37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

80°
H 80°
L 60°
W
11mph
Low tide
3:31 pm

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

TIDE TIMES for Thursday, September 3, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 7m at 3:31 pm (1.7 ft)
Next high tide : 10:51 pm (4.0 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (56% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - May 1899

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:113.311:052.43:261.54:44-0.25:096:56Third Quarter1Mon
2Tue10:233.011:572.54:511.35:39-0.15:076:57Third Quarter2Tue
3Wed11:382.76:071.06:320.05:066:58Third Quarter3Wed
4Thu12:482.812:532.57:140.67:210.25:056:59Waning Crescent4Thu
5Fri1:363.02:032.48:140.28:090.45:046:59Waning Crescent5Fri
6Sat2:223.33:082.39:10-0.18:540.65:037:00Waning Crescent6Sat
7Sun3:053.64:062.410:02-0.39:400.95:027:01Waning Crescent7Sun
8Mon3:483.94:582.510:51-0.410:251.15:017:02New Moon8Mon
9Tue4:294.05:472.511:38-0.411:101.35:007:03New Moon9Tue
10Wed5:094.06:342.612:23-0.44:597:04New Moon10Wed
11Thu5:484.07:212.51:08-0.34:587:05Waxing Crescent11Thu
12Fri6:283.88:082.512:401.51:52-0.24:577:06Waxing Crescent12Fri
13Sat7:103.68:562.41:261.62:38-0.14:567:07Waxing Crescent13Sat
14Sun7:533.39:442.32:171.53:24-0.14:557:08Waxing Crescent14Sun
15Mon8:422.910:312.33:151.54:110.04:547:08First Quarter15Mon
16Tue9:382.611:172.34:201.34:580.14:547:09First Quarter16Tue
17Wed10:402.35:271.15:450.24:537:10First Quarter17Wed
18Thu12:012.411:48 AM2.16:290.96:290.44:527:11First Quarter18Thu
19Fri12:432.612:562.07:250.67:120.64:517:12Waxing Gibbous19Fri
20Sat1:242.82:022.08:170.37:530.84:507:13Waxing Gibbous20Sat
21Sun2:043.23:022.19:050.18:331.04:507:13Waxing Gibbous21Sun
22Mon2:433.53:572.39:52-0.19:121.34:497:14Waxing Gibbous22Mon
23Tue3:223.84:482.510:39-0.39:521.44:487:15Full Moon23Tue
24Wed4:014.15:372.611:25-0.410:341.64:487:16Full Moon24Wed
25Thu4:424.36:272.612:12-0.54:477:17Full Moon25Thu
26Fri5:254.37:162.612:59-0.54:477:17Full Moon26Fri
27Sat6:114.28:072.612:131.61:47-0.54:467:18Waning Gibbous27Sat
28Sun7:024.08:572.71:121.62:35-0.54:467:19Waning Gibbous28Sun
29Mon8:003.69:472.72:191.53:23-0.44:457:20Waning Gibbous29Mon
30Tue9:043.110:372.83:321.34:12-0.24:457:20Third Quarter30Tue
31Wed10:142.711:253.04:471.05:020.04:447:21Third 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 neap phase. Tonight's moon is 56% 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 (56% 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