37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

56°
H 71°
L 45°
NW
9mph
High tide
1:47 pm

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

TIDE TIMES for Wednesday, November 4, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 8:16 pm (0.4 ft)
Next high tide : in 4h 49m at 1:47 pm (2.9 ft)
Sunset today : 5:03 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1785

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:462.84:112.910:090.410:360.46:085:55New Moon1Sat
2Sun4:322.84:423.110:450.611:190.26:095:53New Moon2Sun
3Mon5:162.85:133.311:200.86:105:52New Moon3Mon
4Tue6:002.75:423.412:010.211:53 AM1.06:115:50New Moon4Tue
5Wed6:442.66:103.512:430.112:221.36:125:49Waxing Crescent5Wed
6Thu7:312.66:393.51:250.212:451.56:135:47Waxing Crescent6Thu
7Fri8:212.47:113.52:090.212:521.66:145:46Waxing Crescent7Fri
8Sat9:152.37:513.52:580.21:041.76:155:44Waxing Crescent8Sat
9Sun10:132.28:403.43:530.31:361.76:165:43First Quarter9Sun
10Mon11:122.19:433.24:520.22:311.76:175:41First Quarter10Mon
11Tue12:092.15:500.15:231.66:185:40First Quarter11Tue
12Wed1:002.36:440.16:441.36:195:38First Quarter12Wed
13Thu12:183.01:462.57:330.07:480.96:205:37Waxing Gibbous13Thu
14Fri1:322.92:282.88:180.18:460.56:215:36Waxing Gibbous14Fri
15Sat2:392.93:083.29:010.29:410.06:225:34Waxing Gibbous15Sat
16Sun3:402.93:473.79:430.510:34-0.36:235:33Full Moon16Sun
17Mon4:382.94:274.010:240.711:27-0.56:245:31Full Moon17Mon
18Tue5:332.85:094.311:061.06:255:30Full Moon18Tue
19Wed6:282.85:514.412:18-0.611:49 AM1.36:265:29Waning Gibbous19Wed
20Thu7:232.76:374.31:10-0.512:341.56:275:27Waning Gibbous20Thu
21Fri8:192.67:264.12:03-0.41:231.66:285:26Waning Gibbous21Fri
22Sat9:172.48:203.82:57-0.22:201.76:295:25Waning Gibbous22Sat
23Sun10:152.39:203.43:53-0.13:281.76:305:24Third Quarter23Sun
24Mon11:132.310:243.14:500.04:431.66:315:22Third Quarter24Mon
25Tue12:082.35:460.15:551.36:325:21Third Quarter25Tue
26Wed12:572.36:370.27:001.06:335:20Third Quarter26Wed
27Thu12:352.51:402.57:230.27:560.76:345:19Waning Crescent27Thu
28Fri1:382.32:182.78:060.38:460.46:355:17Waning Crescent28Fri
29Sat2:372.22:532.98:450.59:330.26:365:16Waning Crescent29Sat
30Sun3:302.33:273.19:230.710:170.06:375:15Waning Crescent30Sun
31Mon4:182.34:003.410:000.910:59-0.16:385:14New Moon31Mon
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 20% 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 Waning Crescent (20% 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