37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

66°
H 67°
L 46°
SSE
5mph
Low tide
6:08 pm

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

TIDE TIMES for Monday, November 2, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 4h 19m at 6:08 pm (1.2 ft)
Next high tide : 11:42 pm (2.8 ft)
Sunset today : 5:05 pm
Sunrise tomorrow : 6:32 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Feb 1789

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:313.19:592.23:000.84:320.87:165:37First Quarter1Sun
2Mon10:113.311:072.13:111.05:340.77:155:38First Quarter2Mon
3Tue10:583.43:331.26:350.57:145:39First Quarter3Tue
4Wed12:192.011:52 AM3.64:211.47:330.37:135:40First Quarter4Wed
5Thu1:282.112:523.86:111.58:270.17:135:41Waxing Gibbous5Thu
6Fri2:312.31:534.07:341.59:180.07:115:42Waxing Gibbous6Fri
7Sat3:252.52:524.18:401.410:06-0.27:105:43Waxing Gibbous7Sat
8Sun4:132.73:474.29:421.210:53-0.37:095:44Full Moon8Sun
9Mon4:573.04:414.110:411.011:37-0.27:085:45Full Moon9Mon
10Tue5:403.25:344.011:390.77:075:47Full Moon10Tue
11Wed6:243.46:273.712:20-0.112:350.57:065:48Waning Gibbous11Wed
12Thu7:083.67:223.31:030.01:320.47:055:49Waning Gibbous12Thu
13Fri7:533.78:183.01:450.32:290.37:045:50Waning Gibbous13Fri
14Sat8:403.79:172.62:270.53:280.37:035:51Waning Gibbous14Sat
15Sun9:303.710:182.33:120.84:300.37:015:52Third Quarter15Sun
16Mon10:223.711:232.24:031.15:330.47:005:53Third Quarter16Mon
17Tue11:173.65:011.36:350.46:595:54Third Quarter17Tue
18Wed12:292.112:143.56:041.47:320.46:585:55Third Quarter18Wed
19Thu1:352.11:123.57:051.48:250.36:565:56Waning Crescent19Thu
20Fri2:342.22:073.58:021.49:120.36:555:57Waning Crescent20Fri
21Sat3:212.32:573.58:551.39:560.26:545:58Waning Crescent21Sat
22Sun4:022.53:443.49:451.110:370.26:535:59Waning Crescent22Sun
23Mon4:392.64:283.410:321.011:150.26:516:00New Moon23Mon
24Tue5:142.85:093.311:180.811:520.26:506:01New Moon24Tue
25Wed5:492.95:513.212:020.76:486:02New Moon25Wed
26Thu6:233.06:323.012:270.312:460.66:476:03New Moon26Thu
27Fri6:563.17:152.81:000.51:290.56:466:05Waxing Crescent27Fri
28Sat7:283.28:002.61:310.72:130.56:446:06Waxing Crescent28Sat
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 transitional phase. Tonight's moon is 39% 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 shifting between spring and neap.

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 Third Quarter (39% illuminated). This places Blackslough Landing, San Joaquin River, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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