37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

80°
H -°
L 53°
W
9mph
High tide
8:26 pm

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

TIDE TIMES for Monday, September 14, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 3:27 am (0.3 ft)
Next high tide : in 1h 04m at 8:26 pm (3.6 ft)
Sunset today : 7:15 pm
Sunrise tomorrow : 6:46 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - May 1870

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:313.46:372.512:33-0.15:167:03New Moon1Sun
2Mon6:013.47:242.512:171.21:15-0.15:147:04New Moon2Mon
3Tue6:303.48:122.412:491.31:57-0.15:137:05Waxing Crescent3Tue
4Wed7:013.49:032.31:161.52:42-0.15:127:06Waxing Crescent4Wed
5Thu7:373.39:552.31:341.63:30-0.15:117:06Waxing Crescent5Thu
6Fri8:233.210:482.22:021.64:22-0.15:107:07First Quarter6Fri
7Sat9:193.011:412.33:271.65:17-0.15:097:08First Quarter7Sat
8Sun10:282.95:181.56:10-0.15:087:09First Quarter8Sun
9Mon12:312.411:48 AM2.76:311.27:010.05:077:10First Quarter9Mon
10Tue1:192.61:062.77:340.97:500.15:067:11Waxing Gibbous10Tue
11Wed2:042.92:172.78:320.58:360.35:057:12Waxing Gibbous11Wed
12Thu2:483.33:212.79:270.19:210.55:047:13Waxing Gibbous12Thu
13Fri3:303.74:212.810:20-0.310:070.75:037:14Full Moon13Fri
14Sat4:124.05:182.811:12-0.510:531.05:027:15Full Moon14Sat
15Sun4:554.26:132.812:04-0.65:017:15Full Moon15Sun
16Mon5:404.37:082.812:55-0.75:007:16Full Moon16Mon
17Tue6:264.38:032.712:291.31:45-0.65:007:17Waning Gibbous17Tue
18Wed7:144.18:582.61:221.52:37-0.44:597:18Waning Gibbous18Wed
19Thu8:063.89:532.62:191.53:29-0.34:587:19Waning Gibbous19Thu
20Fri9:023.410:472.53:221.54:22-0.14:577:20Third Quarter20Fri
21Sat10:023.011:392.54:311.55:160.04:577:20Third Quarter21Sat
22Sun11:052.75:391.36:070.14:567:21Third Quarter22Sun
23Mon12:282.612:102.46:421.06:550.24:557:22Third Quarter23Mon
24Tue1:142.71:142.27:400.87:400.44:557:23Waning Crescent24Tue
25Wed1:562.82:162.28:310.58:230.64:547:24Waning Crescent25Wed
26Thu2:353.03:122.29:190.39:040.84:547:24Waning Crescent26Thu
27Fri3:123.24:032.310:040.19:441.04:537:25Waning Crescent27Fri
28Sat3:473.54:512.410:480.010:241.24:537:26New Moon28Sat
29Sun4:223.65:372.511:31-0.111:021.44:527:27New Moon29Sun
30Mon4:553.86:222.612:13-0.24:527:27New Moon30Mon
31Tue5:273.87:092.612:55-0.24:517:28New 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 14% 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 Waxing Crescent (14% 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