Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Marshall, Tomales Bay, CA.
Next low tide : 11:02 pm (1.5 ft)
Next high tide : in 2h 42m at 4:23 pm (5.1 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Mar 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:114.911:004.13:592.54:38-0.26:426:04Waning Crescent1Thu
2Fri9:575.111:244.34:382.25:10-0.36:416:05Waning Crescent2Fri
3Sat10:425.111:504.55:151.85:41-0.26:406:06New Moon3Sat
4Sun11:265.05:521.46:12-0.16:386:07New Moon4Sun
5Mon12:164.812:124.96:300.96:440.26:376:08New Moon5Mon
6Tue12:445.01:004.67:110.57:170.76:356:09Waxing Crescent6Tue
7Wed1:155.31:534.37:560.27:531.26:346:10Waxing Crescent7Wed
8Thu1:495.42:533.98:450.08:331.76:326:11Waxing Crescent8Thu
9Fri2:285.54:033.69:42-0.19:192.26:316:12Waxing Crescent9Fri
10Sat3:145.55:293.410:47-0.110:192.76:296:13First Quarter10Sat
11Sun4:125.37:013.412:03-0.16:286:14First Quarter11Sun
12Mon5:225.28:163.71:20-0.26:266:15First Quarter12Mon
13Tue6:395.19:104.01:162.92:29-0.46:256:16Waxing Gibbous13Tue
14Wed7:525.19:534.32:332.53:25-0.56:236:17Waxing Gibbous14Wed
15Thu8:575.110:304.63:352.04:12-0.56:226:18Waxing Gibbous15Thu
16Fri9:555.111:044.84:271.54:54-0.36:206:19Waxing Gibbous16Fri
17Sat10:485.011:365.05:151.05:31-0.16:196:20Full Moon17Sat
18Sun11:384.85:590.66:070.36:176:21Full Moon18Sun
19Mon12:065.112:264.66:400.36:410.86:166:22Full Moon19Mon
20Tue12:355.21:134.37:200.17:151.36:146:23Full Moon20Tue
21Wed1:035.12:024.07:590.07:491.76:136:24Waning Gibbous21Wed
22Thu1:325.02:533.78:400.18:242.26:116:25Waning Gibbous22Thu
23Fri2:034.93:513.49:240.29:042.66:096:26Waning Gibbous23Fri
24Sat2:404.75:033.210:150.39:542.96:086:27Waning Gibbous24Sat
25Sun3:244.56:293.211:150.511:083.16:066:28Third Quarter25Sun
26Mon4:214.37:453.312:240.56:056:29Third Quarter26Mon
27Tue5:294.28:343.512:413.11:290.46:036:29Third Quarter27Tue
28Wed6:404.19:073.71:552.92:240.36:026:30Third Quarter28Wed
29Thu7:464.29:353.92:492.53:090.26:006:31Waning Crescent29Thu
30Fri8:444.310:024.23:342.03:480.25:596:32Waning Crescent30Fri
31Sat9:384.410:284.54:141.54:240.25:576:33Waning Crescent31Sat
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 7:42 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 74% 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 Waning Gibbous (74% 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