Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Rio Vista, CA.

Next low tide : in 5h 22m at 3:37 pm (0.7 ft)
Next high tide : 9:55 pm (4.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:50 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jun 1996

< May 1996

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Jul 1996 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Sat	2:46	4.2	5:00	2.6	11:16	-0.4	10:10	1.5	5:45	8:24		1	Sat
2	Sun	3:29	4.3	5:52	2.8			12:01	-0.5	5:44	8:24		2	Sun
3	Mon	4:16	4.3	6:44	2.9			12:45	-0.6	5:44	8:25		3	Mon
4	Tue	5:07	4.2	7:34	3.1	12:04	1.4	1:30	-0.6	5:44	8:26		4	Tue
5	Wed	6:03	4.0	8:24	3.3	1:03	1.4	2:15	-0.5	5:43	8:26		5	Wed
6	Thu	7:04	3.7	9:15	3.5	2:08	1.3	3:02	-0.3	5:43	8:27		6	Thu
7	Fri	8:16	3.3	10:06	3.7	3:17	1.2	3:51	-0.1	5:43	8:27		7	Fri
8	Sat	9:38	3.0	10:57	3.9	4:30	1.1	4:42	0.1	5:43	8:28		8	Sat
9	Sun	11:02	2.7	11:46	4.1	5:43	0.9	5:32	0.3	5:43	8:28		9	Sun
10	Mon			12:19	2.6	6:53	0.6	6:23	0.6	5:43	8:29		10	Mon
11	Tue	12:33	4.2	1:27	2.6	7:56	0.3	7:13	0.8	5:43	8:29		11	Tue
12	Wed	1:15	4.3	2:29	2.6	8:54	0.0	8:01	1.1	5:43	8:30		12	Wed
13	Thu	1:54	4.3	3:25	2.7	9:45	-0.2	8:50	1.3	5:43	8:30		13	Thu
14	Fri	2:30	4.3	4:19	2.8	10:32	-0.4	9:37	1.5	5:43	8:31		14	Fri
15	Sat	3:05	4.2	5:10	2.9	11:14	-0.5	10:22	1.6	5:43	8:31		15	Sat
16	Sun	3:39	4.2	5:59	3.0	11:53	-0.5	11:07	1.6	5:43	8:31		16	Sun
17	Mon	4:13	4.1	6:43	3.1			12:29	-0.4	5:43	8:32		17	Mon
18	Tue	4:50	4.0	7:25	3.2			1:01	-0.3	5:43	8:32		18	Tue
19	Wed	5:29	3.8	8:04	3.3	12:36	1.6	1:32	-0.2	5:43	8:32		19	Wed
20	Thu	6:11	3.6	8:43	3.4	1:23	1.6	2:01	0.0	5:43	8:33		20	Thu
21	Fri	6:57	3.4	9:21	3.5	2:14	1.6	2:30	0.1	5:44	8:33		21	Fri
22	Sat	7:50	3.1	9:58	3.5	3:11	1.6	3:01	0.3	5:44	8:33		22	Sat
23	Sun	8:54	2.8	10:34	3.6	4:16	1.5	3:37	0.5	5:44	8:33		23	Sun
24	Mon	10:17	2.6	11:09	3.7	5:23	1.3	4:18	0.7	5:44	8:33		24	Mon
25	Tue	11:42	2.4	11:43	3.9	6:30	1.1	5:03	1.0	5:45	8:33		25	Tue
26	Wed			12:55	2.4	7:33	0.8	5:51	1.2	5:45	8:33		26	Wed
27	Thu	12:19	4.0	1:59	2.4	8:30	0.5	6:43	1.4	5:45	8:33		27	Thu
28	Fri	12:59	4.2	2:56	2.5	9:23	0.2	7:42	1.5	5:46	8:33		28	Fri
29	Sat	1:42	4.4	3:50	2.6	10:12	-0.1	8:48	1.6	5:46	8:33		29	Sat
30	Sun	2:28	4.5	4:41	2.8	10:59	-0.3	9:54	1.6	5:47	8:33		30	Sun
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9415316)

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What time does the tide turn (slack tide) in Rio Vista, CA today?

Slack tide in Rio Vista, CA is approximately 6:46 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 Rio Vista, CA?

Rio Vista, CA is currently in a neap phase. Tonight's moon is 50% 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 Rio Vista, 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 Rio Vista, CA?

Tide predictions for Rio Vista, 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 Rio Vista, CA?

Tide data for Rio Vista, CA is sourced from NOAA Station #9415316. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415316.

What is the moon phase in Rio Vista, CA tonight?

Tonight the moon over Rio Vista, CA is Third Quarter (50% illuminated). This places Rio Vista, 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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