37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

79°
H 84°
L 59°
WNW
6mph
Low tide
12:58 pm

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

TIDE TIMES for Friday, August 28, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 23m at 12:58 pm (0.2 ft)
Next high tide : 6:57 pm (3.0 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 6:32 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Dec 1912

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:382.611:132.55:12-0.25:501.07:034:46Third Quarter1Sun
2Mon12:252.96:020.06:590.67:034:46Third Quarter2Mon
3Tue12:302.21:103.26:490.38:000.27:044:46Waning Crescent3Tue
4Wed1:452.01:543.57:350.68:55-0.17:054:46Waning Crescent4Wed
5Thu2:542.02:373.88:190.99:46-0.37:064:46Waning Crescent5Thu
6Fri3:552.23:184.09:041.210:34-0.47:074:46New Moon6Fri
7Sat4:482.33:594.29:491.411:19-0.47:084:46New Moon7Sat
8Sun5:362.44:384.210:341.67:094:46New Moon8Sun
9Mon6:222.55:174.212:04-0.311:19 AM1.87:104:46New Moon9Mon
10Tue7:072.55:564.012:47-0.312:041.87:104:46Waxing Crescent10Tue
11Wed7:522.56:353.81:31-0.212:501.87:114:46Waxing Crescent11Wed
12Thu8:382.47:153.52:14-0.21:391.87:124:46Waxing Crescent12Thu
13Fri9:232.37:593.12:57-0.12:361.67:134:46Waxing Crescent13Fri
14Sat10:072.38:502.73:39-0.13:421.57:134:47First Quarter14Sat
15Sun10:492.39:512.34:220.04:521.37:144:47First Quarter15Sun
16Mon11:292.511:012.05:040.25:581.07:154:47First Quarter16Mon
17Tue12:082.75:440.46:570.77:154:48First Quarter17Tue
18Wed12:161.912:473.06:230.77:510.47:164:48Waxing Gibbous18Wed
19Thu1:301.91:263.37:011.08:410.27:174:48Waxing Gibbous19Thu
20Fri2:372.02:053.77:381.39:29-0.17:174:49Waxing Gibbous20Fri
21Sat3:382.22:464.08:161.510:17-0.27:184:49Waxing Gibbous21Sat
22Sun4:322.43:294.48:581.711:05-0.47:184:50Full Moon22Sun
23Mon5:222.54:144.69:451.811:53-0.57:194:50Full Moon23Mon
24Tue6:112.65:004.610:391.87:194:51Full Moon24Tue
25Wed6:592.65:494.512:41-0.611:39 AM1.87:204:51Waning Gibbous25Wed
26Thu7:482.66:414.21:28-0.612:441.67:204:52Waning Gibbous26Thu
27Fri8:362.67:383.72:14-0.51:531.57:204:53Waning Gibbous27Fri
28Sat9:232.78:413.23:00-0.43:061.27:214:53Waning Gibbous28Sat
29Sun10:102.99:502.63:45-0.24:211.07:214:54Third Quarter29Sun
30Mon10:573.111:022.24:310.15:340.67:214:55Third Quarter30Mon
31Tue11:443.35:180.46:400.37:214:56Third Quarter31Tue
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