37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

73°
H -°
L 57°
WNW
8mph
Low tide
9:18 pm

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

TIDE TIMES for Monday, September 7, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 38m at 9:18 pm (1.5 ft)
Next high tide (tomorrow) : 3:22 am (3.9 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waning Crescent (14% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jan 1883

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:172.911:372.04:560.66:130.77:295:04Third Quarter1Mon
2Tue12:023.15:420.87:090.67:295:05Third Quarter2Tue
3Wed12:441.912:483.36:291.18:020.47:295:05Waning Crescent3Wed
4Thu1:502.01:343.57:171.28:510.27:295:06Waning Crescent4Thu
5Fri2:502.12:193.88:051.49:380.17:295:07Waning Crescent5Fri
6Sat3:422.33:044.08:521.510:23-0.17:295:08Waning Crescent6Sat
7Sun4:302.53:474.19:401.511:07-0.27:295:09New Moon7Sun
8Mon5:142.64:304.210:301.511:50-0.37:295:10New Moon8Mon
9Tue5:582.75:144.111:211.47:295:11New Moon9Tue
10Wed6:402.96:004.012:32-0.312:131.37:285:12New Moon10Wed
11Thu7:243.06:493.71:13-0.31:091.17:285:13Waxing Crescent11Thu
12Fri8:083.17:443.31:54-0.22:071.07:285:14Waxing Crescent12Fri
13Sat8:533.28:442.92:350.03:100.87:285:15Waxing Crescent13Sat
14Sun9:403.49:502.63:170.24:170.77:285:16First Quarter14Sun
15Mon10:303.511:002.34:030.55:260.57:275:17First Quarter15Mon
16Tue11:223.74:550.86:310.47:275:18First Quarter16Tue
17Wed12:132.112:173.85:531.17:330.27:265:19Waxing Gibbous17Wed
18Thu1:252.11:134.06:531.28:290.17:265:20Waxing Gibbous18Thu
19Fri2:332.22:084.17:521.49:220.07:265:21Waxing Gibbous19Fri
20Sat3:312.43:004.18:491.410:110.07:255:22Waxing Gibbous20Sat
21Sun4:202.53:494.19:431.410:56-0.17:255:23Full Moon21Sun
22Mon5:042.74:354.010:361.411:39-0.17:245:24Full Moon22Mon
23Tue5:452.85:183.911:261.37:235:25Full Moon23Tue
24Wed6:252.96:013.612:20-0.112:151.27:235:26Full Moon24Wed
25Thu7:052.96:433.412:590.01:031.17:225:28Waning Gibbous25Thu
26Fri7:442.97:273.11:360.11:511.07:215:29Waning Gibbous26Fri
27Sat8:232.98:132.72:130.32:400.97:215:30Waning Gibbous27Sat
28Sun9:023.09:032.52:490.53:340.97:205:31Waning Gibbous28Sun
29Mon9:433.09:592.23:240.74:310.87:195:32Third Quarter29Mon
30Tue10:253.111:012.14:000.95:310.77:185:33Third Quarter30Tue
31Wed11:103.24:391.16:310.67:185:34Third Quarter31Wed
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 14% 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 Waning Crescent (14% 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