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

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 3:34 pm (0.7 ft)
Next high tide : in 3h 55m at 9:22 am (2.7 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:10 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jul 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:282.65:291.35:270.45:478:32Third Quarter1Mon
2Tue12:002.911:43 AM2.36:371.06:020.65:488:32Third Quarter2Tue
3Wed12:393.21:052.27:400.76:391.05:488:32Third Quarter3Wed
4Thu1:203.62:242.28:380.47:221.35:498:31Waning Crescent4Thu
5Fri2:064.03:372.39:340.18:121.65:498:31Waning Crescent5Fri
6Sat2:554.44:422.510:28-0.19:091.85:508:31Waning Crescent6Sat
7Sun3:474.75:382.611:22-0.310:101.95:508:31New Moon7Sun
8Mon4:404.96:302.712:14-0.45:518:30New Moon8Mon
9Tue5:324.97:192.81:04-0.45:528:30New Moon9Tue
10Wed6:254.88:082.912:181.81:52-0.45:528:30New Moon10Wed
11Thu7:184.58:552.91:211.72:38-0.35:538:29Waxing Crescent11Thu
12Fri8:124.09:423.02:241.53:23-0.25:548:29Waxing Crescent12Fri
13Sat9:093.510:283.13:281.34:070.05:548:28Waxing Crescent13Sat
14Sun10:093.011:133.24:341.14:500.35:558:28First Quarter14Sun
15Mon11:112.511:573.35:410.95:340.65:568:27First Quarter15Mon
16Tue12:182.26:460.86:190.95:578:27First Quarter16Tue
17Wed12:423.41:272.07:470.67:061.25:578:26First Quarter17Wed
18Thu1:273.52:382.08:420.57:551.55:588:25Waxing Gibbous18Thu
19Fri2:133.73:442.29:340.48:441.75:598:25Waxing Gibbous19Fri
20Sat2:593.94:392.310:220.49:321.96:008:24Waxing Gibbous20Sat
21Sun3:454.05:252.511:080.310:191.96:008:23Waxing Gibbous21Sun
22Mon4:294.26:062.611:520.311:061.96:018:23Full Moon22Mon
23Tue5:104.26:452.712:340.26:028:22Full Moon23Tue
24Wed5:494.17:242.71:140.16:038:21Full Moon24Wed
25Thu6:274.08:032.712:391.81:520.16:048:20Full Moon25Thu
26Fri7:053.88:412.71:251.72:280.06:048:19Waning Gibbous26Fri
27Sat7:453.59:182.82:121.53:020.16:058:18Waning Gibbous27Sat
28Sun8:293.29:532.93:031.43:340.36:068:18Waning Gibbous28Sun
29Mon9:212.810:293.13:591.24:020.56:078:17Waning Gibbous29Mon
30Tue10:242.511:063.35:021.04:270.86:088:16Third Quarter30Tue
31Wed11:372.311:483.66:080.84:491.16:098:15Third Quarter31Wed
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 12:28 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 transitional phase. Tonight's moon is 74% 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 Waning Gibbous (74% 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