37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

64°
H 75°
L 48°
NNE
2mph
High tide
5:23 pm

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

TIDE TIMES for Sunday, October 25, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 12:31 am (-0.4 ft)
Next high tide : in 5h 54m at 5:23 pm (3.8 ft)
Sunset today : 6:14 pm
Sunrise tomorrow : 7:24 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1799

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:053.66:463.412:130.812:450.25:426:42Waxing Crescent1Sun
2Mon7:003.37:253.61:080.51:210.55:436:40Waxing Crescent2Mon
3Tue7:593.08:083.82:050.31:580.85:446:39Waxing Crescent3Tue
4Wed9:022.78:553.93:050.22:361.15:456:37Waxing Crescent4Wed
5Thu10:092.49:474.04:080.23:191.45:456:36First Quarter5Thu
6Fri11:192.310:454.05:150.24:181.75:466:34First Quarter6Fri
7Sat12:312.36:200.25:351.85:476:33First Quarter7Sat
8Sun1:422.37:220.36:471.85:486:31Waxing Gibbous8Sun
9Mon12:533.92:422.48:180.27:511.75:496:30Waxing Gibbous9Mon
10Tue1:553.83:282.69:080.28:491.55:506:28Waxing Gibbous10Tue
11Wed2:513.84:062.79:540.29:431.35:516:26Waxing Gibbous11Wed
12Thu3:423.74:422.810:350.210:331.15:516:25Full Moon12Thu
13Fri4:283.55:152.911:140.211:200.85:526:23Full Moon13Fri
14Sat5:133.35:483.011:510.35:536:22Full Moon14Sat
15Sun5:563.16:213.112:060.712:260.55:546:20Full Moon15Sun
16Mon6:412.96:523.112:500.512:590.75:556:19Waning Gibbous16Mon
17Tue7:272.77:233.21:340.51:301.05:566:17Waning Gibbous17Tue
18Wed8:172.57:543.22:190.41:571.25:576:16Waning Gibbous18Wed
19Thu9:112.48:283.33:080.52:121.55:576:14Waning Gibbous19Thu
20Fri10:092.39:093.34:030.52:091.75:586:12Third Quarter20Fri
21Sat11:122.210:013.35:030.52:321.85:596:11Third Quarter21Sat
22Sun12:162.26:040.53:221.96:006:09Third Quarter22Sun
23Mon1:182.27:020.46:271.86:016:08Third Quarter23Mon
24Tue12:123.32:112.37:540.27:321.66:026:06Waning Crescent24Tue
25Wed1:193.42:552.58:420.18:301.36:036:05Waning Crescent25Wed
26Thu2:213.43:352.79:260.09:241.06:046:03Waning Crescent26Thu
27Fri3:193.54:123.010:070.010:170.66:056:01New Moon27Fri
28Sat4:133.44:483.310:470.111:100.26:056:00New Moon28Sat
29Sun5:073.35:243.611:260.36:065:58New Moon29Sun
30Mon6:023.26:023.812:02-0.112:040.66:075:57New Moon30Mon
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 100% 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 Full Moon (100% 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