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

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 49m at 7:30 am (0.6 ft)
Next high tide : 1:03 pm (2.1 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:50 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:312.43:212.89:270.810:000.26:497:29Waning Crescent1Wed
2Thu4:112.64:172.710:210.610:410.36:477:30Waning Crescent2Thu
3Fri4:472.85:072.711:100.311:200.46:467:31New Moon3Fri
4Sat5:223.05:532.611:550.111:580.66:447:32New Moon4Sat
5Sun5:553.26:382.612:380.06:437:32New Moon5Sun
6Mon6:273.37:222.612:340.81:200.06:417:33New Moon6Mon
7Tue6:583.48:062.51:091.02:020.06:407:34New Moon7Tue
8Wed7:293.58:532.41:421.22:450.06:387:35Waxing Crescent8Wed
9Thu8:003.49:412.32:101.43:300.16:377:36Waxing Crescent9Thu
10Fri8:353.410:332.22:281.54:180.16:357:37Waxing Crescent10Fri
11Sat9:153.311:272.12:351.65:110.26:347:38Waxing Crescent11Sat
12Sun10:043.13:051.66:070.16:337:39First Quarter12Sun
13Mon12:222.011:04 AM2.94:131.67:010.16:317:40First Quarter13Mon
14Tue1:162.012:152.86:511.47:520.06:307:41First Quarter14Tue
15Wed2:052.21:312.78:011.18:390.16:287:42First Quarter15Wed
16Thu2:492.42:432.69:010.79:220.26:277:43Waxing Gibbous16Thu
17Fri3:302.83:492.69:560.310:040.36:267:44Waxing Gibbous17Fri
18Sat4:103.24:492.710:490.010:450.66:247:45Waxing Gibbous18Sat
19Sun4:493.65:462.711:42-0.411:270.86:237:45Full Moon19Sun
20Mon5:293.96:412.812:33-0.66:217:46Full Moon20Mon
21Tue6:114.27:362.712:091.11:25-0.76:207:47Full Moon21Tue
22Wed6:554.38:312.612:531.32:17-0.76:197:48Waning Gibbous22Wed
23Thu7:434.39:282.51:401.43:10-0.56:187:49Waning Gibbous23Thu
24Fri8:354.110:252.42:321.54:05-0.46:167:50Waning Gibbous24Fri
25Sat9:333.811:232.43:331.55:02-0.26:157:51Third Quarter25Sat
26Sun10:353.44:451.55:58-0.16:147:52Third Quarter26Sun
27Mon12:192.311:41 AM3.06:011.36:530.06:137:53Third Quarter27Mon
28Tue1:132.412:492.67:131.17:440.16:117:54Third Quarter28Tue
29Wed2:032.51:562.38:180.88:310.26:107:55Waning Crescent29Wed
30Thu2:472.63:012.29:140.59:150.46:097:56Waning Crescent30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

Common Questions About Blackslough Landing, San Joaquin River, CA Tides

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What time does the tide turn (slack tide) in Blackslough Landing, San Joaquin River, CA today?

Slack tide in Blackslough Landing, San Joaquin River, CA is approximately 10:16 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 39% 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 Third Quarter (39% 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