Tides Today & Tomorrow in Prisoners Point, San Joaquin River, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Prisoners Point, San Joaquin River, CA.

Next low tide : in 2h 31m at 5:01 pm (-0.1 ft)
Next high tide : 11:40 pm (3.3 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9415149
Common Questions About Tides

Prisoners Point, San Joaquin River, CA Tides - Jun 2012

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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	Fri	2:32	3.8	3:59	2.7	10:10	0.0	8:59	0.9	5:44	8:23		1	Fri
2	Sat	3:13	4.0	5:01	2.8	11:06	-0.2	9:53	1.1	5:44	8:24		2	Sat
3	Sun	3:56	4.2	6:00	2.9			12:00	-0.3	5:44	8:24		3	Sun
4	Mon	4:41	4.3	6:56	3.0			12:52	-0.4	5:43	8:25		4	Mon
5	Tue	5:29	4.3	7:50	3.1			1:42	-0.4	5:43	8:26		5	Tue
6	Wed	6:18	4.1	8:43	3.2	12:49	1.4	2:30	-0.4	5:43	8:26		6	Wed
7	Thu	7:11	3.9	9:34	3.2	1:50	1.4	3:15	-0.3	5:43	8:27		7	Thu
8	Fri	8:07	3.6	10:24	3.2	2:52	1.3	3:59	-0.2	5:43	8:27		8	Fri
9	Sat	9:10	3.2	11:14	3.3	3:57	1.2	4:43	-0.1	5:42	8:28		9	Sat
10	Sun	10:22	2.8			5:05	1.0	5:27	0.1	5:42	8:28		10	Sun
11	Mon	12:02	3.3	11:42 AM	2.5	6:16	0.9	6:12	0.3	5:42	8:29		11	Mon
12	Tue	12:48	3.4	1:00	2.4	7:26	0.6	6:57	0.5	5:42	8:29		12	Tue
13	Wed	1:32	3.4	2:12	2.3	8:31	0.4	7:42	0.7	5:42	8:30		13	Wed
14	Thu	2:12	3.5	3:15	2.4	9:29	0.2	8:26	1.0	5:42	8:30		14	Thu
15	Fri	2:48	3.6	4:13	2.5	10:21	0.0	9:10	1.2	5:42	8:30		15	Fri
16	Sat	3:19	3.7	5:06	2.7	11:08	-0.1	9:53	1.4	5:42	8:31		16	Sat
17	Sun	3:47	3.8	5:55	2.8	11:52	-0.1	10:36	1.5	5:43	8:31		17	Sun
18	Mon	4:15	3.8	6:41	2.9			12:32	-0.1	5:43	8:31		18	Mon
19	Tue	4:46	3.9	7:24	2.9			1:07	-0.1	5:43	8:32		19	Tue
20	Wed	5:21	3.9	8:03	2.9	12:04	1.6	1:39	-0.1	5:43	8:32		20	Wed
21	Thu	6:01	3.8	8:40	2.9	12:49	1.6	2:05	-0.1	5:43	8:32		21	Thu
22	Fri	6:45	3.8	9:13	2.9	1:35	1.5	2:29	-0.1	5:44	8:32		22	Fri
23	Sat	7:32	3.6	9:45	3.0	2:22	1.3	2:55	-0.1	5:44	8:32		23	Sat
24	Sun	8:23	3.3	10:16	3.1	3:13	1.2	3:27	-0.1	5:44	8:32		24	Sun
25	Mon	9:21	3.1	10:51	3.2	4:10	1.1	4:05	0.0	5:44	8:33		25	Mon
26	Tue	10:31	2.8	11:31	3.4	5:17	0.9	4:49	0.2	5:45	8:33		26	Tue
27	Wed	11:56	2.5			6:33	0.8	5:39	0.5	5:45	8:33		27	Wed
28	Thu	12:15	3.6	1:26	2.5	7:50	0.5	6:33	0.8	5:46	8:33		28	Thu
29	Fri	1:03	3.8	2:45	2.5	8:59	0.3	7:32	1.0	5:46	8:33		29	Fri
30	Sat	1:54	4.0	3:53	2.7	10:01	0.1	8:33	1.3	5:47	8:33		30	Sat
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9415149)

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What time does the tide turn (slack tide) in Prisoners Point, San Joaquin River, CA today?

Slack tide in Prisoners Point, San Joaquin River, CA is approximately 8:20 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Prisoners Point, San Joaquin River, CA?

Prisoners Point, San Joaquin River, CA is currently in a transitional phase. Tonight's moon is 38% 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 Prisoners Point, 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 Prisoners Point, San Joaquin River, CA?

Tide predictions for Prisoners Point, 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 Prisoners Point, San Joaquin River, CA?

Tide data for Prisoners Point, San Joaquin River, CA is sourced from NOAA Station #9415149. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415149.

What is the moon phase in Prisoners Point, San Joaquin River, CA tonight?

Tonight the moon over Prisoners Point, San Joaquin River, CA is First Quarter (38% illuminated). This places Prisoners Point, 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

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