37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

80°
H -°
L 62°
WSW
8mph
Low tide
11:31 pm

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

TIDE TIMES for Wednesday, August 26, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 3h 24m at 11:31 pm (1.3 ft)
Next high tide (tomorrow) : 5:25 am (3.6 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 6:30 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - May 1915

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:004.47:482.61:29-0.75:106:55Waning Gibbous1Sat
2Sun6:494.38:442.512:431.62:23-0.55:086:56Waning Gibbous2Sun
3Mon7:434.19:422.41:391.63:18-0.45:076:57Waning Gibbous3Mon
4Tue8:433.710:392.42:471.64:15-0.35:066:58Third Quarter4Tue
5Wed9:483.311:342.44:041.55:11-0.15:056:59Third Quarter5Wed
6Thu10:572.85:221.36:040.05:047:00Third Quarter6Thu
7Fri12:262.512:062.56:331.06:530.15:037:00Third Quarter7Fri
8Sat1:132.61:152.27:360.67:390.35:027:01Waning Crescent8Sat
9Sun1:562.82:202.18:310.38:210.55:017:02Waning Crescent9Sun
10Mon2:353.03:192.19:210.19:020.75:007:03Waning Crescent10Mon
11Tue3:123.34:112.210:07-0.19:421.04:597:04Waning Crescent11Tue
12Wed3:473.54:582.310:50-0.210:211.24:587:05New Moon12Wed
13Thu4:213.65:432.411:32-0.211:001.44:577:06New Moon13Thu
14Fri4:553.76:272.412:14-0.24:567:07New Moon14Fri
15Sat5:283.87:122.412:56-0.24:557:08New Moon15Sat
16Sun6:003.77:582.412:121.71:39-0.14:547:09Waxing Crescent16Sun
17Mon6:343.68:462.312:441.82:22-0.14:537:09Waxing Crescent17Mon
18Tue7:113.49:342.21:121.73:07-0.14:537:10Waxing Crescent18Tue
19Wed7:543.210:212.21:541.73:52-0.14:527:11Waxing Crescent19Wed
20Thu8:452.911:052.23:201.64:38-0.14:517:12First Quarter20Thu
21Fri9:492.611:482.44:491.45:230.04:507:13First Quarter21Fri
22Sat11:062.36:011.16:070.24:507:14First Quarter22Sat
23Sun12:292.612:272.27:040.76:490.44:497:14First Quarter23Sun
24Mon1:093.01:442.18:010.37:310.74:487:15Waxing Gibbous24Mon
25Tue1:503.42:542.28:55-0.18:131.04:487:16Waxing Gibbous25Tue
26Wed2:333.93:572.49:48-0.48:571.34:477:17Waxing Gibbous26Wed
27Thu3:174.34:542.510:40-0.69:451.54:477:18Full Moon27Thu
28Fri4:034.65:492.611:32-0.710:361.74:467:18Full Moon28Fri
29Sat4:514.76:422.712:24-0.74:467:19Full Moon29Sat
30Sun5:414.77:352.61:14-0.64:457:20Waning Gibbous30Sun
31Mon6:334.48:282.612:321.72:05-0.54:457:20Waning Gibbous31Mon
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 spring phase. Tonight's moon is 98% 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 Full Moon (98% 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