37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

69°
H -°
L 44°
WNW
7mph
High tide
6:37 pm

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

TIDE TIMES for Tuesday, October 27, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 2:09 am (-0.5 ft)
Next high tide : in 57m at 6:37 pm (4.3 ft)
Sunset today : 6:12 pm
Sunrise tomorrow : 7:26 am
Moon phase : Full Moon (96% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Jan 1797

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:152.56:583.41:57-0.11:251.67:295:05Waxing Crescent1Sun
2Mon8:572.47:383.12:36-0.12:161.57:295:05Waxing Crescent2Mon
3Tue9:392.58:252.83:140.03:181.47:295:06Waxing Crescent3Tue
4Wed10:192.69:252.53:510.14:271.27:295:07First Quarter4Wed
5Thu10:582.710:392.24:280.35:351.07:295:08First Quarter5Thu
6Fri11:383.05:060.66:380.77:295:09First Quarter6Fri
7Sat12:012.112:213.35:470.97:360.47:295:10First Quarter7Sat
8Sun1:202.11:083.76:341.18:320.17:295:11Waxing Gibbous8Sun
9Mon2:322.21:584.17:271.49:25-0.27:295:12Waxing Gibbous9Mon
10Tue3:352.42:494.48:221.610:17-0.47:295:13Waxing Gibbous10Tue
11Wed4:312.63:404.79:211.711:08-0.57:285:14Full Moon11Wed
12Thu5:222.74:324.810:201.711:58-0.67:285:15Full Moon12Thu
13Fri6:112.85:234.711:211.67:285:16Full Moon13Fri
14Sat6:592.96:164.412:46-0.512:211.57:275:17Waning Gibbous14Sat
15Sun7:472.97:094.01:32-0.51:221.37:275:18Waning Gibbous15Sun
16Mon8:343.08:063.52:17-0.32:241.17:275:19Waning Gibbous16Mon
17Tue9:213.09:052.93:02-0.13:291.07:265:20Waning Gibbous17Tue
18Wed10:083.110:072.53:460.14:350.87:265:21Third Quarter18Wed
19Thu10:553.211:132.14:320.45:410.67:255:22Third Quarter19Thu
20Fri11:413.35:200.76:440.57:255:23Third Quarter20Fri
21Sat12:232.012:293.46:091.07:410.47:245:24Third Quarter21Sat
22Sun1:341.91:173.57:001.38:330.37:245:25Waning Crescent22Sun
23Mon2:402.02:043.77:501.59:220.27:235:27Waning Crescent23Mon
24Tue3:352.22:503.88:401.610:070.17:225:28Waning Crescent24Tue
25Wed4:212.33:343.99:281.710:510.17:225:29Waning Crescent25Wed
26Thu5:022.54:154.010:141.711:330.07:215:30New Moon26Thu
27Fri5:412.54:553.911:001.67:205:31New Moon27Fri
28Sat6:192.65:323.812:120.011:45 AM1.57:205:32New Moon28Sat
29Sun6:582.66:103.612:50-0.112:291.47:195:33New Moon29Sun
30Mon7:362.66:483.31:27-0.11:141.37:185:34Waxing Crescent30Mon
31Tue8:132.77:303.02:010.02:011.27:175:35Waxing 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 96% 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 (96% 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