37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

77°
H 84°
L 58°
WNW
5mph
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 1h 31m 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 - Jan 1913

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:161.912:273.65:590.87:410.17:214:56Waning Crescent1Wed
2Thu1:331.81:153.86:491.18:370.07:224:57Waning Crescent2Thu
3Fri2:461.92:044.07:401.49:28-0.17:224:58Waning Crescent3Fri
4Sat3:482.12:514.18:311.610:16-0.17:224:59Waning Crescent4Sat
5Sun4:382.33:364.29:221.811:01-0.17:225:00New Moon5Sun
6Mon5:202.44:194.210:121.811:45-0.17:225:01New Moon6Mon
7Tue6:002.55:004.111:001.87:225:02New Moon7Tue
8Wed6:392.55:393.912:26-0.111:48 AM1.77:225:02New Moon8Wed
9Thu7:192.56:183.71:05-0.112:351.67:225:03Waxing Crescent9Thu
10Fri7:582.56:583.31:43-0.11:241.57:215:04Waxing Crescent10Fri
11Sat8:362.57:402.92:19-0.12:161.37:215:05Waxing Crescent11Sat
12Sun9:132.58:282.62:540.13:121.27:215:06Waxing Crescent12Sun
13Mon9:502.69:252.23:260.34:141.07:215:07First Quarter13Mon
14Tue10:262.810:332.03:540.65:180.87:205:08First Quarter14Tue
15Wed11:033.011:491.94:130.96:200.67:205:09First Quarter15Wed
16Thu11:433.34:231.27:180.47:205:10First Quarter16Thu
17Fri1:071.912:293.64:541.58:130.27:195:11Waxing Gibbous17Fri
18Sat2:192.01:204.05:551.79:050.07:195:13Waxing Gibbous18Sat
19Sun3:222.22:144.37:211.89:56-0.27:195:14Waxing Gibbous19Sun
20Mon4:152.43:084.58:351.910:45-0.37:185:15Waxing Gibbous20Mon
21Tue5:022.54:014.69:411.811:33-0.57:185:16Full Moon21Tue
22Wed5:462.64:534.510:451.67:175:17Full Moon22Wed
23Thu6:292.85:454.312:18-0.511:48 AM1.47:165:18Full Moon23Thu
24Fri7:122.96:393.91:01-0.512:491.17:165:19Waning Gibbous24Fri
25Sat7:553.07:353.41:42-0.41:520.97:155:20Waning Gibbous25Sat
26Sun8:393.28:362.92:22-0.12:550.77:155:21Waning Gibbous26Sun
27Mon9:233.49:402.43:020.24:010.57:145:22Third Quarter27Mon
28Tue10:093.510:492.13:430.65:090.47:135:24Third Quarter28Tue
29Wed10:583.64:270.96:150.37:125:25Third Quarter29Wed
30Thu12:011.911:49 AM3.75:181.37:170.37:125:26Third Quarter30Thu
31Fri1:181.912:433.86:171.58:150.27:115:27Waning Crescent31Fri
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