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 3h 28m at 2:30 am (1.6 ft)
Next high tide : 8:19 am (4.0 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jan 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:352.22:213.98:051.19:280.07:214:56Waxing Gibbous1Thu
2Fri3:342.33:084.18:561.310:16-0.17:214:57Waxing Gibbous2Fri
3Sat4:242.53:534.19:461.411:02-0.17:214:58Full Moon3Sat
4Sun5:102.64:354.110:351.411:45-0.17:214:59Full Moon4Sun
5Mon5:522.75:164.011:241.47:215:00Full Moon5Mon
6Tue6:342.75:563.812:26-0.112:111.47:215:01Full Moon6Tue
7Wed7:152.76:363.51:06-0.112:571.47:215:02Waning Gibbous7Wed
8Thu7:572.77:163.21:450.01:451.37:215:02Waning Gibbous8Thu
9Fri8:382.78:002.92:240.12:361.27:215:03Waning Gibbous9Fri
10Sat9:192.78:482.63:020.23:311.17:215:04Waning Gibbous10Sat
11Sun10:012.89:442.33:400.44:311.07:215:05Third Quarter11Sun
12Mon10:432.910:482.14:190.65:330.97:215:06Third Quarter12Mon
13Tue11:263.011:582.05:000.86:320.77:205:07Third Quarter13Tue
14Wed12:123.35:461.07:270.57:205:08Third Quarter14Wed
15Thu1:082.01:003.56:371.28:190.37:205:09Waning Crescent15Thu
16Fri2:132.21:493.87:291.39:090.17:195:10Waning Crescent16Fri
17Sat3:112.32:384.08:221.49:57-0.17:195:12Waning Crescent17Sat
18Sun4:032.53:274.29:161.510:44-0.27:195:13Waning Crescent18Sun
19Mon4:512.74:164.310:111.411:30-0.37:185:14New Moon19Mon
20Tue5:372.95:054.311:071.37:185:15New Moon20Tue
21Wed6:223.05:554.212:15-0.412:031.27:175:16New Moon21Wed
22Thu7:083.26:473.912:59-0.31:001.07:175:17Waxing Crescent22Thu
23Fri7:543.37:433.51:43-0.21:590.97:165:18Waxing Crescent23Fri
24Sat8:423.48:423.12:270.03:010.77:155:19Waxing Crescent24Sat
25Sun9:313.59:452.73:130.24:060.67:155:20First Quarter25Sun
26Mon10:223.510:512.44:010.55:130.57:145:21First Quarter26Mon
27Tue11:143.64:540.86:180.47:135:22First Quarter27Tue
28Wed12:002.212:093.75:501.07:190.37:135:24First Quarter28Wed
29Thu1:102.11:033.76:481.28:150.27:125:25Waxing Gibbous29Thu
30Fri2:162.21:573.87:441.39:060.27:115:26Waxing Gibbous30Fri
31Sat3:142.32:473.88:381.49:540.17:105:27Waxing Gibbous31Sat
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 5:24 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 10% 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 (10% 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