37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

75°
H 76°
L 46°
WSW
16mph
High tide
5:56 pm

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

TIDE TIMES for Saturday, October 10, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 12:46 am (-0.1 ft)
Next high tide : in 5h 24m at 5:56 pm (3.6 ft)
Sunset today : 6:35 pm
Sunrise tomorrow : 7:09 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - May 1825

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:473.94:542.710:48-0.510:271.05:167:03Full Moon1Sun
2Mon4:314.25:472.711:39-0.611:141.25:147:04Full Moon2Mon
3Tue5:154.36:402.712:29-0.65:137:04Full Moon3Tue
4Wed6:014.37:322.612:031.31:18-0.55:127:05Waning Gibbous4Wed
5Thu6:484.18:242.612:531.42:08-0.45:117:06Waning Gibbous5Thu
6Fri7:373.89:162.51:461.52:57-0.35:107:07Waning Gibbous6Fri
7Sat8:293.410:082.42:441.43:48-0.15:097:08Waning Gibbous7Sat
8Sun9:253.010:592.43:481.44:390.05:087:09Third Quarter8Sun
9Mon10:252.611:472.44:551.25:300.15:077:10Third Quarter9Mon
10Tue11:282.36:011.06:180.25:067:11Third Quarter10Tue
11Wed12:332.512:332.17:010.77:040.45:057:12Third Quarter11Wed
12Thu1:172.61:372.07:550.57:480.55:047:13Waning Crescent12Thu
13Fri1:582.82:372.18:450.28:290.75:037:13Waning Crescent13Fri
14Sat2:373.13:312.29:310.19:101.05:027:14Waning Crescent14Sat
15Sun3:143.44:202.310:16-0.19:501.25:017:15Waning Crescent15Sun
16Mon3:513.65:072.411:00-0.210:291.45:017:16New Moon16Mon
17Tue4:263.85:522.511:43-0.211:071.55:007:17New Moon17Tue
18Wed5:003.96:382.512:26-0.34:597:18New Moon18Wed
19Thu5:343.97:252.51:09-0.34:587:19New Moon19Thu
20Fri6:113.88:122.512:201.61:52-0.34:577:19Waxing Crescent20Fri
21Sat6:523.79:002.51:031.62:36-0.34:577:20Waxing Crescent21Sat
22Sun7:413.49:482.51:591.63:22-0.34:567:21Waxing Crescent22Sun
23Mon8:393.110:352.63:131.44:09-0.24:557:22First Quarter23Mon
24Tue9:482.711:222.84:321.24:580.04:557:23First Quarter24Tue
25Wed11:052.55:460.95:470.24:547:24First Quarter25Wed
26Thu12:093.012:232.36:520.56:360.44:547:24First Quarter26Thu
27Fri12:563.41:382.27:520.27:250.74:537:25Waxing Gibbous27Fri
28Sat1:443.72:472.38:49-0.18:141.04:537:26Waxing Gibbous28Sat
29Sun2:324.03:492.49:43-0.39:041.24:527:27Waxing Gibbous29Sun
30Mon3:194.34:452.510:34-0.59:551.44:527:27Full Moon30Mon
31Tue4:064.45:362.611:24-0.510:481.54:517:28Full Moon31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

Common Questions About Blackslough Landing, San Joaquin River, CA Tides

Collapse All
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 0% 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 (0% 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