Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Marshall, Tomales Bay, CA.
Next low tide (tomorrow) : 12:07 am (1.2 ft)
Next high tide : in 4h 38m at 4:59 pm (5.3 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:17 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - May 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:594.37:563.912:173.012:51-0.26:158:02First Quarter1Sat
2Sun6:103.98:444.11:392.71:520.16:148:03First Quarter2Sun
3Mon7:273.69:224.22:492.32:460.46:128:03First Quarter3Mon
4Tue8:413.49:534.43:451.83:320.76:118:04Waxing Gibbous4Tue
5Wed9:483.410:194.64:331.34:121.06:108:05Waxing Gibbous5Wed
6Thu10:473.410:444.85:130.74:481.36:098:06Waxing Gibbous6Thu
7Fri11:403.511:084.95:500.35:211.76:088:07Waxing Gibbous7Fri
8Sat12:293.66:23-0.15:542.16:078:08Full Moon8Sat
9Sun1:163.76:56-0.46:272.46:068:09Full Moon9Sun
10Mon12:015.22:023.77:28-0.77:002.76:058:10Full Moon10Mon
11Tue12:325.32:483.78:03-0.97:362.96:048:11Full Moon11Tue
12Wed1:065.33:353.78:41-1.08:153.06:038:12Waning Gibbous12Wed
13Thu1:435.24:253.79:23-1.09:003.16:028:13Waning Gibbous13Thu
14Fri2:265.15:173.710:10-1.09:553.26:018:13Waning Gibbous14Fri
15Sat3:154.96:103.811:01-0.911:073.16:008:14Waning Gibbous15Sat
16Sun4:144.66:593.911:56-0.75:598:15Third Quarter16Sun
17Mon5:244.27:444.212:322.812:53-0.45:598:16Third Quarter17Mon
18Tue6:463.88:254.61:532.31:480.05:588:17Third Quarter18Tue
19Wed8:113.79:035.03:011.52:420.45:578:18Waning Crescent19Wed
20Thu9:333.69:415.54:000.63:330.95:568:19Waning Crescent20Thu
21Fri10:483.710:195.84:52-0.24:221.45:568:20Waning Crescent21Fri
22Sat11:553.910:596.15:41-0.95:111.95:558:20Waning Crescent22Sat
23Sun12:564.06:28-1.46:002.35:548:21New Moon23Sun
24Mon1:534.17:15-1.76:502.65:548:22New Moon24Mon
25Tue12:226.12:474.28:01-1.77:412.85:538:23New Moon25Tue
26Wed1:075.93:394.28:48-1.68:352.95:528:24Waxing Crescent26Wed
27Thu1:535.64:304.19:35-1.39:333.05:528:24Waxing Crescent27Thu
28Fri2:405.25:214.110:22-1.010:383.05:518:25Waxing Crescent28Fri
29Sat3:304.76:104.111:10-0.511:502.85:518:26Waxing Crescent29Sat
30Sun4:244.16:564.111:59-0.15:508:27First Quarter30Sun
31Mon5:273.67:374.31:032.612:490.45:508:27First Quarter31Mon
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 8:33 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 64% 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 Third Quarter (64% 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