Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Sunday, July 19, 2026
The tide is currently falling in Marshall, Tomales Bay, CA.
Next low tide : in 1h 28m at 10:58 am (0.5 ft)
Next high tide : 5:22 pm (5.1 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:03 am
Moon phase : First Quarter (33% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Apr 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:314.58:404.01:192.62:00-0.25:556:34First Quarter1Thu
2Fri7:454.69:194.42:272.12:54-0.25:546:35Waxing Gibbous2Fri
3Sat8:524.79:554.83:231.43:42-0.25:526:36Waxing Gibbous3Sat
4Sun10:554.811:315.25:150.75:270.06:517:37Waxing Gibbous4Sun
5Mon11:544.96:040.06:110.36:497:38Full Moon5Mon
6Tue12:085.512:514.86:52-0.66:540.76:487:39Full Moon6Tue
7Wed12:465.81:484.77:41-1.07:381.26:467:40Full Moon7Wed
8Thu1:255.92:454.48:30-1.28:241.66:457:41Waning Gibbous8Thu
9Fri2:075.83:444.29:20-1.19:132.06:437:42Waning Gibbous9Fri
10Sat2:515.64:474.010:13-0.910:102.46:427:43Waning Gibbous10Sat
11Sun3:405.25:563.811:10-0.611:182.76:407:44Waning Gibbous11Sun
12Mon4:354.87:083.812:13-0.26:397:44Third Quarter12Mon
13Tue5:404.38:133.912:412.71:190.06:387:45Third Quarter13Tue
14Wed6:524.09:064.02:022.52:230.26:367:46Third Quarter14Wed
15Thu8:063.89:484.23:112.23:180.46:357:47Third Quarter15Thu
16Fri9:133.810:214.34:061.74:040.66:337:48Waning Crescent16Fri
17Sat10:123.810:494.54:521.34:440.86:327:49Waning Crescent17Sat
18Sun11:043.811:154.65:310.85:201.06:317:50Waning Crescent18Sun
19Mon11:513.911:404.86:070.55:531.36:297:51Waning Crescent19Mon
20Tue12:353.96:400.16:241.66:287:52New Moon20Tue
21Wed12:054.91:183.97:11-0.16:561.86:267:53New Moon21Wed
22Thu12:335.02:013.87:43-0.47:282.16:257:54New Moon22Thu
23Fri1:025.12:463.88:17-0.58:022.36:247:55New Moon23Fri
24Sat1:355.13:333.78:53-0.68:402.56:237:56Waxing Crescent24Sat
25Sun2:115.14:243.69:35-0.79:232.76:217:57Waxing Crescent25Sun
26Mon2:524.95:193.610:22-0.610:172.86:207:58Waxing Crescent26Mon
27Tue3:414.76:183.711:15-0.511:272.86:197:59First Quarter27Tue
28Wed4:404.57:153.812:14-0.46:187:59First Quarter28Wed
29Thu5:524.28:064.112:512.61:16-0.26:168:00First Quarter29Thu
30Fri7:124.08:514.52:102.12:160.06:158:01First Quarter30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415339)

Common Questions About Marshall, Tomales Bay, CA Tides

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

Slack tide in Marshall, Tomales Bay, CA is approximately 2:10 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 Marshall, Tomales Bay, CA?

Marshall, Tomales Bay, CA is currently in a transitional phase. Tonight's moon is 33% 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 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 First Quarter (33% illuminated). This places Marshall, Tomales Bay, 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