37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

66°
H 89°
L 57°
W
3mph
Low tide
11:17 am

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

TIDE TIMES for Friday, October 9, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 3h 30m at 11:17 am (0.4 ft)
Next high tide : 5:21 pm (3.4 ft)
Sunset today : 6:36 pm
Sunrise tomorrow : 7:08 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 1828

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:042.75:383.612:020.011:52 AM1.27:175:35Full Moon1Fri
2Sat6:412.86:163.412:390.112:371.17:175:36Full Moon2Sat
3Sun7:182.96:563.21:140.11:211.07:165:37Waning Gibbous3Sun
4Mon7:552.97:392.91:480.22:080.97:155:38Waning Gibbous4Mon
5Tue8:313.08:282.72:190.42:590.87:145:39Waning Gibbous5Tue
6Wed9:093.19:252.42:460.63:560.87:135:40Waning Gibbous6Wed
7Thu9:503.310:322.33:100.85:000.67:125:42Third Quarter7Thu
8Fri10:383.411:442.23:391.16:040.57:115:43Third Quarter8Fri
9Sat11:333.64:341.37:050.37:105:44Third Quarter9Sat
10Sun12:572.212:343.86:061.48:030.17:095:45Waning Crescent10Sun
11Mon2:042.31:374.07:221.48:570.07:085:46Waning Crescent11Mon
12Tue3:022.52:374.18:271.39:48-0.17:075:47Waning Crescent12Tue
13Wed3:542.73:344.29:291.210:36-0.27:055:48Waning Crescent13Wed
14Thu4:413.04:284.210:281.011:23-0.27:045:49New Moon14Thu
15Fri5:263.25:204.011:240.87:035:50New Moon15Fri
16Sat6:113.46:123.812:07-0.112:190.67:025:51New Moon16Sat
17Sun6:553.57:043.412:510.01:130.57:015:52Waxing Crescent17Sun
18Mon7:393.57:573.11:330.22:080.46:595:54Waxing Crescent18Mon
19Tue8:243.58:512.72:160.43:030.46:585:55Waxing Crescent19Tue
20Wed9:113.59:482.42:590.74:010.56:575:56First Quarter20Wed
21Thu9:593.410:472.23:460.95:000.56:565:57First Quarter21Thu
22Fri10:503.311:492.14:391.16:000.56:545:58First Quarter22Fri
23Sat11:433.35:361.36:580.56:535:59First Quarter23Sat
24Sun12:522.112:393.36:351.37:520.46:526:00Waxing Gibbous24Sun
25Mon1:532.11:343.37:321.38:410.36:506:01Waxing Gibbous25Mon
26Tue2:452.22:263.38:251.39:270.36:496:02Waxing Gibbous26Tue
27Wed3:312.43:143.49:151.210:090.26:486:03Waxing Gibbous27Wed
28Thu4:112.63:593.410:031.010:500.26:466:04Full Moon28Thu
29Fri4:492.74:423.410:490.911:280.26:456:05Full Moon29Fri
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 1% 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 (1% 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