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 6h 13m 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 - Jul 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:286.52:384.68:02-1.87:532.45:528:38New Moon1Sun
2Mon1:226.23:224.78:48-1.68:522.35:528:38Waxing Crescent2Mon
3Tue2:165.84:054.99:33-1.29:552.15:538:38Waxing Crescent3Tue
4Wed3:115.24:475.010:18-0.611:021.85:538:38Waxing Crescent4Wed
5Thu4:114.55:315.111:030.15:548:38First Quarter5Thu
6Fri5:203.86:155.212:131.611:50 AM0.85:548:37First Quarter6Fri
7Sat6:423.37:015.31:251.312:411.55:558:37First Quarter7Sat
8Sun8:173.17:475.32:330.91:392.25:558:37First Quarter8Sun
9Mon9:483.28:335.43:350.52:412.65:568:36Waxing Gibbous9Mon
10Tue10:583.59:185.44:270.23:402.95:578:36Waxing Gibbous10Tue
11Wed11:513.710:015.55:13-0.14:343.15:578:36Waxing Gibbous11Wed
12Thu12:343.95:53-0.35:213.15:588:35Waxing Gibbous12Thu
13Fri1:104.06:30-0.46:033.15:598:35Full Moon13Fri
14Sat1:424.07:03-0.56:423.05:598:34Full Moon14Sat
15Sun12:005.52:114.17:35-0.67:192.96:008:34Full Moon15Sun
16Mon12:375.42:384.28:05-0.67:572.76:018:33Full Moon16Mon
17Tue1:155.23:064.38:34-0.58:362.66:028:33Waning Gibbous17Tue
18Wed1:545.03:344.59:05-0.39:192.46:028:32Waning Gibbous18Wed
19Thu2:354.74:034.79:360.010:082.16:038:31Waning Gibbous19Thu
20Fri3:224.24:364.910:100.511:041.96:048:31Waning Gibbous20Fri
21Sat4:193.85:125.110:481.06:058:30Third Quarter21Sat
22Sun5:343.35:535.312:071.511:32 AM1.66:058:29Third Quarter22Sun
23Mon7:093.16:425.61:171.112:262.26:068:29Third Quarter23Mon
24Tue8:513.27:375.82:270.51:322.76:078:28Third Quarter24Tue
25Wed10:133.58:366.13:32-0.12:442.96:088:27Waning Crescent25Wed
26Thu11:133.89:356.34:30-0.63:522.96:098:26Waning Crescent26Thu
27Fri12:024.15:23-1.04:552.86:108:25Waning Crescent27Fri
28Sat12:454.46:12-1.35:522.56:108:25New Moon28Sat
29Sun1:254.76:57-1.36:482.26:118:24New Moon29Sun
30Mon12:216.32:044.97:41-1.27:421.96:128:23New Moon30Mon
31Tue1:146.02:425.18:22-0.98:371.66:138:22Waxing Crescent31Tue
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