37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

61°
H -°
L 56°
WSW
10mph
High tide
7:46 am

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

TIDE TIMES for Sunday, September 13, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 1:51 pm (0.8 ft)
Next high tide : in 4h 58m at 7:46 am (3.0 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 6:46 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Mar 1874

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:462.54:173.610:191.311:150.16:446:06Full Moon1Sun
2Mon5:192.65:003.411:071.011:520.16:426:07Full Moon2Mon
3Tue5:522.75:423.211:530.86:416:08Full Moon3Tue
4Wed6:252.86:243.012:270.212:370.76:396:09Full Moon4Wed
5Thu6:562.97:072.81:000.31:200.56:386:10Waning Gibbous5Thu
6Fri7:272.97:542.51:300.52:040.56:366:11Waning Gibbous6Fri
7Sat7:573.08:442.41:570.82:510.46:356:12Waning Gibbous7Sat
8Sun8:273.19:392.22:141.13:430.46:336:13Waning Gibbous8Sun
9Mon9:013.210:412.12:131.34:420.56:326:14Third Quarter9Mon
10Tue9:443.311:492.02:271.55:450.46:316:15Third Quarter10Tue
11Wed10:393.43:001.66:470.36:296:16Third Quarter11Wed
12Thu12:582.011:44 AM3.53:571.77:440.26:286:17Third Quarter12Thu
13Fri2:012.112:553.66:471.78:360.06:266:18Waning Crescent13Fri
14Sat2:532.22:033.68:021.59:25-0.16:246:19Waning Crescent14Sat
15Sun3:372.43:043.79:041.210:10-0.26:236:19Waning Crescent15Sun
16Mon4:172.74:013.710:020.910:52-0.26:216:20New Moon16Mon
17Tue4:553.04:563.510:590.511:33-0.16:206:21New Moon17Tue
18Wed5:333.35:513.311:540.16:186:22New Moon18Wed
19Thu6:113.56:473.112:120.212:48-0.16:176:23Waxing Crescent19Thu
20Fri6:523.77:442.812:510.51:43-0.36:156:24Waxing Crescent20Fri
21Sat7:353.88:442.51:300.82:39-0.36:146:25Waxing Crescent21Sat
22Sun8:213.99:462.32:101.13:37-0.16:126:26Waxing Crescent22Sun
23Mon9:123.810:502.22:551.44:400.06:116:27First Quarter23Mon
24Tue10:093.611:582.13:531.65:430.16:096:28First Quarter24Tue
25Wed11:113.55:081.76:450.26:086:29First Quarter25Wed
26Thu1:072.112:173.36:221.67:420.26:066:30First Quarter26Thu
27Fri2:082.21:213.27:271.58:320.26:056:31Waxing Gibbous27Fri
28Sat2:542.32:203.18:251.29:170.26:036:32Waxing Gibbous28Sat
29Sun3:312.43:133.09:181.09:570.26:026:32Waxing Gibbous29Sun
30Mon4:052.54:012.910:070.710:350.26:006:33Waxing Gibbous30Mon
31Tue4:372.74:462.810:520.511:110.35:586:34Full 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 8% 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 (8% 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