37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

92°
H 93°
L 59°
WNW
9mph
High tide
4:38 pm

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

TIDE TIMES for Monday, August 24, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 9:53 pm (1.7 ft)
Next high tide : in 2h 21m at 4:38 pm (2.4 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Gibbous (89% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1919

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:582.211:103.05:520.45:261.67:006:50First Quarter1Wed
2Thu12:542.26:490.46:391.57:016:48First Quarter2Thu
3Fri12:122.91:482.27:420.37:431.37:026:47First Quarter3Fri
4Sat1:182.92:372.48:300.38:401.17:036:45Waxing Gibbous4Sat
5Sun2:222.93:212.69:150.39:320.87:046:44Waxing Gibbous5Sun
6Mon3:212.94:012.99:570.310:230.57:056:42Waxing Gibbous6Mon
7Tue4:173.04:403.310:380.411:120.27:066:41Waxing Gibbous7Tue
8Wed5:103.05:183.611:180.67:076:39Full Moon8Wed
9Thu6:023.15:563.912:010.011:58 AM0.87:076:38Full Moon9Thu
10Fri6:543.06:364.112:51-0.212:381.07:086:36Full Moon10Fri
11Sat7:472.97:204.21:42-0.31:201.17:096:35Waning Gibbous11Sat
12Sun8:422.88:074.22:34-0.32:061.37:106:33Waning Gibbous12Sun
13Mon9:402.79:014.03:28-0.32:581.47:116:32Waning Gibbous13Mon
14Tue10:402.510:013.74:25-0.24:011.57:126:31Third Quarter14Tue
15Wed11:402.511:073.45:25-0.15:161.47:136:29Third Quarter15Wed
16Thu12:392.56:240.06:311.37:146:28Third Quarter16Thu
17Fri12:153.11:362.67:210.17:401.07:156:26Third Quarter17Fri
18Sat1:232.92:272.78:140.28:420.87:166:25Waning Crescent18Sat
19Sun2:292.73:142.99:020.39:370.57:176:24Waning Crescent19Sun
20Mon3:302.63:553.19:460.410:280.37:186:22Waning Crescent20Mon
21Tue4:252.64:343.310:290.611:140.17:196:21Waning Crescent21Tue
22Wed5:142.65:103.411:100.711:590.07:206:20New Moon22Wed
23Thu6:002.65:463.611:500.97:216:18New Moon23Thu
24Fri6:442.66:203.612:41-0.112:291.17:226:17New Moon24Fri
25Sat7:282.66:533.61:24-0.11:071.37:236:16New Moon25Sat
26Sun7:132.66:273.51:060.012:441.46:245:15Waxing Crescent26Sun
27Mon7:592.57:013.41:490.01:201.56:255:13Waxing Crescent27Mon
28Tue8:482.47:383.22:340.01:581.66:265:12Waxing Crescent28Tue
29Wed9:392.38:223.03:210.12:471.66:275:11Waxing Crescent29Wed
30Thu10:302.29:162.84:110.14:011.56:285:10First Quarter30Thu
31Fri11:202.210:232.65:020.15:161.36:295:09First Quarter31Fri
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 89% 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 (89% 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