37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

78°
H 81°
L 56°
W
7mph
Low tide
3:04 pm

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

TIDE TIMES for Wednesday, September 2, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 1h 13m at 3:04 pm (1.5 ft)
Next high tide : 9:57 pm (3.9 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 6:36 am
Moon phase : Third Quarter (67% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1904

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:392.39:483.24:320.33:171.56:015:49Third Quarter1Sat
2Sun11:402.310:553.25:320.35:111.56:025:47Third Quarter2Sun
3Mon12:392.46:310.26:271.46:035:46Third Quarter3Mon
4Tue12:083.21:342.67:250.17:321.16:035:44Waning Crescent4Tue
5Wed1:183.32:242.98:160.18:300.86:045:43Waning Crescent5Wed
6Thu2:233.33:103.29:040.19:260.56:055:41Waning Crescent6Thu
7Fri3:233.43:543.59:500.210:200.26:065:40New Moon7Fri
8Sat4:193.44:373.710:360.311:13-0.16:075:38New Moon8Sat
9Sun5:133.35:193.911:210.56:085:37New Moon9Sun
10Mon6:073.26:034.012:05-0.212:060.76:095:35Waxing Crescent10Mon
11Tue7:003.06:484.012:57-0.312:520.96:105:34Waxing Crescent11Tue
12Wed7:552.97:353.81:49-0.21:401.16:115:33Waxing Crescent12Wed
13Thu8:512.78:253.62:41-0.12:311.36:125:31Waxing Crescent13Thu
14Fri9:492.59:193.43:360.03:291.46:135:30First Quarter14Fri
15Sat10:462.410:173.14:330.14:331.46:145:28First Quarter15Sat
16Sun11:442.411:182.95:300.25:391.36:155:27First Quarter16Sun
17Mon12:382.46:250.26:411.26:165:26First Quarter17Mon
18Tue12:202.71:282.57:150.37:371.06:175:24Waxing Gibbous18Tue
19Wed1:202.62:132.68:020.38:280.76:185:23Waxing Gibbous19Wed
20Thu2:172.62:532.88:460.49:160.56:195:21Waxing Gibbous20Thu
21Fri3:082.63:303.09:270.410:010.36:205:20Waxing Gibbous21Fri
22Sat3:562.74:063.210:070.610:450.26:215:19Full Moon22Sat
23Sun4:412.74:403.310:450.711:280.16:225:18Full Moon23Sun
24Mon5:252.75:133.411:220.96:235:16Full Moon24Mon
25Tue6:092.75:443.512:100.011:58 AM1.16:245:15Full Moon25Tue
26Wed6:552.76:153.512:520.012:311.26:255:14Waning Gibbous26Wed
27Thu7:432.66:493.51:34-0.11:021.46:265:13Waning Gibbous27Thu
28Fri8:342.57:283.42:20-0.11:321.56:275:11Waning Gibbous28Fri
29Sat9:282.48:163.33:080.02:171.56:285:10Waning Gibbous29Sat
30Sun10:232.49:163.14:020.03:401.56:295:09Third Quarter30Sun
31Mon11:182.410:292.94:590.05:071.46:305:08Third Quarter31Mon
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 transitional phase. Tonight's moon is 67% 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 (67% 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