37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

87°
H 87°
L 58°
WNW
12mph
High tide
5:21 pm

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

TIDE TIMES for Friday, October 9, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 11:59 pm (0.0 ft)
Next high tide : in 2h 15m at 5:21 pm (3.4 ft)
Sunset today : 6:36 pm
Sunrise tomorrow : 7:08 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 1827

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:163.29:372.32:241.23:330.25:586:35Waxing Crescent1Sun
2Mon9:003.110:302.13:071.34:260.35:566:36First Quarter2Mon
3Tue9:502.911:252.14:031.45:220.35:556:36First Quarter3Tue
4Wed10:482.85:111.46:170.35:536:37First Quarter4Wed
5Thu12:202.111:51 AM2.76:171.27:080.25:526:38First Quarter5Thu
6Fri1:132.212:552.77:171.17:550.25:506:39Waxing Gibbous6Fri
7Sat2:012.41:572.78:110.88:400.25:496:40Waxing Gibbous7Sat
8Sun2:442.62:542.89:020.69:220.35:476:41Waxing Gibbous8Sun
9Mon3:242.93:472.89:510.310:030.45:466:42Waxing Gibbous9Mon
10Tue4:023.24:382.910:400.010:430.65:446:43Full Moon10Tue
11Wed4:403.55:292.911:28-0.211:230.85:436:44Full Moon11Wed
12Thu5:183.86:202.912:16-0.35:416:45Full Moon12Thu
13Fri5:583.97:122.812:030.91:06-0.45:406:46Waning Gibbous13Fri
14Sat6:424.08:072.712:461.11:57-0.45:396:47Waning Gibbous14Sat
15Sun7:313.99:042.61:321.22:51-0.45:376:47Waning Gibbous15Sun
16Mon8:263.710:022.52:271.33:48-0.35:366:48Waning Gibbous16Mon
17Tue9:273.511:012.43:331.34:47-0.25:346:49Third Quarter17Tue
18Wed10:333.211:592.54:481.25:45-0.15:336:50Third Quarter18Wed
19Thu11:422.96:011.16:410.05:326:51Third Quarter19Thu
20Fri12:552.612:512.77:070.87:330.15:306:52Waning Crescent20Fri
21Sat1:462.81:572.68:070.58:210.35:296:53Waning Crescent21Sat
22Sun2:323.02:572.59:020.39:070.45:286:54Waning Crescent22Sun
23Mon3:153.23:512.59:520.19:500.65:266:55Waning Crescent23Mon
24Tue3:543.44:402.610:39-0.110:330.85:256:56New Moon24Tue
25Wed4:323.55:262.611:24-0.111:140.95:246:57New Moon25Wed
26Thu5:083.66:102.612:07-0.25:226:58New Moon26Thu
27Fri5:443.66:552.612:50-0.25:216:58New Moon27Fri
28Sat6:193.57:402.512:341.21:32-0.15:206:59Waxing Crescent28Sat
29Sun6:553.48:272.41:141.32:16-0.15:197:00Waxing Crescent29Sun
30Mon7:323.39:162.31:541.43:010.05:177:01Waxing Crescent30Mon
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 1% 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 New Moon (1% 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