37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

71°
H 75°
L 50°
WNW
7mph
Low tide
12:34 pm

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

TIDE TIMES for Sunday, October 11, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 31m at 12:34 pm (0.9 ft)
Next high tide : 6:30 pm (3.7 ft)
Sunset today : 6:33 pm
Sunrise tomorrow : 7:10 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jun 1823

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:102.311:412.65:131.25:170.24:517:28Third Quarter1Sun
2Mon11:252.16:170.95:570.54:517:29Third Quarter2Mon
3Tue12:212.812:422.07:140.66:370.74:507:30Third Quarter3Tue
4Wed1:003.21:552.18:080.37:171.04:507:30Waning Crescent4Wed
5Thu1:423.63:012.28:590.07:581.34:507:31Waning Crescent5Thu
6Fri2:254.04:012.49:50-0.28:441.54:497:31Waning Crescent6Fri
7Sat3:114.44:552.510:41-0.49:341.74:497:32New Moon7Sat
8Sun3:584.65:472.611:31-0.510:301.84:497:33New Moon8Sun
9Mon4:464.76:382.712:21-0.64:497:33New Moon9Mon
10Tue5:374.67:292.71:10-0.64:497:34Waxing Crescent10Tue
11Wed6:304.48:192.812:331.71:58-0.54:497:34Waxing Crescent11Wed
12Thu7:263.99:092.81:391.52:46-0.44:497:35Waxing Crescent12Thu
13Fri8:273.49:572.92:481.33:33-0.24:487:35Waxing Crescent13Fri
14Sat9:312.910:453.04:001.14:200.04:487:35First Quarter14Sat
15Sun10:392.411:323.25:110.85:070.34:487:36First Quarter15Sun
16Mon11:492.16:180.65:540.64:497:36First Quarter16Mon
17Tue12:183.41:001.97:190.36:420.94:497:37Waxing Gibbous17Tue
18Wed1:043.62:111.98:140.27:291.24:497:37Waxing Gibbous18Wed
19Thu1:493.83:142.19:040.18:161.44:497:37Waxing Gibbous19Thu
20Fri2:333.94:072.29:510.09:021.64:497:37Waxing Gibbous20Fri
21Sat3:164.14:522.410:360.09:491.84:497:38Full Moon21Sat
22Sun3:564.15:342.511:200.010:351.84:497:38Full Moon22Sun
23Mon4:364.16:152.512:020.04:507:38Full Moon23Mon
24Tue5:144.06:562.612:420.04:507:38Full Moon24Tue
25Wed5:513.97:372.612:061.81:22-0.14:507:38Waning Gibbous25Wed
26Thu6:283.68:182.512:531.71:59-0.14:517:39Waning Gibbous26Thu
27Fri7:073.38:572.61:421.62:350.04:517:39Waning Gibbous27Fri
28Sat7:502.99:362.72:361.43:100.14:517:39Waning Gibbous28Sat
29Sun8:412.610:122.83:371.33:410.34:527:39Third Quarter29Sun
30Mon9:442.310:493.04:411.14:100.64:527:39Third Quarter30Mon
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