6:223.36:473.412:350.712:500.65:346:37Waning Gibbous31Tue
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 89% 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 Gibbous (89% 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