37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

66°
H -°
L 59°
WNW
4mph
Low tide
6:21 am

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

TIDE TIMES for Saturday, October 3, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 43m at 6:21 am (0.1 ft)
Next high tide : 12:39 pm (2.2 ft)
Sunset today : 6:45 pm
Sunrise tomorrow : 7:03 am
Moon phase : Third Quarter (48% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1837

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:503.36:342.912:041.012:360.45:426:42New Moon1Fri
2Sat6:323.17:053.012:480.81:070.55:436:41Waxing Crescent2Sat
3Sun7:172.97:343.21:330.71:330.85:446:39Waxing Crescent3Sun
4Mon8:072.68:043.32:190.61:511.15:446:38Waxing Crescent4Mon
5Tue9:042.58:383.53:100.61:581.35:456:36Waxing Crescent5Tue
6Wed10:082.39:223.64:100.62:141.65:466:35First Quarter6Wed
7Thu11:182.210:163.75:150.52:461.75:476:33First Quarter7Thu
8Fri12:302.26:200.43:391.95:486:31First Quarter8Fri
9Sat1:382.37:220.36:121.95:496:30Waxing Gibbous9Sat
10Sun12:353.92:352.48:180.17:391.75:506:28Waxing Gibbous10Sun
11Mon1:454.03:222.69:090.08:451.45:506:27Waxing Gibbous11Mon
12Tue2:494.04:052.89:57-0.19:461.15:516:25Waxing Gibbous12Tue
13Wed3:483.94:453.110:410.010:450.75:526:24Full Moon13Wed
14Thu4:443.85:243.311:230.111:410.45:536:22Full Moon14Thu
15Fri5:383.56:033.612:040.35:546:21Full Moon15Fri
16Sat6:323.26:433.712:350.212:430.55:556:19Waning Gibbous16Sat
17Sun7:272.97:243.81:280.01:220.95:566:17Waning Gibbous17Sun
18Mon8:242.78:083.82:220.02:021.25:566:16Waning Gibbous18Mon
19Tue9:242.58:543.73:170.12:451.55:576:14Third Quarter19Tue
20Wed10:252.39:463.64:160.33:361.75:586:13Third Quarter20Wed
21Thu11:302.210:433.55:170.44:411.85:596:11Third Quarter21Thu
22Fri12:352.26:180.45:511.86:006:10Third Quarter22Fri
23Sat1:362.27:140.46:551.76:016:08Waning Crescent23Sat
24Sun12:463.32:252.38:050.47:521.56:026:06Waning Crescent24Sun
25Mon1:443.23:052.48:510.38:441.36:036:05Waning Crescent25Mon
26Tue2:383.23:402.59:320.39:331.06:036:03Waning Crescent26Tue
27Wed3:263.14:132.710:100.210:190.76:046:02Waning Crescent27Wed
28Thu4:123.04:452.910:460.311:040.56:056:00New Moon28Thu
29Fri4:563.05:153.111:200.511:470.46:065:59New Moon29Fri
30Sat5:402.95:443.211:520.76:075:57New Moon30Sat
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 48% 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 (48% 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