37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

55°
H -°
L 46°
SW
5mph
Low tide
11:44 pm

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

TIDE TIMES for Sunday, October 25, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : in 1h 49m at 11:44 pm (-0.2 ft)
Next high tide : 5:47 am (2.6 ft)
Sunset today : 6:16 pm
Sunrise tomorrow : 7:23 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jun 1800

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:142.611:51 AM2.36:400.96:310.34:517:29First Quarter1Sun
2Mon12:542.91:122.27:390.57:130.64:507:29Waxing Gibbous2Mon
3Tue1:343.32:262.28:350.17:540.94:507:30Waxing Gibbous3Tue
4Wed2:163.83:332.39:28-0.28:371.24:507:31Waxing Gibbous4Wed
5Thu3:004.24:332.510:21-0.59:231.54:497:31Full Moon5Thu
6Fri3:454.65:292.611:13-0.610:131.74:497:32Full Moon6Fri
7Sat4:324.86:232.712:05-0.64:497:32Full Moon7Sat
8Sun5:214.87:172.712:56-0.64:497:33Full Moon8Sun
9Mon6:114.68:102.712:071.81:46-0.54:497:33Waning Gibbous9Mon
10Tue7:054.39:022.71:091.82:36-0.44:497:34Waning Gibbous10Tue
11Wed8:013.89:532.72:151.73:25-0.24:487:34Waning Gibbous11Wed
12Thu9:013.310:422.73:261.54:14-0.14:487:35Third Quarter12Thu
13Fri10:042.811:282.84:381.35:010.14:487:35Third Quarter13Fri
14Sat11:102.35:481.05:480.34:487:36Third Quarter14Sat
15Sun12:112.912:192.06:510.76:320.64:487:36Third Quarter15Sun
16Mon12:533.11:291.97:470.47:150.94:497:36Waning Crescent16Mon
17Tue1:343.32:352.08:380.27:571.14:497:37Waning Crescent17Tue
18Wed2:143.53:332.19:250.18:391.44:497:37Waning Crescent18Wed
19Thu2:533.84:242.310:100.19:211.74:497:37Waning Crescent19Thu
20Fri3:313.95:092.410:530.010:031.84:497:38New Moon20Fri
21Sat4:094.15:532.511:360.010:441.94:497:38New Moon21Sat
22Sun4:454.16:362.612:190.04:497:38New Moon22Sun
23Mon5:214.17:202.61:00-0.14:507:38New Moon23Mon
24Tue5:564.08:042.512:062.01:41-0.14:507:38Waxing Crescent24Tue
25Wed6:333.78:472.512:501.92:21-0.14:507:38Waxing Crescent25Wed
26Thu7:143.49:282.51:411.82:59-0.14:517:39Waxing Crescent26Thu
27Fri8:033.110:082.62:461.63:370.04:517:39Waxing Crescent27Fri
28Sat9:032.710:462.83:591.44:140.24:517:39First Quarter28Sat
29Sun10:172.411:253.15:111.14:510.54:527:39First Quarter29Sun
30Mon11:382.26:180.75:300.84:527:39First 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 98% 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 (98% 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