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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 1h 25m at 1:21 am (1.5 ft)
Next high tide : 7:15 am (4.3 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:55 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:132.68:503.33:110.23:011.37:016:48Waning Gibbous1Sat
2Sun10:042.59:333.24:000.33:441.47:026:47Waning Gibbous2Sun
3Mon10:572.310:213.14:510.44:361.57:036:45Third Quarter3Mon
4Tue11:532.211:162.95:470.45:381.57:046:44Third Quarter4Tue
5Wed12:482.26:430.46:441.47:056:42Third Quarter5Wed
6Thu12:162.81:422.37:360.47:451.37:066:41Third Quarter6Thu
7Fri1:192.82:322.48:260.38:401.17:066:39Waning Crescent7Fri
8Sat2:202.83:172.69:110.39:310.87:076:38Waning Crescent8Sat
9Sun3:182.83:582.99:540.310:190.67:086:36Waning Crescent9Sun
10Mon4:112.94:373.210:350.411:070.37:096:35Waning Crescent10Mon
11Tue5:023.05:143.511:150.511:540.17:106:34New Moon11Tue
12Wed5:523.05:523.711:550.77:116:32New Moon12Wed
13Thu6:423.06:303.912:42-0.112:350.97:126:31New Moon13Thu
14Fri7:333.07:114.01:30-0.21:161.07:136:29Waxing Crescent14Fri
15Sat8:272.97:564.02:20-0.31:591.27:146:28Waxing Crescent15Sat
16Sun9:232.78:473.93:13-0.32:481.37:156:26Waxing Crescent16Sun
17Mon10:222.69:453.74:09-0.23:481.47:166:25Waxing Crescent17Mon
18Tue11:222.510:493.45:07-0.15:001.47:176:24First Quarter18Tue
19Wed12:222.56:070.06:151.37:186:22First Quarter19Wed
20Thu1:192.67:050.07:251.17:196:21First Quarter20Thu
21Fri1:072.92:132.88:000.18:290.87:206:20Waxing Gibbous21Fri
22Sat2:142.83:032.98:500.29:260.57:216:18Waxing Gibbous22Sat
23Sun3:172.73:473.19:370.310:180.37:226:17Waxing Gibbous23Sun
24Mon4:142.74:283.310:220.511:070.17:236:16Waxing Gibbous24Mon
25Tue5:052.75:073.511:050.611:520.07:246:15Full Moon25Tue
26Wed5:532.75:443.611:460.87:256:13Full Moon26Wed
27Thu6:382.76:203.612:36-0.112:271.07:266:12Full Moon27Thu
28Fri7:232.76:553.61:19-0.11:081.27:276:11Full Moon28Fri
29Sat8:082.67:303.52:02-0.11:471.37:286:10Waning Gibbous29Sat
30Sun7:542.57:053.41:450.01:281.46:295:09Waning Gibbous30Sun
31Mon8:432.47:443.22:300.02:111.56:305:08Waning Gibbous31Mon
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 4:18 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 3% 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 New Moon (3% 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