Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Marshall, Tomales Bay, CA.

Next low tide : in 6h 00m at 5:43 am (-1.3 ft)
Next high tide : 12:32 pm (4.0 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Jul 2026

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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	Wed	12:48	5.4	3:19	4.0	8:29	-0.8	8:12	3.1	5:52	8:38		1	Wed
2	Thu	1:26	5.3	3:49	4.1	9:02	-0.7	8:54	3.0	5:52	8:38		2	Thu
3	Fri	2:04	5.0	4:19	4.2	9:34	-0.6	9:40	2.9	5:53	8:38		3	Fri
4	Sat	2:46	4.7	4:50	4.3	10:08	-0.4	10:34	2.7	5:53	8:38		4	Sat
5	Sun	3:33	4.3	5:22	4.6	10:44	0.1	11:36	2.3	5:54	8:38		5	Sun
6	Mon	4:31	3.8	5:57	4.8	11:23	0.6			5:55	8:37		6	Mon
7	Tue	5:47	3.3	6:34	5.1	12:44	1.9	12:07	1.2	5:55	8:37		7	Tue
8	Wed	7:24	3.0	7:16	5.5	1:52	1.2	12:58	1.9	5:56	8:37		8	Wed
9	Thu	9:07	3.1	8:03	5.8	2:57	0.5	1:57	2.5	5:56	8:36		9	Thu
10	Fri	10:33	3.4	8:55	6.1	3:56	-0.2	3:01	2.9	5:57	8:36		10	Fri
11	Sat	11:39	3.7	9:49	6.4	4:51	-0.8	4:05	3.1	5:58	8:36		11	Sat
12	Sun			12:32	4.0	5:43	-1.3	5:06	3.1	5:58	8:35		12	Sun
13	Mon			1:19	4.3	6:34	-1.6	6:05	3.0	5:59	8:35		13	Mon
14	Tue			2:02	4.5	7:22	-1.7	7:02	2.8	6:00	8:34		14	Tue
15	Wed	12:33	6.5	2:43	4.6	8:08	-1.6	7:59	2.5	6:00	8:34		15	Wed
16	Thu	1:26	6.2	3:23	4.8	8:52	-1.4	8:57	2.3	6:01	8:33		16	Thu
17	Fri	2:19	5.7	4:03	4.9	9:35	-0.9	9:58	2.0	6:02	8:33		17	Fri
18	Sat	3:13	5.0	4:42	5.0	10:16	-0.3	11:02	1.8	6:03	8:32		18	Sat
19	Sun	4:12	4.3	5:22	5.1	10:58	0.5			6:03	8:31		19	Sun
20	Mon	5:21	3.6	6:02	5.2	12:11	1.6	11:41 AM	1.3	6:04	8:31		20	Mon
21	Tue	6:48	3.2	6:45	5.2	1:21	1.3	12:30	2.0	6:05	8:30		21	Tue
22	Wed	8:33	3.1	7:30	5.2	2:29	0.9	1:29	2.6	6:06	8:29		22	Wed
23	Thu	10:07	3.3	8:18	5.3	3:30	0.6	2:36	3.1	6:07	8:29		23	Thu
24	Fri	11:12	3.6	9:05	5.3	4:24	0.3	3:40	3.3	6:07	8:28		24	Fri
25	Sat			12:00	3.8	5:10	0.0	4:35	3.4	6:08	8:27		25	Sat
26	Sun			12:38	4.0	5:51	-0.2	5:21	3.3	6:09	8:26		26	Sun
27	Mon			1:10	4.0	6:28	-0.4	6:02	3.2	6:10	8:25		27	Mon
28	Tue			1:39	4.1	7:01	-0.5	6:39	3.0	6:11	8:24		28	Tue
29	Wed			2:05	4.2	7:32	-0.6	7:16	2.9	6:12	8:24		29	Wed
30	Thu	12:35	5.5	2:31	4.3	8:01	-0.6	7:53	2.7	6:12	8:23		30	Thu
31	Fri	1:13	5.3	2:57	4.4	8:31	-0.4	8:33	2.4	6:13	8:22		31	Fri
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9415339)

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When is the lowest tide this week in Marshall, Tomales Bay, CA?

The lowest tide this week in Marshall, Tomales Bay, CA is -1.7 ft on Tuesday, Jul 14 at 7:22 am.

When is the highest tide this week in Marshall, Tomales Bay, CA?

The highest tide this week in Marshall, Tomales Bay, CA is 6.6 ft on Monday, Jul 13 at 11:39 pm — worth noting for launching your boat and being alert for possible high tide flooding.

What time does the tide turn (slack tide) in Marshall, Tomales Bay, CA today?

Slack tide in Marshall, Tomales Bay, CA is approximately 9:07 am — 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 Marshall, Tomales Bay, CA?

Marshall, Tomales Bay, CA is currently in a spring phase. Tonight's moon is 10% 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 Marshall, Tomales Bay, 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 Marshall, Tomales Bay, CA?

Tide predictions for Marshall, Tomales Bay, 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 Marshall, Tomales Bay, CA?

Tide data for Marshall, Tomales Bay, CA is sourced from NOAA Station #9415339. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415339.

What time is high tide in Marshall, Tomales Bay, CA today?

High tides in Marshall, Tomales Bay, CA today: 12:32 pm (4.0 ft), 10:44 pm (6.6 ft). The 10:44 pm high of 6.6 ft is notably higher than the other — known as diurnal inequality, common on coasts influenced by lunar declination.

What time is low tide in Marshall, Tomales Bay, CA today?

Low tides in Marshall, Tomales Bay, CA today: 5:43 am (-1.3 ft), 5:06 pm (3.1 ft). The 5:43 am low of -1.3 ft is a minus tide — water below the MLLW reference datum, which can expose tidepools, mudflats, and shellfish beds not normally accessible.

What is the tidal range in Marshall, Tomales Bay, CA today?

Today's tidal range in Marshall, Tomales Bay, CA is 7.9 ft — the difference between the day's highest and lowest water level. This month's average daily range is about 5.6 ft, so today's swing is above-average.

What is the moon phase in Marshall, Tomales Bay, CA tonight?

Tonight the moon over Marshall, Tomales Bay, CA is Waning Crescent (10% illuminated). This places Marshall, Tomales Bay, CA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

What type of tides does Marshall, Tomales Bay, CA have — semi-diurnal, diurnal, or mixed?

Marshall, Tomales Bay, CA has semi-diurnal tides — two high tides and two low tides roughly every 24 hours and 50 minutes, with similar heights.

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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