Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently falling in Marshall, Tomales Bay, CA.
Next low tide : in 6h 14m at 7:03 am (-1.2 ft)
Next high tide : 1:27 pm (4.7 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:24 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - May 1957

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:045.32:513.98:18-0.98:072.36:148:02New Moon1Wed
2Thu1:415.33:413.98:59-1.08:512.46:138:03Waxing Crescent2Thu
3Fri2:225.24:343.99:45-1.09:422.66:128:04Waxing Crescent3Fri
4Sat3:095.05:303.910:36-0.910:462.66:118:05Waxing Crescent4Sat
5Sun4:054.86:284.011:32-0.66:108:06First Quarter5Sun
6Mon5:114.47:244.212:032.512:32-0.46:098:07First Quarter6Mon
7Tue6:284.18:154.51:262.21:34-0.16:088:08First Quarter7Tue
8Wed7:503.99:014.92:401.62:340.26:078:08First Quarter8Wed
9Thu9:093.99:445.23:430.93:290.56:068:09Waxing Gibbous9Thu
10Fri10:213.910:255.54:380.24:210.96:058:10Waxing Gibbous10Fri
11Sat11:254.111:055.75:28-0.45:091.26:048:11Waxing Gibbous11Sat
12Sun12:234.26:14-0.95:571.66:038:12Full Moon12Sun
13Mon1:184.26:59-1.26:431.96:028:13Full Moon13Mon
14Tue12:245.82:104.27:42-1.37:302.26:018:14Full Moon14Tue
15Wed1:045.63:004.28:25-1.28:182.46:008:15Waning Gibbous15Wed
16Thu1:445.43:494.19:08-1.19:082.65:598:16Waning Gibbous16Thu
17Fri2:255.14:394.09:51-0.810:042.75:588:16Waning Gibbous17Fri
18Sat3:094.75:284.010:36-0.511:062.75:588:17Waning Gibbous18Sat
19Sun3:564.26:184.011:23-0.15:578:18Third Quarter19Sun
20Mon4:523.87:054.012:172.612:140.25:568:19Third Quarter20Mon
21Tue5:573.47:484.21:292.41:060.65:558:20Third Quarter21Tue
22Wed7:133.28:264.32:342.01:580.95:558:21Third Quarter22Wed
23Thu8:303.19:014.63:291.52:481.25:548:21Waning Crescent23Thu
24Fri9:413.19:354.84:151.03:341.55:538:22Waning Crescent24Fri
25Sat10:423.310:085.14:550.54:171.85:538:23Waning Crescent25Sat
26Sun11:363.510:425.35:320.04:582.05:528:24Waning Crescent26Sun
27Mon12:263.76:08-0.45:382.25:528:25New Moon27Mon
28Tue1:133.96:44-0.86:202.45:518:25New Moon28Tue
29Wed1:584.07:22-1.17:032.55:518:26New Moon29Wed
30Thu12:365.72:444.18:02-1.37:492.55:508:27New Moon30Thu
31Fri1:195.73:304.28:45-1.48:392.65:508:28Waxing Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415339)

Common Questions About Marshall, Tomales Bay, CA Tides

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

Slack tide in Marshall, Tomales Bay, CA is approximately 10:15 am — 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 0% 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 New Moon (0% 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