37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

65°
H -°
L 56°
W
3mph
High tide
4:21 am

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

TIDE TIMES for Thursday, September 24, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 11:03 am (0.2 ft)
Next high tide : in 3h 50m at 4:21 am (3.1 ft)
Sunset today : 6:59 pm
Sunrise tomorrow : 6:55 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Mar 1855

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:262.43:533.69:541.410:570.16:446:05Waxing Gibbous1Thu
2Fri5:012.54:353.510:411.211:340.16:436:06Full Moon2Fri
3Sat5:342.65:173.311:271.06:416:07Full Moon3Sat
4Sun6:072.75:583.112:090.112:110.86:406:08Full Moon4Sun
5Mon6:392.86:402.912:410.212:550.66:386:09Full Moon5Mon
6Tue7:092.97:252.71:110.41:390.56:376:10Waning Gibbous6Tue
7Wed7:383.18:162.51:370.62:250.46:366:11Waning Gibbous7Wed
8Thu8:083.29:132.31:540.93:170.46:346:12Waning Gibbous8Thu
9Fri8:443.410:172.22:041.24:170.36:336:13Third Quarter9Fri
10Sat9:293.511:272.12:221.45:230.36:316:14Third Quarter10Sat
11Sun10:253.62:561.66:290.26:306:15Third Quarter11Sun
12Mon12:402.111:33 AM3.73:531.77:300.16:286:16Third Quarter12Mon
13Tue1:482.112:483.86:351.78:27-0.16:276:17Waning Crescent13Tue
14Wed2:452.31:583.87:551.59:18-0.26:256:18Waning Crescent14Wed
15Thu3:322.53:023.89:011.210:06-0.26:246:19Waning Crescent15Thu
16Fri4:152.74:013.710:010.910:50-0.26:226:20New Moon16Fri
17Sat4:553.04:563.610:580.511:32-0.16:216:21New Moon17Sat
18Sun5:343.25:493.311:530.26:196:22New Moon18Sun
19Mon6:133.46:423.012:130.112:460.06:176:23New Moon19Mon
20Tue6:523.67:362.712:520.41:37-0.16:166:24Waxing Crescent20Tue
21Wed7:323.68:312.51:300.72:29-0.16:146:25Waxing Crescent21Wed
22Thu8:143.69:282.32:091.03:230.06:136:26Waxing Crescent22Thu
23Fri8:593.510:272.22:501.34:200.26:116:27First Quarter23Fri
24Sat9:483.411:292.13:391.55:200.36:106:27First Quarter24Sat
25Sun10:443.24:431.66:200.36:086:28First Quarter25Sun
26Mon12:342.011:45 AM3.15:531.77:170.36:076:29First Quarter26Mon
27Tue1:352.012:483.16:581.58:080.36:056:30Waxing Gibbous27Tue
28Wed2:262.11:483.07:561.48:540.26:046:31Waxing Gibbous28Wed
29Thu3:072.22:433.08:491.19:360.26:026:32Waxing Gibbous29Thu
30Fri3:442.43:322.99:390.910:150.26:016:33Waxing Gibbous30Fri
31Sat4:172.64:192.910:260.610:520.25:596:34Full Moon31Sat
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 Waxing Gibbous (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