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

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 1:29 pm (0.0 ft)
Next high tide : in 1h 20m at 5:57 am (4.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:46 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Aug 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:274.15:392.811:320.211:111.56:098:14New Moon1Fri
2Sat5:114.16:202.912:150.26:098:13New Moon2Sat
3Sun5:534.06:592.912:550.26:108:12New Moon3Sun
4Mon6:343.87:383.012:461.41:350.26:118:11New Moon4Mon
5Tue7:153.68:163.01:321.32:130.36:128:10Waxing Crescent5Tue
6Wed7:563.48:553.02:181.32:500.46:138:09Waxing Crescent6Wed
7Thu8:393.19:343.03:051.23:260.66:148:08Waxing Crescent7Thu
8Fri9:262.810:133.13:551.14:000.76:158:07Waxing Crescent8Fri
9Sat10:192.610:543.24:501.04:341.06:158:06First Quarter9Sat
10Sun11:182.411:363.35:491.05:091.26:168:05First Quarter10Sun
11Mon12:232.36:490.95:521.46:178:03First Quarter11Mon
12Tue12:233.41:312.37:470.76:531.56:188:02First Quarter12Tue
13Wed1:153.62:362.48:420.57:571.66:198:01Waxing Gibbous13Wed
14Thu2:103.83:352.59:330.48:561.66:208:00Waxing Gibbous14Thu
15Fri3:064.04:272.710:230.29:531.56:217:58Waxing Gibbous15Fri
16Sat4:004.25:152.911:100.110:491.46:227:57Waxing Gibbous16Sat
17Sun4:534.35:593.211:560.011:461.26:227:56Full Moon17Sun
18Mon5:444.36:433.412:410.06:237:55Full Moon18Mon
19Tue6:374.17:283.512:421.01:260.16:247:53Full Moon19Tue
20Wed7:303.98:133.71:380.82:090.26:257:52Waning Gibbous20Wed
21Thu8:253.69:003.72:350.62:530.46:267:51Waning Gibbous21Thu
22Fri9:243.29:493.83:330.53:380.76:277:49Waning Gibbous22Fri
23Sat10:252.910:413.84:340.54:270.96:287:48Third Quarter23Sat
24Sun11:282.611:353.85:380.55:221.26:287:46Third Quarter24Sun
25Mon12:342.46:410.56:211.36:297:45Third Quarter25Mon
26Tue12:313.71:402.47:420.57:231.46:307:44Third Quarter26Tue
27Wed1:283.72:442.48:390.48:211.46:317:42Waning Crescent27Wed
28Thu2:253.73:392.59:310.49:161.46:327:41Waning Crescent28Thu
29Fri3:193.74:262.710:180.410:071.36:337:39Waning Crescent29Fri
30Sat4:083.75:072.811:020.310:561.26:347:38Waning Crescent30Sat
31Sun4:543.75:452.911:430.311:431.16:347:36New Moon31Sun
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 9:43 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 spring phase. Tonight's moon is 99% 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 Full Moon (99% 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