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

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 7:44 pm (1.8 ft)
Next high tide : in 16m at 3:35 pm (2.3 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Crescent (18% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:462.42:392.88:470.99:230.26:497:29Waxing Gibbous1Mon
2Tue3:332.63:372.89:420.710:080.36:477:30Waxing Gibbous2Tue
3Wed4:152.74:282.710:320.510:500.46:467:31Waxing Gibbous3Wed
4Thu4:522.95:162.711:190.311:300.56:447:32Full Moon4Thu
5Fri5:283.16:002.712:030.26:437:33Full Moon5Fri
6Sat6:033.26:432.712:090.612:460.16:417:33Full Moon6Sat
7Sun6:363.37:272.712:460.81:280.06:407:34Full Moon7Sun
8Mon7:093.38:112.61:231.02:100.06:387:35Waning Gibbous8Mon
9Tue7:413.38:572.51:571.12:520.06:377:36Waning Gibbous9Tue
10Wed8:133.39:452.42:291.23:360.16:357:37Waning Gibbous10Wed
11Thu8:483.210:362.22:551.34:240.16:347:38Waning Gibbous11Thu
12Fri9:303.111:292.23:181.45:160.16:327:39Waning Gibbous12Fri
13Sat10:223.04:111.46:110.16:317:40Third Quarter13Sat
14Sun12:232.211:27 AM2.85:581.47:050.16:307:41Third Quarter14Sun
15Mon1:162.312:402.77:141.27:570.16:287:42Third Quarter15Mon
16Tue2:072.41:552.78:180.98:460.16:277:43Waning Crescent16Tue
17Wed2:552.73:042.79:170.59:330.26:257:44Waning Crescent17Wed
18Thu3:403.14:072.810:120.210:190.46:247:45Waning Crescent18Thu
19Fri4:233.45:062.911:05-0.111:040.66:237:45Waning Crescent19Fri
20Sat5:073.86:012.911:58-0.411:500.76:217:46New Moon20Sat
21Sun5:504.16:552.912:50-0.56:207:47New Moon21Sun
22Mon6:354.27:492.912:360.91:41-0.66:197:48New Moon22Mon
23Tue7:224.28:432.81:241.12:33-0.66:187:49Waxing Crescent23Tue
24Wed8:114.19:392.72:151.23:25-0.46:167:50Waxing Crescent24Wed
25Thu9:043.810:342.63:101.34:18-0.36:157:51Waxing Crescent25Thu
26Fri10:003.411:302.54:111.35:13-0.16:147:52First Quarter26Fri
27Sat11:003.15:181.26:080.06:137:53First Quarter27Sat
28Sun12:252.512:032.76:271.17:020.16:117:54First Quarter28Sun
29Mon1:172.51:082.57:320.97:530.26:107:55First Quarter29Mon
30Tue2:072.62:122.38:310.78:400.36:097:56Waxing Gibbous30Tue
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 5:39 pm — 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 spring phase. Tonight's moon is 18% 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 (18% 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