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

TIDE TIMES for Thursday, June 18, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 5h 04m at 3:39 pm (-0.3 ft)
Next high tide : 10:03 pm (2.8 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Mar 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:253.45:343.711:380.46:365:59New Moon1Sat
2Sun6:083.56:253.512:070.112:310.36:356:00New Moon2Sun
3Mon6:513.67:173.212:500.21:240.26:336:01Waxing Crescent3Mon
4Tue7:353.68:102.91:320.52:160.26:326:02Waxing Crescent4Tue
5Wed8:203.69:042.62:150.73:100.36:316:03Waxing Crescent5Wed
6Thu9:083.510:012.43:000.94:070.36:296:04First Quarter6Thu
7Fri9:573.410:592.23:501.15:060.46:286:05First Quarter7Fri
8Sat10:503.24:471.36:050.46:266:06First Quarter8Sat
9Sun12:002.112:463.16:481.38:010.47:257:07First Quarter9Sun
10Mon2:012.11:443.17:481.38:530.47:237:08Waxing Gibbous10Mon
11Tue2:572.22:413.18:451.29:410.37:227:09Waxing Gibbous11Tue
12Wed3:462.33:343.19:371.110:250.37:207:09Waxing Gibbous12Wed
13Thu4:292.54:233.110:260.911:070.27:197:10Waxing Gibbous13Thu
14Fri5:072.75:093.111:140.711:470.37:177:11Full Moon14Fri
15Sat5:442.85:523.111:590.67:167:12Full Moon15Sat
16Sun6:193.06:353.112:240.312:430.47:147:13Full Moon16Sun
17Mon6:533.17:183.01:000.51:260.37:137:14Full Moon17Mon
18Tue7:263.38:032.81:350.62:100.37:117:15Waning Gibbous18Tue
19Wed8:003.48:512.72:070.82:550.27:107:16Waning Gibbous19Wed
20Thu8:353.49:442.52:361.03:440.27:087:17Waning Gibbous20Thu
21Fri9:163.510:412.43:041.14:390.27:077:18Waning Gibbous21Fri
22Sat10:063.411:432.33:371.35:390.17:057:19Third Quarter22Sat
23Sun11:053.44:391.46:410.17:037:20Third Quarter23Sun
24Mon12:462.312:133.36:161.47:420.17:027:21Third Quarter24Mon
25Tue1:482.31:253.37:351.28:380.07:007:22Waning Crescent25Tue
26Wed2:452.52:353.38:421.09:300.06:597:23Waning Crescent26Wed
27Thu3:372.83:393.39:430.710:190.16:577:24Waning Crescent27Thu
28Fri4:253.04:383.310:400.411:060.16:567:25Waning Crescent28Fri
29Sat5:093.35:333.211:340.211:510.36:547:25New Moon29Sat
30Sun5:513.56:253.212:260.06:537:26New Moon30Sun
31Mon6:333.77:153.012:350.41:16-0.16:517:27New Moon31Mon
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 6:51 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 19% 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 Crescent (19% 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