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

TIDE TIMES for Friday, September 4, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.

Next low tide : 6:43 am (0.3 ft)
Next high tide (tomorrow) : in 1h 41m at 10:51 pm (4.0 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (56% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Aug 1897

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Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Sun	6:47	3.4	7:51	3.2	1:09	1.2	1:39	0.2	5:08	7:14		1	Sun
2	Mon	7:39	3.1	8:28	3.4	2:04	1.0	2:10	0.5	5:09	7:13		2	Mon
3	Tue	8:38	2.8	9:08	3.6	3:02	0.8	2:39	0.8	5:10	7:12		3	Tue
4	Wed	9:45	2.5	9:52	3.8	4:06	0.7	3:06	1.1	5:11	7:11		4	Wed
5	Thu	10:57	2.3	10:43	4.0	5:13	0.5	3:35	1.4	5:12	7:10		5	Thu
6	Fri			12:12	2.2	6:20	0.4	4:26	1.7	5:13	7:09		6	Fri
7	Sat			1:27	2.2	7:23	0.3	6:05	1.8	5:14	7:08		7	Sat
8	Sun	12:44	4.3	2:35	2.4	8:21	0.2	7:24	1.9	5:14	7:07		8	Sun
9	Mon	1:46	4.4	3:31	2.5	9:15	0.1	8:31	1.8	5:15	7:05		9	Mon
10	Tue	2:46	4.4	4:18	2.7	10:05	0.0	9:33	1.6	5:16	7:04		10	Tue
11	Wed	3:41	4.4	5:00	2.9	10:51	0.0	10:32	1.4	5:17	7:03		11	Wed
12	Thu	4:32	4.2	5:40	3.0	11:34	0.0	11:27	1.2	5:18	7:02		12	Thu
13	Fri	5:21	3.9	6:18	3.1			12:14	0.1	5:19	7:01		13	Fri
14	Sat	6:09	3.6	6:57	3.2	12:20	1.0	12:52	0.3	5:20	6:59		14	Sat
15	Sun	6:57	3.3	7:34	3.3	1:11	0.9	1:29	0.5	5:21	6:58		15	Sun
16	Mon	7:46	2.9	8:13	3.3	2:01	0.8	2:05	0.7	5:21	6:57		16	Mon
17	Tue	8:38	2.6	8:52	3.4	2:53	0.7	2:40	1.0	5:22	6:56		17	Tue
18	Wed	9:34	2.4	9:33	3.4	3:47	0.7	3:15	1.3	5:23	6:54		18	Wed
19	Thu	10:33	2.3	10:18	3.5	4:46	0.8	3:51	1.6	5:24	6:53		19	Thu
20	Fri	11:37	2.2	11:09	3.5	5:46	0.8	4:42	1.7	5:25	6:52		20	Fri
21	Sat			12:43	2.1	6:45	0.7	5:50	1.8	5:26	6:50		21	Sat
22	Sun	12:04	3.6	1:47	2.2	7:41	0.6	6:55	1.8	5:27	6:49		22	Sun
23	Mon	1:01	3.6	2:42	2.3	8:31	0.5	7:52	1.8	5:28	6:47		23	Mon
24	Tue	1:56	3.7	3:27	2.4	9:17	0.3	8:45	1.6	5:28	6:46		24	Tue
25	Wed	2:47	3.8	4:06	2.6	9:59	0.2	9:36	1.4	5:29	6:45		25	Wed
26	Thu	3:35	3.8	4:43	2.8	10:39	0.1	10:26	1.2	5:30	6:43		26	Thu
27	Fri	4:21	3.7	5:18	3.0	11:17	0.1	11:16	1.0	5:31	6:42		27	Fri
28	Sat	5:07	3.6	5:52	3.2	11:52	0.2			5:32	6:40		28	Sat
29	Sun	5:55	3.4	6:26	3.4	12:05	0.7	12:26	0.4	5:33	6:39		29	Sun
30	Mon	6:46	3.2	7:02	3.6	12:55	0.5	12:59	0.7	5:34	6:37		30	Mon
31	Tue	7:41	2.9	7:41	3.8	1:48	0.4	1:30	1.0	5:34	6:36		31	Tue
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9415021)

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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 neap phase. Tonight's moon is 56% 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 minimum.

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 (56% illuminated). This places Blackslough Landing, San Joaquin River, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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

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