Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in Marshall, Tomales Bay, CA.
Next low tide : 9:32 pm (1.3 ft)
Next high tide : in 1h 40m at 3:11 pm (5.2 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 6:26 am
Moon phase : Waxing Crescent (12% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Jul 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:422.87:385.12:251.41:142.05:528:38First Quarter1Tue
2Wed9:212.98:195.43:200.82:102.55:528:38Waxing Gibbous2Wed
3Thu10:433.29:045.74:100.13:092.95:538:38Waxing Gibbous3Thu
4Fri11:453.69:526.04:58-0.54:073.15:538:38Waxing Gibbous4Fri
5Sat12:353.95:45-1.05:033.25:548:37Waxing Gibbous5Sat
6Sun1:204.16:32-1.55:583.15:548:37Full Moon6Sun
7Mon2:034.37:18-1.76:522.95:558:37Full Moon7Mon
8Tue12:266.52:444.48:04-1.87:482.75:558:37Full Moon8Tue
9Wed1:206.33:244.68:49-1.68:472.45:568:36Waning Gibbous9Wed
10Thu2:145.94:044.89:34-1.39:512.15:578:36Waning Gibbous10Thu
11Fri3:125.34:455.110:18-0.710:591.85:578:36Waning Gibbous11Fri
12Sat4:154.55:275.311:020.15:588:35Third Quarter12Sat
13Sun5:283.86:125.512:131.411:50 AM0.95:598:35Third Quarter13Sun
14Mon6:563.36:585.61:291.012:421.75:598:34Third Quarter14Mon
15Tue8:363.27:475.72:400.61:422.36:008:34Third Quarter15Tue
16Wed10:063.48:375.73:440.12:472.86:018:33Waning Crescent16Wed
17Thu11:153.79:265.74:40-0.23:513.16:028:33Waning Crescent17Thu
18Fri12:074.05:28-0.44:493.26:028:32Waning Crescent18Fri
19Sat12:514.16:10-0.55:393.26:038:31Waning Crescent19Sat
20Sun1:284.26:48-0.66:233.16:048:31New Moon20Sun
21Mon2:014.27:22-0.67:033.06:058:30New Moon21Mon
22Tue12:165.52:314.27:54-0.67:412.96:068:29New Moon22Tue
23Wed12:535.42:574.28:23-0.48:192.76:068:29New Moon23Wed
24Thu1:305.13:224.38:51-0.28:592.56:078:28Waxing Crescent24Thu
25Fri2:084.83:474.49:190.09:422.46:088:27Waxing Crescent25Fri
26Sat2:484.44:144.69:480.410:292.26:098:26Waxing Crescent26Sat
27Sun3:344.04:434.810:180.911:231.96:108:25Waxing Crescent27Sun
28Mon4:313.55:164.910:511.56:108:24First Quarter28Mon
29Tue5:483.15:555.112:251.611:30 AM2.16:118:24First Quarter29Tue
30Wed7:332.96:425.31:321.212:212.76:128:23First Quarter30Wed
31Thu9:233.17:365.52:380.71:293.16:138:22First Quarter31Thu
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 6:21 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 spring phase. Tonight's moon is 12% 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 Waxing Crescent (12% 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