Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Tuesday, September 1, 2026
The tide is currently falling in Napa, CA.

Next low tide : in 2h 20m at 10:51 am (1.6 ft)
Next high tide : 4:57 pm (7.4 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:39 am
Moon phase : Waning Gibbous (77% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Jun 1984

< May 1984

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Jul 1984 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Fri	2:29	7.6	5:05	5.5	10:01	-1.1	9:40	2.9	5:46	8:26		1	Fri
2	Sat	3:11	7.5	5:55	5.6	10:46	-1.1	10:32	3.0	5:46	8:27		2	Sat
3	Sun	3:58	7.3	6:47	5.6	11:35	-1.0	11:34	2.9	5:46	8:28		3	Sun
4	Mon	4:51	6.9	7:39	5.8			12:27	-0.9	5:46	8:28		4	Mon
5	Tue	5:54	6.4	8:28	6.1	12:50	2.8	1:23	-0.6	5:45	8:29		5	Tue
6	Wed	7:07	5.8	9:14	6.4	2:13	2.5	2:20	-0.2	5:45	8:30		6	Wed
7	Thu	8:30	5.4	9:57	6.9	3:31	1.9	3:16	0.2	5:45	8:30		7	Thu
8	Fri	9:57	5.1	10:37	7.3	4:38	1.2	4:10	0.7	5:45	8:31		8	Fri
9	Sat	11:18	5.1	11:16	7.7	5:35	0.5	5:01	1.2	5:45	8:31		9	Sat
10	Sun			12:32	5.2	6:27	-0.2	5:51	1.6	5:44	8:32		10	Sun
11	Mon			1:37	5.4	7:14	-0.7	6:40	2.0	5:44	8:32		11	Mon
12	Tue	12:34	8.1	2:35	5.6	7:59	-1.0	7:29	2.4	5:44	8:33		12	Tue
13	Wed	1:13	8.1	3:29	5.8	8:43	-1.2	8:18	2.6	5:44	8:33		13	Wed
14	Thu	1:53	8.0	4:20	5.9	9:26	-1.2	9:07	2.8	5:44	8:33		14	Thu
15	Fri	2:34	7.7	5:08	5.9	10:08	-1.0	9:58	2.9	5:44	8:34		15	Fri
16	Sat	3:15	7.3	5:54	5.8	10:50	-0.8	10:51	2.9	5:45	8:34		16	Sat
17	Sun	3:58	6.9	6:39	5.8	11:33	-0.6	11:49	2.9	5:45	8:35		17	Sun
18	Mon	4:43	6.4	7:22	5.7			12:16	-0.3	5:45	8:35		18	Mon
19	Tue	5:32	5.8	8:03	5.8	12:55	2.8	1:01	0.1	5:45	8:35		19	Tue
20	Wed	6:30	5.2	8:41	6.0	2:05	2.6	1:47	0.5	5:45	8:35		20	Wed
21	Thu	7:40	4.7	9:16	6.2	3:14	2.3	2:33	0.9	5:45	8:36		21	Thu
22	Fri	9:03	4.4	9:49	6.5	4:14	1.8	3:21	1.3	5:46	8:36		22	Fri
23	Sat	10:28	4.3	10:22	6.8	5:05	1.3	4:08	1.7	5:46	8:36		23	Sat
24	Sun	11:45	4.5	10:55	7.1	5:49	0.8	4:54	2.0	5:46	8:36		24	Sun
25	Mon			12:49	4.8	6:28	0.3	5:39	2.4	5:47	8:36		25	Mon
26	Tue			1:44	5.1	7:06	-0.1	6:23	2.6	5:47	8:36		26	Tue
27	Wed	12:07	7.7	2:32	5.4	7:44	-0.6	7:07	2.8	5:47	8:36		27	Wed
28	Thu	12:47	7.9	3:18	5.6	8:23	-0.9	7:52	2.9	5:48	8:36		28	Thu
29	Fri	1:29	8.0	4:02	5.8	9:04	-1.1	8:39	2.9	5:48	8:36		29	Fri
30	Sat	2:14	8.1	4:45	5.9	9:47	-1.3	9:29	2.8	5:49	8:36		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: (9415623)

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Is this week a spring tide or neap tide in Napa, CA?

Napa, CA is currently in a transitional phase. Tonight's moon is 77% 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 Napa, 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 Napa, CA?

Tide predictions for Napa, 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 Napa, CA?

Tide data for Napa, CA is sourced from NOAA Station #9415623. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415623.

What is the moon phase in Napa, CA tonight?

Tonight the moon over Napa, CA is Waning Gibbous (77% illuminated). This places Napa, 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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