37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

52°
H -°
L 48°
W
2mph
High tide
6:38 am

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

TIDE TIMES for Monday, October 26, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 11:55 am (1.2 ft)
Next high tide : in 3h 11m at 6:38 am (2.7 ft)
Sunset today : 6:13 pm
Sunrise tomorrow : 7:25 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1798

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:292.29:083.44:140.32:031.76:085:55Third Quarter1Mon
2Tue11:332.210:103.45:160.32:501.86:095:53Third Quarter2Tue
3Wed12:362.26:180.25:301.86:105:52Third Quarter3Wed
4Thu1:332.37:150.16:581.66:115:50Waning Crescent4Thu
5Fri12:413.42:222.58:070.08:031.36:125:49Waning Crescent5Fri
6Sat1:523.43:062.88:550.09:020.86:135:47Waning Crescent6Sat
7Sun2:563.43:463.19:400.09:580.46:145:46Waning Crescent7Sun
8Mon3:563.34:253.410:230.110:530.16:155:44New Moon8Mon
9Tue4:523.25:043.711:040.411:46-0.26:165:43New Moon9Tue
10Wed5:473.15:443.911:460.66:175:42New Moon10Wed
11Thu6:432.96:254.012:38-0.412:270.96:185:40Waxing Crescent11Thu
12Fri7:392.77:094.01:31-0.41:091.26:195:39Waxing Crescent12Fri
13Sat8:382.67:563.92:24-0.31:551.46:205:37Waxing Crescent13Sat
14Sun9:382.48:473.73:19-0.22:471.66:205:36First Quarter14Sun
15Mon10:392.39:453.44:180.03:521.76:215:34First Quarter15Mon
16Tue11:412.310:483.25:170.15:051.76:225:33First Quarter16Tue
17Wed12:402.36:150.26:141.66:235:32First Quarter17Wed
18Thu1:322.37:090.27:161.36:245:30Waxing Gibbous18Thu
19Fri12:562.82:152.47:560.28:111.06:255:29Waxing Gibbous19Fri
20Sat1:562.72:522.68:390.29:010.76:265:28Waxing Gibbous20Sat
21Sun2:502.63:272.79:190.39:470.56:275:26Waxing Gibbous21Sun
22Mon3:402.63:592.99:570.410:310.26:285:25Full Moon22Mon
23Tue4:262.64:313.110:330.611:140.16:295:24Full Moon23Tue
24Wed5:122.65:013.311:070.811:560.06:305:22Full Moon24Wed
25Thu5:572.65:293.511:391.16:315:21Full Moon25Thu
26Fri6:432.55:563.612:37-0.112:071.36:335:20Waning Gibbous26Fri
27Sat7:312.56:253.61:20-0.112:271.56:345:19Waning Gibbous27Sat
28Sun8:232.47:003.62:04-0.112:381.76:355:18Waning Gibbous28Sun
29Mon9:192.37:423.52:530.01:011.76:365:16Waning Gibbous29Mon
30Tue10:172.28:363.43:480.01:431.86:375:15Third Quarter30Tue
31Wed11:152.29:433.24:460.03:101.86:385:14Third Quarter31Wed
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 99% 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 (99% 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