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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 5:19 am (1.1 ft)
Next high tide : in 4h 33m at 10:57 pm (2.9 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - May 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:153.15:331.46:32-0.16:097:56First Quarter1Tue
2Wed12:542.412:232.76:481.27:240.06:087:57First Quarter2Wed
3Thu1:452.51:322.47:560.98:120.26:067:58Waxing Gibbous3Thu
4Fri2:302.62:392.28:560.58:570.36:057:59Waxing Gibbous4Fri
5Sat3:122.83:412.19:490.39:390.56:047:59Waxing Gibbous5Sat
6Sun3:503.04:362.210:370.010:190.86:038:00Waxing Gibbous6Sun
7Mon4:263.35:262.211:21-0.110:591.06:028:01Full Moon7Mon
8Tue5:013.56:122.312:04-0.26:018:02Full Moon8Tue
9Wed5:343.66:562.412:46-0.26:008:03Full Moon9Wed
10Thu6:073.77:402.512:151.41:28-0.25:598:04Full Moon10Thu
11Fri6:403.78:262.412:511.62:10-0.15:588:05Full Moon11Fri
12Sat7:123.79:132.41:251.72:53-0.15:578:06Waning Gibbous12Sat
13Sun7:463.510:012.31:531.73:37-0.15:568:07Waning Gibbous13Sun
14Mon8:253.310:492.22:201.74:22-0.15:558:08Waning Gibbous14Mon
15Tue9:113.111:362.23:101.65:08-0.15:558:08Waning Gibbous15Tue
16Wed10:072.84:481.55:55-0.15:548:09Third Quarter16Wed
17Thu12:212.311:15 AM2.56:141.36:410.05:538:10Third Quarter17Thu
18Fri1:032.412:352.37:240.97:250.25:528:11Third Quarter18Fri
19Sat1:452.71:562.28:250.58:080.55:518:12Waning Crescent19Sat
20Sun2:263.13:102.29:210.18:510.75:518:13Waning Crescent20Sun
21Mon3:093.64:172.310:15-0.29:341.05:508:14Waning Crescent21Mon
22Tue3:524.05:182.511:08-0.510:201.35:498:14Waning Crescent22Tue
23Wed4:374.46:142.612:00-0.65:498:15New Moon23Wed
24Thu5:244.67:082.612:52-0.75:488:16New Moon24Thu
25Fri6:124.78:012.712:011.61:43-0.75:478:17New Moon25Fri
26Sat7:024.68:542.612:581.72:33-0.65:478:18Waxing Crescent26Sat
27Sun7:554.39:472.61:581.73:24-0.55:468:18Waxing Crescent27Sun
28Mon8:503.810:392.63:021.64:13-0.35:468:19Waxing Crescent28Mon
29Tue9:493.311:282.64:101.45:03-0.25:458:20First Quarter29Tue
30Wed10:522.85:221.25:510.05:458:20First Quarter30Wed
31Thu12:162.711:57 AM2.46:321.06:390.25:448:21First Quarter31Thu
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 2:08 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 transitional phase. Tonight's moon is 71% 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 (71% 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