37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

54°
H 79°
L 49°
W
5mph
Low tide
12:44 pm

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

TIDE TIMES for Sunday, September 27, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 5h 47m at 12:44 pm (0.8 ft)
Next high tide : 6:40 pm (3.6 ft)
Sunset today : 6:54 pm
Sunrise tomorrow : 6:58 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1849

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:333.24:563.310:590.411:260.36:085:56Full Moon1Mon
2Tue5:203.25:323.511:370.56:095:54Full Moon2Tue
3Wed6:083.16:083.712:120.212:150.76:105:52Full Moon3Wed
4Thu6:593.06:473.71:000.012:520.96:115:51Waning Gibbous4Thu
5Fri7:542.87:303.81:500.01:321.16:125:49Waning Gibbous5Fri
6Sat8:532.78:203.72:44-0.12:171.36:135:48Waning Gibbous6Sat
7Sun9:542.59:183.63:430.03:161.46:145:46Third Quarter7Sun
8Mon10:572.510:233.54:450.04:311.56:145:45Third Quarter8Mon
9Tue11:592.511:333.35:470.05:471.46:155:43Third Quarter9Tue
10Wed12:592.66:460.16:551.26:165:42Waning Crescent10Wed
11Thu12:423.21:532.77:400.17:570.96:175:41Waning Crescent11Thu
12Fri1:473.12:412.98:300.18:530.76:185:39Waning Crescent12Fri
13Sat2:483.13:253.19:170.29:460.46:195:38Waning Crescent13Sat
14Sun3:423.04:053.310:010.310:350.26:205:36New Moon14Sun
15Mon4:333.04:443.510:440.511:220.16:215:35New Moon15Mon
16Tue5:202.95:213.511:250.76:225:33New Moon16Tue
17Wed6:072.95:573.612:070.012:060.96:235:32New Moon17Wed
18Thu6:532.86:333.512:520.012:461.16:245:31Waxing Crescent18Thu
19Fri7:412.67:103.41:360.01:261.26:255:29Waxing Crescent19Fri
20Sat8:312.57:483.32:210.12:081.46:265:28Waxing Crescent20Sat
21Sun9:222.48:313.13:090.12:561.56:275:27Waxing Crescent21Sun
22Mon10:162.39:212.94:010.23:541.56:285:25First Quarter22Mon
23Tue11:102.210:202.74:550.25:011.56:295:24First Quarter23Tue
24Wed12:032.35:490.26:051.36:305:23First Quarter24Wed
25Thu12:532.46:410.27:031.16:315:22First Quarter25Thu
26Fri12:302.61:402.57:280.27:560.96:325:20Waxing Gibbous26Fri
27Sat1:332.62:222.88:130.38:460.66:335:19Waxing Gibbous27Sat
28Sun2:312.63:013.08:550.39:340.36:345:18Waxing Gibbous28Sun
29Mon3:252.73:393.39:360.510:210.16:355:17Waxing Gibbous29Mon
30Tue4:172.84:163.610:160.611:08-0.26:365:16Full Moon30Tue
31Wed5:082.94:543.910:560.811:55-0.36:375:15Full Moon31Wed
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 99% 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 (99% 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