37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

72°
H 87°
L 56°
WSW
4mph
Low tide
1:14 pm

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

TIDE TIMES for Saturday, September 12, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 25m at 1:14 pm (0.5 ft)
Next high tide : 7:13 pm (3.5 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 6:45 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1875

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:563.56:353.212:050.812:340.35:426:42New Moon1Wed
2Thu6:433.27:103.212:540.71:100.55:436:41Waxing Crescent2Thu
3Fri7:322.97:463.31:420.61:450.85:436:39Waxing Crescent3Fri
4Sat8:242.68:223.32:310.52:181.15:446:38Waxing Crescent4Sat
5Sun9:182.49:013.33:230.62:501.45:456:36First Quarter5Sun
6Mon10:172.39:443.44:190.63:191.65:466:35First Quarter6Mon
7Tue11:202.210:353.45:190.73:181.85:476:33First Quarter7Tue
8Wed12:262.26:200.65:281.95:486:32First Quarter8Wed
9Thu1:302.27:170.66:391.95:496:30First Quarter9Thu
10Fri12:343.42:252.38:090.47:381.85:496:29Waxing Gibbous10Fri
11Sat1:333.53:102.48:560.38:321.65:506:27Waxing Gibbous11Sat
12Sun2:283.53:482.59:390.29:231.35:516:26Waxing Gibbous12Sun
13Mon3:183.64:242.710:190.110:131.05:526:24Full Moon13Mon
14Tue4:073.54:572.910:560.111:020.75:536:22Full Moon14Tue
15Wed4:553.45:313.211:320.211:510.55:546:21Full Moon15Wed
16Thu5:443.36:043.412:060.55:556:19Full Moon16Thu
17Fri6:363.16:393.712:410.212:390.75:556:18Waning Gibbous17Fri
18Sat7:322.87:163.91:320.11:101.05:566:16Waning Gibbous18Sat
19Sun8:322.68:004.02:270.01:401.35:576:15Waning Gibbous19Sun
20Mon9:362.48:514.03:270.02:111.65:586:13Third Quarter20Mon
21Tue10:442.39:514.04:320.12:551.85:596:12Third Quarter21Tue
22Wed11:542.210:593.85:380.24:401.96:006:10Third Quarter22Wed
23Thu1:032.36:420.26:111.86:016:08Third Quarter23Thu
24Fri12:113.72:032.47:400.17:231.66:026:07Waning Crescent24Fri
25Sat1:203.62:512.58:320.18:261.36:026:05Waning Crescent25Sat
26Sun2:233.53:312.79:180.19:221.06:036:04Waning Crescent26Sun
27Mon3:193.34:082.910:000.210:150.76:046:02New Moon27Mon
28Tue4:113.24:433.110:400.311:040.46:056:01New Moon28Tue
29Wed4:593.05:163.211:170.411:500.26:065:59New Moon29Wed
30Thu5:452.95:493.311:540.76:075:58New Moon30Thu
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 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