37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

59°
H -°
L 51°
WSW
8mph
High tide
11:56 pm

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

TIDE TIMES for Saturday, September 5, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 7:48 am (0.3 ft)
Next high tide (tomorrow) : in 37m at 11:56 pm (4.0 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 6:38 am
Moon phase : Third Quarter (45% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1889

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:592.59:493.64:080.53:141.35:356:34First Quarter1Sun
2Mon11:092.410:453.85:140.44:031.55:366:33First Quarter2Mon
3Tue12:202.36:200.35:271.75:376:31First Quarter3Tue
4Wed1:292.47:210.26:451.75:386:30Waxing Gibbous4Wed
5Thu12:534.02:302.68:180.17:521.65:396:28Waxing Gibbous5Thu
6Fri1:574.13:222.79:110.08:531.45:406:27Waxing Gibbous6Fri
7Sat2:574.14:082.910:000.09:511.25:406:25Waxing Gibbous7Sat
8Sun3:524.14:513.110:460.010:461.05:416:24Full Moon8Sun
9Mon4:443.95:323.211:300.111:390.75:426:22Full Moon9Mon
10Tue5:343.76:123.312:120.25:436:21Full Moon10Tue
11Wed6:233.46:513.412:300.612:520.45:446:19Waning Gibbous11Wed
12Thu7:143.17:313.41:200.51:320.75:456:18Waning Gibbous12Thu
13Fri8:052.88:113.42:110.42:120.95:466:16Waning Gibbous13Fri
14Sat8:592.68:543.33:020.42:531.25:466:15Waning Gibbous14Sat
15Sun9:562.49:393.33:570.53:391.45:476:13Third Quarter15Sun
16Mon10:562.310:293.24:550.54:341.65:486:11Third Quarter16Mon
17Tue11:572.211:243.25:540.55:351.65:496:10Third Quarter17Tue
18Wed12:582.26:510.56:361.65:506:08Third Quarter18Wed
19Thu12:233.21:542.37:430.47:321.55:516:07Waning Crescent19Thu
20Fri1:213.22:422.48:320.38:241.45:526:05Waning Crescent20Fri
21Sat2:153.33:242.69:160.39:131.25:526:04Waning Crescent21Sat
22Sun3:053.34:022.79:580.210:001.05:536:02Waning Crescent22Sun
23Mon3:523.44:382.910:370.210:460.85:546:00New Moon23Mon
24Tue4:373.35:123.111:150.311:310.65:555:59New Moon24Tue
25Wed5:233.25:463.311:510.45:565:57New Moon25Wed
26Thu6:103.16:203.412:170.412:260.65:575:56New Moon26Thu
27Fri7:003.06:553.61:040.212:590.85:585:54Waxing Crescent27Fri
28Sat7:552.87:343.71:540.11:311.15:595:53Waxing Crescent28Sat
29Sun8:552.68:203.72:480.12:061.35:595:51Waxing Crescent29Sun
30Mon9:582.59:143.73:480.12:501.56:005:50First Quarter30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

Common Questions About Blackslough Landing, San Joaquin River, CA Tides

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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 neap phase. Tonight's moon is 45% 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 minimum.

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 Third Quarter (45% illuminated). This places Blackslough Landing, San Joaquin River, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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