38.1617’ N, 122.8930’ W

Marshall, Tomales Bay, CA

58°
H 64°
L 56°
WNW
10mph
High tide
2:56 pm

Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Monday, August 31, 2026
The tide is currently rising in Marshall, Tomales Bay, CA.
Next low tide : 9:41 pm (0.8 ft)
Next high tide : in 3h 25m at 2:56 pm (5.3 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waning Gibbous (86% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Jul 1923

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:095.53:044.68:27-0.98:452.54:517:38Waning Gibbous1Sun
2Mon1:575.03:484.69:11-0.59:452.44:527:38Waning Gibbous2Mon
3Tue2:464.54:324.69:55-0.110:512.34:527:38Waning Gibbous3Tue
4Wed3:414.05:154.710:400.511:592.14:537:38Third Quarter4Wed
5Thu4:463.55:584.711:291.04:537:38Third Quarter5Thu
6Fri6:043.26:404.81:061.812:211.54:547:37Third Quarter6Fri
7Sat7:303.17:215.02:061.41:161.94:547:37Third Quarter7Sat
8Sun8:483.28:025.12:581.02:092.24:557:37Waning Crescent8Sun
9Mon9:503.48:415.33:420.62:592.44:557:37Waning Crescent9Mon
10Tue10:413.69:205.54:220.23:452.64:567:36Waning Crescent10Tue
11Wed11:253.89:595.64:59-0.14:282.74:577:36Waning Crescent11Wed
12Thu12:044.05:33-0.45:092.74:577:36New Moon12Thu
13Fri12:414.26:08-0.65:502.74:587:35New Moon13Fri
14Sat1:184.36:43-0.86:322.64:597:35New Moon14Sat
15Sun12:005.71:554.57:19-0.97:172.54:597:34New Moon15Sun
16Mon12:445.52:334.67:58-0.88:062.45:007:34Waxing Crescent16Mon
17Tue1:305.33:124.88:38-0.69:022.25:017:33Waxing Crescent17Tue
18Wed2:224.93:545.09:21-0.210:041.95:027:33Waxing Crescent18Wed
19Thu3:224.44:395.210:080.311:141.65:027:32First Quarter19Thu
20Fri4:343.95:275.411:000.95:037:31First Quarter20Fri
21Sat6:003.66:195.612:281.211:59 AM1.45:047:31First Quarter21Sat
22Sun7:303.57:135.81:390.71:031.95:057:30Waxing Gibbous22Sun
23Mon8:523.78:066.02:420.12:082.25:057:29Waxing Gibbous23Mon
24Tue9:594.08:596.23:39-0.33:112.45:067:29Waxing Gibbous24Tue
25Wed10:544.39:496.24:30-0.74:082.45:077:28Waxing Gibbous25Wed
26Thu11:434.510:376.25:16-0.95:022.45:087:27Full Moon26Thu
27Fri12:274.66:00-1.05:522.35:097:26Full Moon27Fri
28Sat1:084.76:41-0.96:412.35:107:25Full Moon28Sat
29Sun12:095.71:474.77:21-0.77:292.25:107:24Waning Gibbous29Sun
30Mon12:535.42:234.87:59-0.48:172.25:117:24Waning Gibbous30Mon
31Tue1:375.02:594.78:370.09:072.15:127:23Waning Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415339)

Common Questions About Marshall, Tomales Bay, CA Tides

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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 86% 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 is the moon phase in Marshall, Tomales Bay, CA tonight?

Tonight the moon over Marshall, Tomales Bay, CA is Waning Gibbous (86% illuminated). This places Marshall, Tomales Bay, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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