37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

80°
H -°
L 50°
W
13mph
High tide
6:40 pm

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

TIDE TIMES for Sunday, September 27, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 1:34 am (0.0 ft)
Next high tide : in 1h 38m at 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 1848

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:072.67:443.22:070.31:581.26:085:55Waxing Crescent1Sun
2Mon8:582.58:223.12:540.32:351.46:095:54Waxing Crescent2Mon
3Tue9:512.39:063.03:450.43:201.56:105:52First Quarter3Tue
4Wed10:472.39:593.04:410.44:231.56:115:51First Quarter4Wed
5Thu11:442.211:012.95:370.45:331.56:125:49First Quarter5Thu
6Fri12:392.36:320.36:371.46:135:48First Quarter6Fri
7Sat12:082.91:312.57:230.37:341.16:145:46Waxing Gibbous7Sat
8Sun1:122.92:172.78:100.28:260.96:155:45Waxing Gibbous8Sun
9Mon2:133.03:003.08:540.29:170.66:165:43Waxing Gibbous9Mon
10Tue3:103.13:413.39:380.310:070.36:175:42Waxing Gibbous10Tue
11Wed4:043.24:203.610:200.410:580.06:175:40Full Moon11Wed
12Thu4:573.25:013.811:030.611:48-0.26:185:39Full Moon12Thu
13Fri5:493.25:424.011:460.76:195:37Full Moon13Fri
14Sat6:433.16:264.112:39-0.312:300.96:205:36Waning Gibbous14Sat
15Sun7:392.97:144.01:32-0.41:171.16:215:35Waning Gibbous15Sun
16Mon8:372.88:073.92:26-0.32:101.36:225:33Waning Gibbous16Mon
17Tue9:372.69:053.63:23-0.23:111.46:235:32Third Quarter17Tue
18Wed10:372.510:083.44:22-0.14:201.46:245:30Third Quarter18Wed
19Thu11:372.511:143.15:220.05:321.36:255:29Third Quarter19Thu
20Fri12:342.66:190.16:391.16:265:28Third Quarter20Fri
21Sat12:212.91:272.77:120.27:390.86:275:26Waning Crescent21Sat
22Sun1:252.72:142.88:010.28:330.66:285:25Waning Crescent22Sun
23Mon2:242.72:563.08:470.39:230.46:295:24Waning Crescent23Mon
24Tue3:182.63:353.29:290.510:090.26:305:23Waning Crescent24Tue
25Wed4:062.74:113.310:110.610:530.16:315:21New Moon25Wed
26Thu4:522.74:463.410:510.811:360.06:325:20New Moon26Thu
27Fri5:362.75:203.511:300.96:335:19New Moon27Fri
28Sat6:192.75:533.512:180.012:081.16:345:18New Moon28Sat
29Sun7:042.66:263.41:000.012:451.36:355:17Waxing Crescent29Sun
30Mon7:512.56:583.31:420.01:221.46:375:15Waxing Crescent30Mon
31Tue8:402.47:333.22:260.01:591.56:385:14Waxing Crescent31Tue
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 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